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FLOOD INSURANCE STUDY

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					FLOOD
INSURANCE
STUDY


WASHINGTON COUNTY,
MARYLAND
AND INCORPORATED AREAS
Volume 2 of 2
                                                 Washington County
Community                  Community
Name                       Number                           ↓
BOONSBORO, TOWN OF           240071
CLEAR SPRING, TOWN OF        240072
FUNKSTOWN, TOWN OF           240073
HAGERSTOWN, CITY OF          240074
HANCOCK, TOWN OF             240109
KEEDYSVILLE, TOWN OF         240075
SHARPSBURG, TOWN OF          240076
SMITHSBURG, TOWN OF          240124
WASHINGTON COUNTY
  (UNINCORPORATED AREAS)     240070
WILLIAMSPORT, TOWN OF        240077


                                          PRELIMINARY

                                       SEPTEMBER 30, 2010



                    Federal Emergency Management Agency
                           FLOOD INSURANCE STUDY NUMBER:
                                        24043CV002A
                     NOTICE TO FLOOD INSURANCE STUDY USERS


Communities participating in the National Flood Insurance Program have established
repositories of flood hazard data for floodplain management and flood insurance purposes. This
Flood Insurance Study (FIS) report may not contain all data available within the Community
Map Repository. Please contact the Community Map Repository for any additional data.


The Federal Emergency Management Agency (FEMA) may revise and republish part or all of
this FIS report at any time. In addition, FEMA may revise part of this FIS report by the Letter of
Map Revision process, which does not involve republication or redistribution of the FIS report.
Therefore, users should consult with community officials and check the Community Map
Repository to obtain the most current FIS report components.


Flood Insurance Rate Map panels for this community contain information that was previously
shown separately on the corresponding Flood Boundary and Floodway Map panels (e.g.,
floodways and cross sections). In addition, Flood Insurance Rate Map panels for this community
contain new flood zone designations. The flood hazard zones have been changed as follows:


       Old Zone(s)                   New Zone
       A1 – A30                        AE
       B                                X
       C                                X



Initial Countywide FIS Effective Date: TBD
                                        TABLE OF CONTENTS- Volume 1

                                                                                                                                  Page



1.0   INTRODUCTION ............................................................................................................ 1
      1.1       Purpose of Study ..................................................................................................... 1
      1.2       Authority and Acknowledgements ......................................................................... 1
      1.3       Coordination ........................................................................................................... 3

2.0   AREA STUDIED .............................................................................................................. 5
      2.1       Scope of Study ........................................................................................................ 5
      2.2       Community Description .......................................................................................... 8
      2.3       Principal Flood Problems ........................................................................................ 8
      2.4       Flood Protection Measures ..................................................................................... 9

3.0   ENGINEERING METHODS .......................................................................................... 9
      3.1       Hydrologic Analyses. .............................................................................................. 9
      3.2       Hydraulic Analyses ............................................................................................... 17
      3.3       Vertical Datum ...................................................................................................... 21

4.0   FLOODPLAIN MANAGEMENT APPLICATIONS ................................................. 22
      4.1       Floodplain Boundaries .......................................................................................... 22
      4.2       Floodways ............................................................................................................. 23

5.0   INSURANCE APPLICATIONS ................................................................................... 53

6.0   FLOOD INSURANCE RATE MAP ............................................................................. 54

7.0   OTHER STUDIES .......................................................................................................... 56

8.0   LOCATION OF DATA .................................................................................................. 56

9.0   BIBLIOGRAPHY AND REFERENCES ..................................................................... 56




                                                                 i
                         TABLE OF CONTENTS- Volume 1 - continued

                                                                             Page




                                        FIGURES


Figure 1 – Floodway Schematic                                                  53




                                         TABLES


Table 1 – Flooding Sources Studied by Detailed Methods                               6
Table 2 – Flooding Sources Studied by Approximate Methods                            7
Table 3 – Blue Ridge Fixed Region Regression Equations                              10
Table 4 – Appalachian Plateaus Fixed Region Regression Equations                    11
Table 5 – Summary of Discharges                                                     12
Table 6 – Manning’s “n” Values                                                      18
Table 7 – Floodway Data                                                             24
Table 8 – Community Map History                                                     55



                                        EXHIBITS

Exhibit 1 – Flood Profiles

Antietam Creek                                                     Panels 01P-07P
Branch B                                                           Panels 08P
Conococheague Creek                                                Panels 09P-14P
Hamilton Run                                                       Panels 15P-18P




                                             ii
                               TABLE OF CONTENTS- Volume 2



Exhibit 1- Flood Profiles (continued)


Israel Creek                                                 Panels 19P-28P
Little Antietam Creek                                        Panels 29P-32P
Little Tonoloway Creek                                       Panels 33P-34P
Marsh Run I                                                  Panels 35P-39P
Potomac River                                                Panels 40P-46P
Semple Run                                                   Panel 47P
Toms Run I                                                   Panels 48P-50P
Tonoloway Creek                                              Panel 51P
Tributary No 3                                               Panels 52P-53P
Tributary No 29                                              Panels 54P-56P
Tributary No 29A                                             Panel 57P
Tributary No 29B                                             Panel 58P
Tributary No 30                                              Panels 59P-60P
Tributary No 31                                              Panels 61P-63P
Tributary No 33                                              Panels 64P-70P
Tributary No 35                                              Panel 71P
Tributary No 36                                              Panels 72P-73P
Tributary No 67                                              Panels 74P-75P
Tributary No 73                                              Panels 76P-77P
Tributary No 75                                              Panels 78P-79P
Tributary No 76                                              Panels 80P-81P
Tributary No 78                                              Panels 82P-83P
Tributary No 79                                              Panel 84P
Tributary No 97                                              Panels 85P-86P
Tributary No 98                                              Panel 87P
Tributary No 102                                             Panels 88P-89P
Tributary No 105                                             Panel 90P
Tributary No 112                                             Panels 91P-93P
West Branch                                                  Panels 94P-95P



Exhibit 2 – Flood Insurance Rate Map Index
             Flood Insurance Rate Map




                                             iii
                              310                                                                                                                                                                                                                                          310




                                                                                                                                                                                                         JEFFERSON PIKE/US ROUTE 340
                                    CONFLUENCE WITH POTOMAC RIVER




                                                                            APPALACHIAN TRAIL




                                                                                                                                                                                                              (HIGH LEVEL BRIDGE)
                              300                                                                                                                                                                                                                                          300




                                                                                                            TRYST ROAD
                                                                                                RAILROAD




                                                                                                                                                                                                                                                                                      FLOOD PROFILES
                              290                                                                                                                                                                                                                                          290




                                                                                                                                                                                                                                                                                                                                       ISRAEL CREEK
                              280                                                                                                                                                                                                                                          280

                                                                          NOTE: 0.2, 2, AND 10% ANNUAL CHANCE BACKWATER IMPACTS FROM POTOMAC RIVER UNKNOWN
                                                                           NOTE: 0.2, 2, AND 10% ANNUAL CHANCE PROFILE NOT SHOWN IN POTENTIAL BACKWATER AREA
ELEVATION IN FEET (NAVD 88)




                              270                                                                                                                                                                                                                                          270




                              260                                                                                                                                                                                                                                          260




                                                                                                                                                                                                                                                                                 FEDERAL EMERGENCY MANAGEMENT AGENCY
                              250                                                                                                                                                                                                                                          250




                                                                                                                                                                                                                                                                                                                       WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                           AND INCORPORATED AREAS
                                                                                                                                                                                                                                       B

                              240                                                                                                                                                                                                                                          240
                                                                                                                                                                                                                                              LEGEND
                                                                                                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              230
                                                                                                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                               STREAM BED
                                                                                                                                A                                                                                                              CROSS SECTION LOCATION

                              220
                                    0                               250   500                         750                1000              1250         1500          1750          2000          2250              2500               2750            3000             3250

                                                                                                                                    STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                                                                       19P
                              350                                                                                                                                                                    350




                                                                      (HIGH LEVEL BRIDGE)
                              340                                                                                                                                                                    340




                                                                       ROHRESVILLE ROAD




                                                                                                                                                                                                                FLOOD PROFILES
                              330                                                                                                                                                                    330




                                                                                                                                                                                                                                                                 ISRAEL CREEK
                              320                                                                                                                                                                    320
ELEVATION IN FEET (NAVD 88)




                              310                                                                                                                                                                    310




                              300                                                                                                                                                                    300




                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              290                                                                                                                                                                    290




                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                     AND INCORPORATED AREAS
                                                                                                                                                                                        G

                              280                                                                                                                                                                    280
                                                                                                                                                                        LEGEND
                                                                                                                                                                         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                         1% ANNUAL CHANCE FLOOD
                                                                                                                                                                         2% ANNUAL CHANCE FLOOD
                              270
                                                                                                                                                                         10% ANNUAL CHANCE FLOOD
                                                                                                                                                                         STREAM BED
                                              C                   D                                               E                                   F                  CROSS SECTION LOCATION

                              260
                                3250   3500       3750   4000   4250                        4500     4750             5000       5250          5500       5750   6000            6250             6500

                                                                                 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                 20P
                              390                                                                                                                                                  390




                              380                                                                                                                                                  380




                                                                                                                                                                                              FLOOD PROFILES
                              370                                                                                                                                                  370




                                                                                                                                                                                                                                               ISRAEL CREEK
                              360                                                                                                                                                  360
ELEVATION IN FEET (NAVD 88)




                              350                                                                                                                                                  350




                              340                                                                                                                                                  340




                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              330                                                                                                                                                  330




                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                              320                                                                                                                                                  320
                                                                                                                                                      LEGEND
                                                                                                                                                       0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                       1% ANNUAL CHANCE FLOOD
                                                                                                                                                       2% ANNUAL CHANCE FLOOD
                              310
                                                                                                                                                       10% ANNUAL CHANCE FLOOD
                                                                                                                                                       STREAM BED
                                                              H                                                   I                                    CROSS SECTION LOCATION

                              300
                                6500   6750   7000   7250   7500          7750         8000          8250          8500          8750   9000   9250            9500             9750

                                                                   STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                               21P
                              420                                                                                                                                                             420




                                                                                                                                                             GARRETTS MILL ROAD
                              410                                                                                                                                                             410




                                                                                                      VALLEY ROAD




                                                                                                                                                                                                         FLOOD PROFILES
                              400                                                                                                                                                             400




                                                                                                                                                                                                                                                          ISRAEL CREEK
                              390                                                                                                                                                             390
ELEVATION IN FEET (NAVD 88)




                              380                                                                                                                                                             380




                              370                                                                                                                                                             370




                                                                                                                                                                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY
                              360                                                                                                                                                             360




                                                                                                                                                                                                                                          WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                              AND INCORPORATED AREAS
                                                                                                                                                                          L

                              350                                                                                                                                                             350
                                                                                                                                                             LEGEND
                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              340
                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                 STREAM BED
                                                         J                                                  K                                                    CROSS SECTION LOCATION

                              330
                                9750   10000   10250   10500   10750         11000         11250               11500   11750         12000   12250   12500                        12750   13000

                                                                       STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                          22P
                              450                                                                                                                                                           450




                              440                                                                                                                                                           440




                                                                                                                                                                                                       FLOOD PROFILES
                              430                                                                                                                                                           430




                                                                                                                                                                                                                                                        ISRAEL CREEK
                              420                                                                                                                                                           420
ELEVATION IN FEET (NAVD 88)




                              410                                                                                                                                                           410




                              400                                                                                                                                                           400




                                                                                                                                                                                                  FEDERAL EMERGENCY MANAGEMENT AGENCY
                              390                                                                                                                                                           390




                                                                                                                                                                                                                                        WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                            AND INCORPORATED AREAS
                              380                                                                                                                                                           380
                                                                                                                                                              LEGEND
                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              370
                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                               STREAM BED
                                          M                         N                                                                    O                     CROSS SECTION LOCATION

                              360
                                13000   13250   13500   13750   14000         14250         14500        14750         15000          15250   15500   15750            16000            16250

                                                                        STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                        23P
                              480                                                                                                                                                               480




                              470                                                                                                                                                               470




                                                                                      FROG EYE ROAD




                                                                                                                                                                                                           FLOOD PROFILES
                              460                                                                                                                                                               460




                                                                                                                                                                                                                                                            ISRAEL CREEK
                              450                                                                                                                                                               450
ELEVATION IN FEET (NAVD 88)




                              440                                                                                                                                                               440




                              430                                                                                                                                                               430




                                                                                                                                                                                                      FEDERAL EMERGENCY MANAGEMENT AGENCY
                              420                                                                                                                                                               420




                                                                                                                                                                                                                                            WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                AND INCORPORATED AREAS
                              410                                                                                                                                                               410
                                                                                                                                                                  LEGEND
                                                                                                                                                                   0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                   1% ANNUAL CHANCE FLOOD
                                                                                                                                                                   2% ANNUAL CHANCE FLOOD
                              400
                                                                                                                                                                   10% ANNUAL CHANCE FLOOD
                                                                                                                                                                   STREAM BED
                                                        P                                     Q                              R                                     CROSS SECTION LOCATION

                              390
                                16250   16500   16750       17000   17250         17500               17750   18000        18250          18500   18750   19000            19250            19500

                                                                            STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                            24P
                              510                                                                                                                                                                             510




                              500                                                                                                                                                                             500




                                                                                                                                                                PRIVATE DRIVE




                                                                                                                                                                                                                         FLOOD PROFILES
                              490                                                                                                                                                                             490




                                                                                                                                                                                                                                                                          ISRAEL CREEK
                              480                                                                                                                                                                             480
ELEVATION IN FEET (NAVD 88)




                              470                                                                                                                                                                             470




                              460                                                                                                                                                                             460




                                                                                                                                                                                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY
                              450                                                                                                                                                                             450




                                                                                                                                                                                                                                                          WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                              AND INCORPORATED AREAS
                              440                                                                                                                                                                             440
                                                                                                                                                                                LEGEND
                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              430
                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                 STREAM BED
                                        S                                                                                                 T                                      CROSS SECTION LOCATION

                              420
                                19500       19750   20000   20250   20500         20750         21000        21250         21500              21750   22000   22250                      22500            22750

                                                                            STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                          25P
                              530                                                                                                                                                                                                  530




                                                                                                                                                                CONFLUENCE OF TRIBUTARY 113
                                                                               YARROWSBURG ROAD
                              520                                                                                                                                                                                                  520




                                                                                                                                                                                                               PRIVATE DRIVE




                                                                                                                                                                                                                                              FLOOD PROFILES
                              510                                                                                                                                                                                                  510




                                                                                                                                                                                                                                                                                               ISRAEL CREEK
                              500                                                                                                                                                                                                  500
ELEVATION IN FEET (NAVD 88)




                              490                                                                                                                                                                                                  490




                              480                                                                                                                                                                   CULVERT                        480




                                                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              470                                                                                                                                                                                                  470




                                                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                                                                                                                                                          W                                                                    X

                              460                                                                                                                                                                                                  460
                                                                                                                                                                                              LEGEND
                                                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              450
                                                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                      V
                                                                                                                                                                                               STREAM BED
                                                        U                                                                                                                                      CROSS SECTION LOCATION

                              440
                                22750   23000   23250       23500   23750                         24000   24250   24500    24750          25000   25250       25500                                    25750                   26000

                                                                            STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                               26P
                              550                                                                                                                                                                                          550




                                                                                                                                      CONFLUENCE OF TRIBUTARY 112
                              540                                                                                                                                                                                          540




                                                                                             PRIVATE DRIVE




                                                                                                                                                                                                                                      FLOOD PROFILES
                              530                                                                                                                                                                                          530




                                                                                                                                                                                                                                                                                       ISRAEL CREEK
                              520                                                                                                                                                                                          520
ELEVATION IN FEET (NAVD 88)




                              510                                                                                                                                                                                          510




                              500                                                                                                                                                                                          500




                                                                                                                                                                                                                                 FEDERAL EMERGENCY MANAGEMENT AGENCY
                              490                                                                                                                                                                                          490




                                                                                                                                                                                                                                                                       WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                           AND INCORPORATED AREAS
                              480                                                                                                                                                                                          480
                                                                                                                                                                                             LEGEND
                                                                                                                                                                                              0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                              1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                              2% ANNUAL CHANCE FLOOD
                              470
                                                                                                                                                                                              10% ANNUAL CHANCE FLOOD
                                                                                                                                                                        AA
                                                                                                                                                                                              STREAM BED
                                                                              Y                                                                                     Z                         CROSS SECTION LOCATION

                              460
                                26000   26250   26500   26750   27000         27250         27500            27750     28000                     28250                       28500   28750            29000            29250

                                                                        STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                       27P
                              560                                                                                                                                                                                 560




                                                                                                                          LIMIT OF DETAILED STUDY
                              550                                                                                                                                                                                 550




                                                                                                    BROWNSVILLE ROAD




                                                                                                                                                                                                                             FLOOD PROFILES
                              540                                                                                                                                                                                 540




                                                                                                                                                                                                                                                                              ISRAEL CREEK
                              530                                                                                                                                                                                 530
ELEVATION IN FEET (NAVD 88)




                              520                                                                                                                                                                                 520




                              510                                                                                                                                                                                 510




                                                                                                                                                                                                                        FEDERAL EMERGENCY MANAGEMENT AGENCY
                              500                                                                                                                                                                                 500




                                                                                                                                                                                                                                                              WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                  AND INCORPORATED AREAS
                              490                                                                                                                                                                                 490
                                                                                                                                                                                    LEGEND
                                                                                                                                                                                     0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                     1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                     2% ANNUAL CHANCE FLOOD
                              480
                                                                                                                                                                                     10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                     STREAM BED
                                                                                                                                          AB                                         CROSS SECTION LOCATION

                              470
                                29250   29500   29750   30000   30250         30500         30750                      31000                        31250   31500   31750   32000            32250            32500

                                                                        STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                              28P
                              420                                                                                                                                                                                              420




                                    LIMIT OF DETAILED STUDY




                                                                                             COFFMAN FARMS ROAD




                                                                                                                                                            NORTH MAIN STREET
                              410                                                                                                                                                                                              410




                                                                                                                                                 DAM




                                                                                                                                                                                                                                                                                           LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                          FLOOD PROFILES
                              400                                                                                                                                                                                              400




                              390                                                                                                                                                                                              390
ELEVATION IN FEET (NAVD 88)




                              380                                                                                                                                                                                              380




                              370                                                                                                                                                                                              370




                                                                                                                                                                                                                                     FEDERAL EMERGENCY MANAGEMENT AGENCY
                              360                                                                                                                                                                                              360




                                                                                                                                                                                                                                                                           WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                                                                                                                                                                                                                    F

                              350                                                                                                                                                                                              350
                                                                                                                                                                                                  LEGEND
                                                                                                                                                                                                   0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                   1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                   2% ANNUAL CHANCE FLOOD
                              340
                                                                                                                                                                                                   10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                   STREAM BED
                                                        A                      B                    C                                            D                              E                  CROSS SECTION LOCATION

                              330
                                6100                          6300   6500   6700   6900                           7100   7300   7500      7700           7900                       8100   8300            8500             8700

                                                                                          STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                           29P
                              430                                                                                                                                                                                     430




                                                                       LIMIT OF DETAILED STUDY
                              420                                                                                                                                                                                     420




                                                                                                                                                                                                                                                                                  LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                 FLOOD PROFILES
                              410                                                                                                                                                                                     410




                              400                                                                                                                                                                                     400
ELEVATION IN FEET (NAVD 88)




                              390                                                                                                                                                                                     390




                              380                                                                                                                                                                                     380




                                                                                                                                                                                                                            FEDERAL EMERGENCY MANAGEMENT AGENCY
                              370                                                                                                                                                                                     370




                                                                                                                                                                                                                                                                  WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                        AND INCORPORATED AREAS
                              360                                                                                                                                                                                     360
                                                 NOTE: DETAILED STUDY RESUMES 35084 FEET UPSTREAM OF THE CONFLUENCE WITH ANTIETAM CREEK                                                 LEGEND
                                                                                                                                                                                         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                         1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                         2% ANNUAL CHANCE FLOOD
                              350
                                                                                                                                                                                         10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                         STREAM BED
                                         G                                                 H                                                                                             CROSS SECTION LOCATION

                              340
                                8700   8900   9100        9300               9500                       9700          9900         10100         10300          10500   10700   10900            11100            11300

                                                                                                 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                  30P
                              590                                                                                                                                                                                                                                                    590




                                                                         CONFLUENCE OF TRIBUTARY NO 102
                                       LIMIT OF DETAILED STUDY
                              580                                                                                                                                                                                                                                                    580




                                                                                                                  MILLBROOK ROAD


                                                                                                                                     HOG MAW ROAD




                                                                                                                                                                                                                                                                                                                                                 LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                FLOOD PROFILES
                              570                                                                                                                                                                                                                                                    570




                              560                                                                                                                                                                                                                                                    560
ELEVATION IN FEET (NAVD 88)




                              550                                                                                                                                                                                                                                                    550




                              540                                                                                                                                                                                                                                                    540




                                                                                                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              530                                                                                                                                                                                                                                                    530




                                                                                                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                       AND INCORPORATED AREAS
                                                                                                                                                                                                                                         M

                              520                                                                                                                                                                                                                                                    520
                                                                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                  NOTE: DETAILED STUDY RESUMES 9504 FEET UPSTREAM OF THE CONFLUENCE WITH ANTIETAM CREEK                                                                                                 2% ANNUAL CHANCE FLOOD
                              510
                                                                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                        STREAM BED
                                                             I                                                                                      J     K                             L                                                               CROSS SECTION LOCATION

                              500
                               35000                             35200                                    35400                    35600                35800          36000        36200         36400         36600          36800   37000   37200            37400            37600

                                                                                                                                                                STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                                                 31P
                              640                                                                                                                                                                                                     640




                                                                                                                                       ROHRERSVILLE ROAD
                              630                                                                                                                                                                                                     630




                                                                                                                                                                               LIMIT OF STUDY
                                                   MAIN STREET




                                                                                                                                                                                                                                                                                                  LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                                 FLOOD PROFILES
                              620                                                                                                                                                                                                     620




                              610                                                                                                                                                                                                     610

                                                                                                                         CULVERT
ELEVATION IN FEET (NAVD 88)




                              600                                                                                                                                                                                                     600




                              590                                                                                                                                                                                                     590




                                                                                                                                                                                                                                            FEDERAL EMERGENCY MANAGEMENT AGENCY
                              580                                                                                                                                                                                                     580




                                                                                                                                                                                                                                                                                  WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                        AND INCORPORATED AREAS
                                                                                                                                                                                           T

                              570                                                                                                                                                                                                     570
                                                                                                                                                                                                        LEGEND
                                                                                                                                                                                                         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                         1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                         2% ANNUAL CHANCE FLOOD
                              560
                                                                                                                                                                                                         10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                         STREAM BED
                                               N      O                             P                                       Q      R                       S                                             CROSS SECTION LOCATION

                              550
                               37600   37800              38000   38200   38400          38600        38800         39000          39200                       39400   39600                    39800            40000            40200

                                                                                  STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                  32P
                              460                                                                                                                                                                                                                                                                                      460
                                                                                                                                                          1% ANNUAL CHANCE BACKWATER EFFECTS FROM POTOMAC RIVER




                                                                                                                           WESTERN PIKE/STATE ROUTE 144
                                    CONFLUENCE WITH POTOMAC RIVER




                                                                                                                                                              WARFORDSBURG ROAD
                              450                                                                                                                                                                                                                                                                                      450




                                                                                                                                                                                                                                                                   PRIVATE DRIVE
                                                                       BERM ROAD




                                                                                                                                                                                                      PARK ROAD
                                                                                                 RAILROAD




                                                                                                                                                                                       WEIR




                                                                                                                                                                                                                      WEIR




                                                                                                                                                                                                                                                                                                                                                                                   LITTLE TONOLOWAY CREEK
                                                                                                                                                                                                                                                                                                                                  FLOOD PROFILES
                              440                                                                                                                                                                                                                                                                                      440




                              430                                                                                                                                                                                                                                                                                      430

                                                                                       CULVERT
ELEVATION IN FEET (NAVD 88)




                              420                                                                                                                                                                                                                                                                                      420


                                                                    CULVERT                                        CULVERT

                              410                                                                                                                                                                                                                                                                                      410




                                                                                                                                                                                                                                                                                                                             FEDERAL EMERGENCY MANAGEMENT AGENCY
                              400                                                                                                                                                                                                                                                                                      400




                                                                                                                                                                                                                                                                                                                                                                   WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                                         AND INCORPORATED AREAS
                                                                                                                                                                                                                                                                            H                 I

                              390                                                                                                                                                                                                                                                                                      390
                                                                                                                                                                                                                                                                                          LEGEND
                                                                                                                                                                                                                                                                                           0.2% ANNUAL CHANCE FLOOD
                                                                             NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE BACKWATER EFFECTS FROM POTOMAC RIVER UNKNOWN
                                                                             NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE PROFILE NOT SHOWN IN POTENTIAL BACKWATER AREA                                                                                                                           1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                                           2% ANNUAL CHANCE FLOOD
                              380
                                                                                                                                                                                                                                                                                           10% ANNUAL CHANCE FLOOD
                                                                                                                                                          D
                                                                                                                                                                                                                                                                                           STREAM BED
                                                                                   A                        B                                   C                                  E                              F          G                                                             CROSS SECTION LOCATION

                              370
                                    0                                              500                      1000    1500                                                          2000              2500              3000       3500         4000          4500   5000            5500            6000             6500

                                                                                                                                                                                              STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                                                                                                                   33P
                              480                                                                                                                                                                                                                             480
                                                                   1% ANNUAL CHANCE BACKWATER EFFECTS FROM POTOMAC RIVER




                                                                                                                                                                              LIMIT OF DETAILED STUDY
                              470                                                                                                                                                                                                                             470




                                                                                           KIRK FARM ROAD
                                                                   FOOTBRIDGE




                                                                                                                                                                                                                                                                                                                          LITTLE TONOLOWAY CREEK
                                                                                                                                                                                                                                                                         FLOOD PROFILES
                              460                                                                                                                                                                                                                             460




                              450                                                                                                                                                                                                                             450
ELEVATION IN FEET (NAVD 88)




                              440                                                                                                                                                                                                                             440




                              430                                                                                                                                                                                                                             430




                                                                                                                                                                                                                                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY
                              420                                                                                                                                                                                                                             420




                                                                                                                                                                                                                                                                                                          WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                AND INCORPORATED AREAS
                              410                                                                                                                                                                                                                             410
                                                                                                                                                                                                                                LEGEND
                                                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                       NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE BACKWATER EFFECTS FROM POTOMAC RIVER UNKNOWN
                                                                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                       NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE PROFILE NOT SHOWN IN POTENTIAL BACKWATER AREA
                                                                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              400
                                                                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 STREAM BED
                                                                                J                           K                                                                                      L                             CROSS SECTION LOCATION

                              390
                                6500          7000          7500                    8000                        8500         9000          9500         10000         10500                             11000   11500   12000            12500            13000

                                                                                                                       STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                                                          34P
                              540                                                                                                                                                                                                                                         540




                              530                                                                                                                                                                                                                                         530

                                                                      WASHINGTON ROAD




                                                                                                                                                                                            OLD FORGE ROAD
                                                                                                                                                                   PRIVATE DRIVE
                                                                                                                                               FOOTBRIDGE
                                                                                                  RAILROAD

                                                                                                                 RAILROAD




                                                                                                                                                                                                                                                                                     FLOOD PROFILES
                              520                                                                                                                                                                                                                                         520




                                                                                                                                                                                                                                                                                                                                      MARSH RUN I
                                    CONFLUENCE WITH ANTIETAM CRREEK




                              510                                                                                                                                                                                                                                         510
ELEVATION IN FEET (NAVD 88)




                              500                                                                                                                                                                                                                                         500




                              490                                                                                                                                                                                                                                         490




                                                                                                                                                                                                                                                                                FEDERAL EMERGENCY MANAGEMENT AGENCY
                              480                                                                                                                                                                                                                                         480




                                                                                                                                                                                                                                                                                                                      WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                          AND INCORPORATED AREAS
                                                                                                                                                                                                                                                           G

                              470                                                                                                                                                                                                                                         470
                                                                                                                                                                                                                                             LEGEND
                                                                                                                                                                                                                                              0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                              1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                              2% ANNUAL CHANCE FLOOD
                              460
                                                                                                                                                                                                                                              10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                              STREAM BED
                                                                                        A                    B              C                                  D                                   E                       F                  CROSS SECTION LOCATION

                              450
                                    0                                                       500                    1000         1500   2000                 2500                   3000   3500               4000   4500       5000   5500            6000             6500

                                                                                                                                              STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                                      35P
                              570                                                                                                                                                           570




                              560                                                                                                                                                           560




                                                                             PRIVATE DRIVE




                                                                                                                                                                        PRIVATE DRIVE




                                                                                                                                                                                                       FLOOD PROFILES
                              550                                                                                                                                                           550




                                                                                                                                                                                                                                                        MARSH RUN I
                              540                                                                                                                                                           540
ELEVATION IN FEET (NAVD 88)




                              530                                                                                                                                                           530




                              520                                                                                                                                                           520




                                                                                                                                                                                                  FEDERAL EMERGENCY MANAGEMENT AGENCY
                              510                                                                                                                                                           510




                                                                                                                                                                                                                                        WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                            AND INCORPORATED AREAS
                                                                                                                                                                 M

                              500                                                                                                                                                           500
                                                                                                                                                              LEGEND
                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              490
                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                               STREAM BED
                                                     H                   I                   J             K                           L                       CROSS SECTION LOCATION

                              480
                                6500   7000   7500       8000   8500                         9000   9500   10000       10500          11000   11500   12000            12500            13000

                                                                       STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                        36P
                              590                                                                                                                                                                                                                                                          590




                                                                                    LEITERSBURG PIKE/STATE ROUTE 60




                                                                                                                                                                                                                     CONFLUENCE OF WEST BRANCH
                                                    CONFLUENCE OF TRIBUTARY NO 75
                              580                                                                                                                                                                                                                                                          580




                                                                                                                                                                                                                                                                                                      FLOOD PROFILES
                              570                                                                                                                                                                                                                                                          570




                                                                                                                                                                                                                                                                                                                                                       MARSH RUN I
                              560                                                                                                                                                                                                                                                          560
ELEVATION IN FEET (NAVD 88)




                              550                                                                                                                                                                                                                                                          550




                              540                                                                                                                                                                                                                                                          540




                                                                                                                                                                                                                                                                                                 FEDERAL EMERGENCY MANAGEMENT AGENCY
                              530                                                                                                                                                                                                                                                          530




                                                                                                                                                                                                                                                                                                                                       WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                           AND INCORPORATED AREAS
                                                                                                                                                                                                                                                         R                    S

                              520                                                                                                                                                                                                                                                          520
                                                                                                                                                                                                                                                             LEGEND
                                                                                                                                                                                                                                                              0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                              1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                              2% ANNUAL CHANCE FLOOD
                              510
                                                                                                                                                                                                                                                              10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                              STREAM BED
                                        N                                             O                                                          P                                                           Q                                                CROSS SECTION LOCATION

                              500
                                13000       13500                                   14000                             14500   15000         15500         16000         16500         17000          17500       18000                           18500                19000            19500

                                                                                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                                                       37P
                              620                                                                                                                                                                                        620




                              610                                                                                                                                                                                        610




                                                                                                                       PRIVATE DRIVE




                                                                                                                                                   PRIVATE DRIVE
                                        WEIR




                                                                                                                                                                                                                                    FLOOD PROFILES
                              600                                                                                                                                                                                        600




                                                                                                                                                                                                                                                                                     MARSH RUN I
                              590                                                                                                                                                                                        590
ELEVATION IN FEET (NAVD 88)




                              580                                                                                                                                                                                        580




                              570                                                                                                                                                                                        570




                                                                                                                                                                                                                               FEDERAL EMERGENCY MANAGEMENT AGENCY
                              560                                                                                                                                                                                        560




                                                                                                                                                                                                                                                                     WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                         AND INCORPORATED AREAS
                                                                                                                                                                               Y                             Z

                              550                                                                                                                                                                                        550
                                                                                                                                                                                           LEGEND
                                                                                                                                                                                            0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            2% ANNUAL CHANCE FLOOD
                              540
                                                                                                                                                                                            10% ANNUAL CHANCE FLOOD
                                                                                                                                                                   X
                                                                                                                                                                                            STREAM BED
                                               T               U                        V                                              W                                                    CROSS SECTION LOCATION

                              530
                                19500          20000   20500       21000   21500            22000      22500         23000                 23500   24000               24500       25000            25500            26000

                                                                                   STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                     38P
                              630                                                                                                                                                                              630




                                                                    LEHMANS MILL ROAD
                              620                                                                                                                                                                              620




                                                                                                                                                        LIMIT OF STUDY




                                                                                                                                                                                                                          FLOOD PROFILES
                              610                                                                                                                                                                              610




                                                                                                                                                                                                                                                                           MARSH RUN I
                              600                                                                                                                                                                              600
ELEVATION IN FEET (NAVD 88)




                              590                                                                                                                                                                              590




                              580                                                                                                                                                                              580




                                                                                                                                                                                                                     FEDERAL EMERGENCY MANAGEMENT AGENCY
                              570                                                                                                                                                                              570




                                                                                                                                                                                                                                                           WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                               AND INCORPORATED AREAS
                                                                                                                                                                AE

                              560                                                                                                                                                                              560
                                                                                                                                                                                 LEGEND
                                                                                                                                                                                  0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                  1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                  2% ANNUAL CHANCE FLOOD
                              550
                                                                                                                                                                                  10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                  STREAM BED
                                                   AA                             AB                        AC                         AD                                         CROSS SECTION LOCATION

                              540
                                26000   26500   27000   27500   28000                   28500    29000           29500       30000          30500   31000                31500            32000            32500

                                                                             STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                           39P
                              320                                                                                                                                                                                                                                                                           320




                                                                                                                                                                                     CONFLUENCE OF TRIBUTARY NO 108
                                                             CONFLUENCE OF ISRAEL CREEK




                                                                                                                                                                                                                                                                                  LIMIT OF DETAILED STUDY
                              310                                                                                                                                                                                                                                                                           310




                                                                                                                                                                                                                             US ROUTE 340




                                                                                                                                                                                                                                                                                                                       FLOOD PROFILES
                              300                                                                                                                                                                                                                                                                           300
                                    COUNTY BOUNDARY




                                                                                                                                                                                                                                                                                                                                                                        POTOMAC RIVER
                              290                                                                                                                                                                                                                                                                           290
ELEVATION IN FEET (NAVD 88)




                              280                                                                                                                                                                                                                                                                           280




                              270                                                                                                                                                                                                                                                                           270




                                                                                                                                                                                                                                                                                                                  FEDERAL EMERGENCY MANAGEMENT AGENCY
                              260                                                                                                                                                                                                                                                                           260




                                                                                                                                                                                                                                                                                                                                                        WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                            AND INCORPORATED AREAS
                              250                                                                                                                                                                                                                                                                           250
                                                                                                                                                                                                                                                            LEGEND
                                                                                                 NOTE: DETAILED STUDY RESUMES AT 14.7 MILES UPSTREAM OF COUNTY BOUNDARY (SCALE CHANGES)                                                             *         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                              1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                    *         2% ANNUAL CHANCE FLOOD
                              240
                                                                                                                                                                                                                                                    *         10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                    *         STREAM BED

                                                                                                                                                                                                                                                              CROSS SECTION LOCATION

                              230
                                    0                 1000                                2000         3000          4000          5000         6000          7000          8000                                      9000                  10000   11000            12000                      13000

                                                                                                                                  STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY                                                                             * DATA NOT AVAILABLE                                                                        40P
                              380                                                                                                                                                                                                                                              380




                                                                                                                                                                                                  CONFLUENCE OF MARSH RUN II
                              370                                                                                                                                                                                                                                              370




                                                                                   STATE ROUTE 34
                                                                   RAILROAD




                                                                                                                                                                                                                                                                                          FLOOD PROFILES
                              360                                                                                                                                                                                                                                              360




                                                                                                                                                                                                                                                                                                                                           POTOMAC RIVER
                                         LIMIT OF DETAILED STUDY




                              350                                                                                                                                                                                                                                              350
ELEVATION IN FEET (NAVD 88)




                              340                                                                                                                                                                                                                                              340




                              330                                                                                                                                                                                                                                              330




                                                                                                                                                                                                                                                                                     FEDERAL EMERGENCY MANAGEMENT AGENCY
                              320                                                                                                                                                                                                                                              320




                                                                                                                                                                                                                                                                                                                           WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                               AND INCORPORATED AREAS
                              310                                                                                                                                                                                                                                              310
                                                                                                                                                                                                                                             LEGEND
                                                                                                    NOTE: DETAILED STUDY RESUMES AT 12898 FEET UPSTREAM OF COUNTY BOUNDARY (SCALE CHANGES)                                          *          0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                    *          2% ANNUAL CHANCE FLOOD
                              300
                                                                                                                                                                                                                                    *          10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                    *          STREAM BED

                                                                                                                                                                                                                                               CROSS SECTION LOCATION

                              290
                                    14                                        15                    16           17            18            19            20           21            22     23                                24       25             26                 27

                                                                                                                                           STREAM DISTANCE IN MILES ABOVE COUNTY BOUNDARY                                                    * DATA NOT AVAILABLE                                                          41P
                              410                                                                                                                                                                410




                                                        CONFLUENCE OF DOWNEY BRANCH
                              400                                                                                                                                                                400




                                                                                                                                                                                                            FLOOD PROFILES
                              390                                                                                                                                                                390




                                                                                                                                                                                                                                                             POTOMAC RIVER
                              380                                                                                                                                                                380
ELEVATION IN FEET (NAVD 88)




                              370                                                                                                                                                                370




                              360                                                                                                                                                                360




                                                                                                                                                                                                       FEDERAL EMERGENCY MANAGEMENT AGENCY
                              350                                                                                                                                                                350




                                                                                                                                                                                                                                             WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                              340                                                                                                                                                                340
                                                                                                                                                               LEGEND
                                                                                                                                                      *          0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                      *          2% ANNUAL CHANCE FLOOD
                              330
                                                                                                                                                      *          10% ANNUAL CHANCE FLOOD
                                                                                                                                                      *          STREAM BED

                                                                                                                                                                 CROSS SECTION LOCATION

                              320
                                    27   28   29   30                                 31    32            33           34            35     36   37       38             39                 40

                                                                                           STREAM DISTANCE IN MILES ABOVE COUNTY BOUNDARY                      * DATA NOT AVAILABLE                                                          42P
                                                                                                                                                                                                                              ELEVATION IN FEET (NAVD 88)




                                                      340
                                                                                                                       350
                                                                                                                                                                                                                  360
                                                                                                                                                                                                                        370
                                                                                                                                                                                                                                  380
                                                                                                                                                                                                                                                 390
                                                                                                                                                                                                                                                               400
                                                                                                                                                                                                                                                                             410
                                                                                                                                                                                                                                                                                              420
                                                                                                                                                                                                                                                                                                         430




                                                    40
                                                    41
                                                                                                                                                                                                                                                                            INTERSTATE ROUTE 81

                                                                                                                                                                                                                                                                       CONFLUENCE OF TRIBUTARY NO 36




                                                    42
                                                                                                                                                                                                                                                                                US ROUTE 11
                                                                                                                                                                                                                                                                     CONFLUENCE OF CONOCOCHEAGUE CREEK




                                                    43
                                                    44
                                                    45
                                                    46
                                                    47
                                                    48

   STREAM DISTANCE IN MILES ABOVE COUNTY BOUNDARY                                                                                                                                                                                                               CONFLUENCE OF LITTLE CONOCOCHEAGUE CREEK
                                                    49
                                                    50




                                                                                                                                                                                                                                                                       CONFLUENCE OF CAMP SPRING RUN
                                                                                                    *
                                                                                                                                                                              *



                                                                                                                             *



                                                                                     *




                                                    51
                                                                                                                                                                                                         LEGEND




                                                                                     STREAM BED




                                                    52

* DATA NOT AVAILABLE
                                                            CROSS SECTION LOCATION
                                                                                                                            2% ANNUAL CHANCE FLOOD
                                                                                                                                                     1% ANNUAL CHANCE FLOOD


                                                                                                  10% ANNUAL CHANCE FLOOD
                                                                                                                                                                              0.2% ANNUAL CHANCE FLOOD




                                                    53
                                                                                                                                                                                                                  360
                                                                                                                                                                                                                        370
                                                                                                                                                                                                                                  380
                                                                                                                                                                                                                                                 390
                                                                                                                                                                                                                                                               400
                                                                                                                                                                                                                                                                             410
                                                                                                                                                                                                                                                                                              420
                                                                                                                                                                                                                                                                                                         430




                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY                                                                                                                                                                     FLOOD PROFILES
                                                            WASHINGTON COUNTY, MD
43P




                                                                                      AND INCORPORATED AREAS                                                                                                                                                 POTOMAC RIVER
                              450                                                                                                                                                                450




                                                                                                                   CONFLUENCE OF LICKING CREEK
                              440                                                                                                                                                                440




                                                                                                                                                                                                            FLOOD PROFILES
                              430                                                                                                                                                                430




                                                                                                                                                                                                                                                             POTOMAC RIVER
                              420                                                                                                                                                                420
ELEVATION IN FEET (NAVD 88)




                              410                                                                                                                                                                410




                              400                                                                                                                                                                400




                                                                                                                                                                                                       FEDERAL EMERGENCY MANAGEMENT AGENCY
                              390                                                                                                                                                                390




                                                                                                                                                                                                                                             WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                              380                                                                                                                                                                380
                                                                                                                                                               LEGEND
                                                                                                                                                      *          0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                      *          2% ANNUAL CHANCE FLOOD
                              370
                                                                                                                                                      *          10% ANNUAL CHANCE FLOOD
                                                                                                                                                      *          STREAM BED

                                                                                                                                                                 CROSS SECTION LOCATION

                              360
                                    53   54   55   56   57    58            59           60            61     62                                 63       64             65                 66

                                                             STREAM DISTANCE IN MILES ABOVE COUNTY BOUNDARY                                                    * DATA NOT AVAILABLE                                                          44P
                              490                                                                                                                                                                                              490




                                                                                             CONFLUENCE OF LITTLE TONOLOWAY CREEK
                                                        CONFLUENCE OF TONOLOWAY CREEK
                              480                                                                                                                                                                                              480




                                                                                                                                     US ROUTE 522




                                                                                                                                                                                                                                          FLOOD PROFILES
                              470                                                                                                                                                                                              470




                                                                                                                                                                                                                                                                                           POTOMAC RIVER
                              460                                                                                                                                                                                              460
ELEVATION IN FEET (NAVD 88)




                              450                                                                                                                                                                                              450




                              440                                                                                                                                                                                              440




                                                                                                                                                                                                                                     FEDERAL EMERGENCY MANAGEMENT AGENCY
                              430                                                                                                                                                                                              430




                                                                                                                                                                                                                                                                           WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                               AND INCORPORATED AREAS
                              420                                                                                                                                                                                              420
                                                                                                                                                                                             LEGEND
                                                                                                                                                                                    *          0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                    *          2% ANNUAL CHANCE FLOOD
                              410
                                                                                                                                                                                    *          10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                    *          STREAM BED

                                                                                                                                                                                               CROSS SECTION LOCATION

                              400
                                    66   67   68   69                                   70                                          71              72   73        74     75   76       77             78                 79

                                                                                                                         STREAM DISTANCE IN MILES ABOVE COUNTY BOUNDARY                      * DATA NOT AVAILABLE                                                          45P
                              510                                                                                                                                             510




                                                        CONFLUENCE OF SIDELING HILL CREEK
                              500                                                                                                                                             500




                                                                                                                                                                                         FLOOD PROFILES
                              490                                                                                                                                             490




                                                                                                                                                                                                                                          POTOMAC RIVER
                              480                                                                                                                                             480
ELEVATION IN FEET (NAVD 88)




                              470                                                                                                                                             470




                              460                                                                                                                                             460




                                                                                                                                                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY
                              450                                                                                                                                             450
                                                        COUNTY BOUNDARY




                                                                                                                                                                                                                          WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                              AND INCORPORATED AREAS
                              440                                                                                                                                             440
                                                                                                                                                 LEGEND
                                                                                                                                             *     0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                   1% ANNUAL CHANCE FLOOD
                                                                                                                                             *     2% ANNUAL CHANCE FLOOD
                              430
                                                                                                                                             *     10% ANNUAL CHANCE FLOOD
                                                                                                                                             *     STREAM BED

                                                                                                                                                   CROSS SECTION LOCATION

                              420
                                    79   80   81   82                    83                  84

                                                                                            STREAM DISTANCE IN MILES ABOVE COUNTY BOUNDARY       * DATA NOT AVAILABLE                                                     46P
                              470                                                                                                                                                                                                                                                            470
                                                                        1% ANNUAL CHANCE BACKWATER EFFECTS FROM TRIBUTARY NO 33




                                                                                                                                                                                                                                      LIMIT OF DETAILED STUDY
                              460                                                                                                                                                                                                                                                            460




                                                                                                                                                                                                                      HOPEWELL ROAD
                                                                                                                         WRIGHT ROAD




                                                                                                                                                                                                     WRIGHT ROAD
                                    CONFLUENCE WITH TRIBUTARY NO 33




                                                                                                                                                                                                                                                                                                        FLOOD PROFILES
                              450                                                                                                                                                                                                                                                            450




                                                                                                                                                                                                                                                                                                                                                         SEMPLE RUN
                              440                                                                                                                                                                                                                                                            440
ELEVATION IN FEET (NAVD 88)




                                                                                                                                                                                           CULVERT
                              430                                                                                                                                                                                                                                                            430
                                                                                                                                                                                                                                          CULVERT




                              420                                                                                                                                                                                                                                                            420




                                                                                                                                                                                                                                                                                                   FEDERAL EMERGENCY MANAGEMENT AGENCY
                                                                                                                                           CULVERT
                              410                                                                                                                                                                                                                                                            410




                                                                                                                                                                                                                                                                                                                                         WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                             AND INCORPORATED AREAS
                                                                                                                                                                                                                             E                            F

                              400                                                                                                                                                                                                                                                            400
                                                                                                                                                                                                                                                                LEGEND
                                                                                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              390
                                                                                                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                 STREAM BED
                                                                                         A                           B                 C                                                               D                                                         CROSS SECTION LOCATION

                              380
                                    0                                 200          400           600           800                         1000      1200     1400          1600           1800                    2000               2200                               2400             2600

                                                                                                                           STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 33
                                                                                                                                                                                                                                                                                                                                         47P
                              560                                                                                                                                                                                                                                                                560




                                                                                                                                                                                                   INTERSTATE ROUTE 70 RAMP
                                        LIMIT OF DETAILED STUDY




                                                                                                                                                                      INTERSTATE ROUTE 70
                              550                                                                                                                                                                                                                                                                550




                                                                  PRIVATE DRIVE




                                                                                                                                                                                                                                                                                                            FLOOD PROFILES
                              540                                                                                                                                                                                                                                                                540




                                                                                                                                                                                                                                                                                                                                                             TOMS RUN I
                              530                                                                                                                                                                                                                                                                530
                                                                                                                                                                                            CULVERT

                                                                                                                                                        CULVERT
ELEVATION IN FEET (NAVD 88)




                              520                                                                                                                                                                                                                                                                520




                              510                                                                                                                                                                                                                                                                510




                                                                                                                                                                                                                                                                               MULBERRY STREET




                                                                                                                                                                                                                                                                                                       FEDERAL EMERGENCY MANAGEMENT AGENCY
                              500                                                                                                                                                                                                                                                                500




                                                                                                                                                                                                                                                                                                                                             WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                                                                                                                                                                                                                                                                           I

                              490                                                                                                                                                                                                                                                                490
                                                                                                                                                                                                                                                          LEGEND
                                                                                  CULVERT                                                                                                                                                                  0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                           1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                           2% ANNUAL CHANCE FLOOD
                              480
                                                                                                                                                                                                                                                           10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                           STREAM BED
                                                            A                        B                      C           D                E                        F                            G                              H                            CROSS SECTION LOCATION

                              470
                                11400                              11800                    12200   12600       13000       13400            13800      14200                      14600                                          15000   15400   15800            16200                    16600

                                                                                                                STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                                                                             48P
                              620                                                                                                                                                                                                                                                                                          620




                                                                                        CUMBERLAND STREET/US ROUTE 40




                                                                                                                                NORTH HAWBAKER CIRCLE
                                        SOUTH HAWBAKER CIRCLE




                                                                                                                                                                                     BROADFORDING ROAD
                              610                                                                                                                                                                                                                                                                                          610


                                                                PRIVATE DRIVE




                                                                                                                                                                                                                                     DRAPER ROAD




                                                                                                                                                                                                                                                                                                                                      FLOOD PROFILES
                              600                                                                                                                                                                                                                                      CULVERT                                             600




                                                                                                                                                                                                                                                                                                                                                                                       TOMS RUN I
                              590                                                                                                                                                                                                                                                                                          590
                                                                                                                                                                                                                             CULVERT
ELEVATION IN FEET (NAVD 88)




                              580                                                                                                                                                                                                                                                                                          580




                                                                                                                                                                                                                                                                             DRAPER ROAD
                                                                                                                                                                                CULVERT
                              570                                                                                                                                                                                                                                                                                          570

                                                                     CULVERT




                                                                                                                                                                                                                                                                                                                                 FEDERAL EMERGENCY MANAGEMENT AGENCY
                              560                                                                                                                                                                                                                                                                                          560




                                                                                                                                                                                                                                                                                                                                                                       WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                                           AND INCORPORATED AREAS
                                                                                                                                                                                                                                                                        N                  O

                              550                                                                                                                                                                                                                                                                                          550
                                                                                                                                                                                                                                                                                               LEGEND
                                                                                                                                                                                                                                                                                                0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                                                1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                                                2% ANNUAL CHANCE FLOOD
                              540
                                                                                                                                                                                                                                                                                                10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                                                STREAM BED
                                                                                                                                                                J                                        K                     L                   M                                            CROSS SECTION LOCATION

                              530
                                16600                                           17000                                   17400                           17800       18200       18600                        19000   19400   19800                     20200   20600        21000                       21400

                                                                                                                                                                    STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                                                                                                       49P
                              680                                                                                                                                                                                        680




                              670                                                                                                                                                                                        670




                                                                               LIMIT OF STUDY
                                                        PRIVATE DRIVE




                                                                                                                                                                                                                                    FLOOD PROFILES
                              660                                                                                                                                                                                        660




                                                                                                                                                                                                                                                                                     TOMS RUN I
                              650                                                                                                                                                                                        650
ELEVATION IN FEET (NAVD 88)




                              640                                                                                                                                                                                        640




                              630                                                                                                                                                                                        630




                                                                                                                                                                                                                               FEDERAL EMERGENCY MANAGEMENT AGENCY
                              620                                                                                                                                                                                        620




                                                                                                                                                                                                                                                                     WASHINGTON COUNTY, MD
                                                CULVERT




                                                                                                                                                                                                                                                                                         AND INCORPORATED AREAS
                              610                                                                                                                                                                                        610
                                                                                                                                                                                           LEGEND
                                                                                                                                                                                            0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            2% ANNUAL CHANCE FLOOD
                              600
                                                                                                                                                                                            10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            STREAM BED
                                                    P                   Q                  R                                                                                                CROSS SECTION LOCATION

                              590
                                21400   21800                   22200       22600               23000       23400         23800         24200         24600        25000   25400   25800            26200            26600

                                                                                                STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                     50P
                              460                                                                                                                                                                                                                                                                                                                                                                   460
                                                                                                                                                                                                                                                              1% ANNUAL CHANCE BACKWATER EFFECTS FROM POTOMAC RIVER




                                                                                                                                                       INTERSTATE 70 EASTBOUND (HIGH LEVEL BRIDGE)
                                                                                          MAIN STREET/STATE ROUTE 144




                                                                                                                                                                                                     INTERSTATE 70 WESTBOUND (HIGH LEVEL BRIDGE)




                                                                                                                                                                                                                                                                                                                            LIMIT OF DETAILED STUDY
                                    CONFLUENCE WITH POTOMAC RIVER




                                                                                                                                   TIMBER RIDGE ROAD
                              450                                                                                                                                                                                                                                                                                                                                                                   450

                                                                    AQUEDUCT

                                                                               RAILROAD




                                                                                                                                                                                                                                                                                                                                                                                                               FLOOD PROFILES
                                                                                                                                                                                                                                                                                                                                                                                                                                                                TONOLOWAY CREEK
                              440                                                                                                                                                                                                                                                                                                                                                                   440




                              430                                                                                                                                                                                                                                                                                                                                                                   430
ELEVATION IN FEET (NAVD 88)




                              420                                                                                                                                                                                                                                                                                                                                                                   420



                                                                                                                                                                                                                                                      NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE BACKWATER EFFECTS FROM POTOMAC RIVER UNKNOWN
                              410                                                                                                                                                                                                                                                                                                                                                                   410




                                                                                                                                                                                                                                                                                                                                                                                                          FEDERAL EMERGENCY MANAGEMENT AGENCY
                              400                                                                                                                                                                                                                                                                                                                                                                   400




                                                                                                                                                                                                                                                                                                                                                                                                                                                WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    AND INCORPORATED AREAS
                              390                                                                                                                                                                                                                                                                                                                                                                   390
                                                                                                                                                                                                                                                                                                                                                                      LEGEND

                                                                                                                                                                                                                                                                                                                                                                       1% ANNUAL CHANCE FLOOD

                              380                                                                                                                                     E

                                                                                                                                                       D
                                                                                                                                                                                                                                                                                                                                                                       STREAM BED
                                                                                                        A               B              C                                                                                F                                 G             H                I              J                                       K                      CROSS SECTION LOCATION

                              370
                                    0                                                 1000                                  2000   3000                                                                                                            4000             5000          6000          7000          8000               9000                 10000   11000            12000            13000

                                                                                                                                                                                                                                                              STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                                                                                                                                                                                                51P
                              500                                                                                                                                                                                                                            500
                                                                                         1% ANNUAL CHANCE BACKWATER EFFECTS FROM LITTLE TONOLOWAY CREEK




                                                                                         INTERSTATE ROUTE 68
                              490                                                                                                                                                                                                                            490




                                                                                                                                                       CREEK ROAD
                                    CONFLUENCE WITH LITTLE TONOLOWAY CREEK




                                                                                                                                                                                                                                                                        FLOOD PROFILES
                              480                                                                                                                                                                                                                            480




                                                                                                                                                                                                                                                                                                                         TRIBUTARY NO 3
                              470                                                                                                                                                                                                                            470
ELEVATION IN FEET (NAVD 88)




                              460                                                                                                                                                                                                                            460




                              450                                                                                                                                                                                                                            450


                                                                                                                CULVERT




                                                                                                                                                                                                                                                                   FEDERAL EMERGENCY MANAGEMENT AGENCY
                              440                                                                                                                                                                                                                            440




                                                                                                                                                                                                                                                                                                         WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                             AND INCORPORATED AREAS
                                                                                                                                                                                                                           E

                              430                                                                                                                                                                                                                            430
                                                                                                                                                                                                                                LEGEND
                                                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                             NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE BACKWATER EFFECTS FROM LITTLE TONOLOWAY CREEK/POTOMAC RIVER UNKNOWN                                           1% ANNUAL CHANCE FLOOD
                                                                             NOTE: 0.2%, 2% AND 10% ANNUAL CHANCE PROFILE NOT SHOWN IN POTENTIAL BACKWATER AREA                                                                  2% ANNUAL CHANCE FLOOD
                              420
                                                                             NOTE: 1% ANNUAL CHANCE BACKWATER EFFECTS SHOWN FROM LITTLE TONOLOWAY CREEK ARE FROM THE APPROXIMATE MODEL                                           10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 STREAM BED
                                                                                                                                A                      B            C                                         D                  CROSS SECTION LOCATION

                              410
                                    0                                              200                         400        600       800         1000                    1200   1400      1600          1800       2000   2200            2400             2600

                                                                                                                                     STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE TONOLOWAY CREEK
                                                                                                                                                                                                                                                                                                         52P
                              560                                                                                                                                                         560




                              550                                                                                                                                                         550




                                                                                                                LIMIT OF STUDY




                                                                                                                                                                                                     FLOOD PROFILES
                              540                                                                                                                                                         540




                                                                                                                                                                                                                                                      TRIBUTARY NO 3
                              530                                                                                                                                                         530
ELEVATION IN FEET (NAVD 88)




                              520                                                                                                                                                         520




                              510                                                                                                                                                         510




                                                                                                                                                                                                FEDERAL EMERGENCY MANAGEMENT AGENCY
                              500                                                                                                                                                         500




                                                                                                                                                                                                                                      WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                          AND INCORPORATED AREAS
                              490                                                                                                                                                         490
                                                                                                                                                             LEGEND
                                                                                                                                                              0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                              1% ANNUAL CHANCE FLOOD
                                                                                                                                                              2% ANNUAL CHANCE FLOOD
                              480
                                                                                                                                                              10% ANNUAL CHANCE FLOOD
                                                                                                                                                              STREAM BED
                                       F                    G                                                               H                                 CROSS SECTION LOCATION

                              470
                                2600   2800   3000   3200       3400         3600          3800          4000                    4200   4400   4600   4800            5000             5200

                                                                  STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE TONOLOWAY CREEK
                                                                                                                                                                                                                                      53P
                              430                                                                                                                                                                                                                                                                430
                                                                                                           1% ANNUAL CHANCE BACKWATER EFFECTS FROM CONOCOCHEAGUE CREEK/POTOMAC RIVER




                                                                                                                                                                              GREENCASTLE PIKE\STATE ROUTE 63
                              420                                                                                                                                                                                                                                                                420
                                                KEMPS MILL ROAD




                                                                                                                                                         ROCK HILL ROAD
                                                                                                                                                                                                                                                           CULVERT




                                                                                                                                                                                                                                                                                                            FLOOD PROFILES
                              410                                                                                                                                                                                                                                                                410




                                                                                                                                                                                                                                                                                                                                                             TRIBUTARY NO 29
                                    CONFLUENCE WITH CONOCOCHEAGUE CREEK




                              400                                                                                                                                                                                                                                                                400
ELEVATION IN FEET (NAVD 88)




                                                                                                                                                                                                                                                                        INTERSTATE ROUTE 70
                              390                                                                                                                                                                                                                                                                390
                                                                                                                                                                     CULVERT




                              380                                                                                                                                                                                                                                                                380




                                                                                                                                                                                                                                                                                                       FEDERAL EMERGENCY MANAGEMENT AGENCY
                              370                                                                                                                                                                                                                                                                370




                                                                                                                                                                                                                                                                                                                                             WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                                                                                                                                                                                                                                                F                 G

                              360                                                                                                                                                                                                                                                                360
                                                                                                                                                                                                                                                           LEGEND
                                                                          CULVERT                                                                                                                                                                            0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                             1% ANNUAL CHANCE FLOOD
                                                                                                 NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE BACKWATER EFFECTS FROM CONOCOCHEAGUE CREEK/POTOMAC RIVER UNKNOWN                                                      2% ANNUAL CHANCE FLOOD
                              350
                                                                           NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE PROFILE NOT SHOWN IN POTENTIAL BACKWATER AREA                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                             STREAM BED
                                                                                                           A                 B                                            C                                            D           E                         CROSS SECTION LOCATION

                              340
                                    0                                          400           800           1200           1600          2000          2400                                                      2800       3200   3600   4000       4400              4800                    5200

                                                                                                                             STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                                                                             54P
                              470                                                                                                                                                                                                                  470




                                                                                                                                                                             CONFLUENCE OF TRIBUTARY NO 29A
                                                                                          CONFLUENCE OF TRIBUTARY NO 31
                              460                                                                                                                                                                                                                  460




                                                                PRIVATE DRIVE




                                                                                                                                                       PRIVATE DRIVE




                                                                                                                                                                                                                                                              FLOOD PROFILES
                              450                                                                                                                                                                                                                  450




                                                                                                                                                                                                                                                                                                               TRIBUTARY NO 29
                              440                                                                                                                                                                                                                  440
ELEVATION IN FEET (NAVD 88)




                              430                                                                                                                                                                                                                  430




                              420                                                                                                                                                                                                                  420




                                                                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              410                                                                                                                                                                                                                  410




                                                                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                                                                                                                                                                                                                     M

                              400                                                                                                                                                                                                                  400
                                                                                                                                                                                                                     LEGEND
                                                                                                                                                                                                                      0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                      1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                      2% ANNUAL CHANCE FLOOD
                              390
                                                                                                                                                                                                                      10% ANNUAL CHANCE FLOOD
                                                                                                                                                                       L
                                                                                                                                                                                                                      STREAM BED
                                       H                        I                J                                                                            K                                                       CROSS SECTION LOCATION

                              380
                                5200       5600   6000   6400         6800                7200                            7600   8000   8400    8800                       9200                               9600            10000            10400

                                                                                STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                               55P
                              490                                                                                                                                                                                                                                                                  490




                                                                                                                     CONFLUENCE OF TRIBUTARY NO 29B
                                                            CONFLUENCE OF TRIBUTARY NO 30




                                                                                                                                                                                                                               NATIONAL PIKE/US ROUTE 40
                                                                                                                                                                                                                                                           LIMIT OF DETAILED STUDY
                              480                                                                                                                                                                                                                                                                  480




                                                                                                                                                      RYELAND LANE




                                                                                                                                                                                                                                                                                                              FLOOD PROFILES
                              470                                                                                                                                                                                                                                                                  470




                                                                                                                                                                                                                                                                                                                                                               TRIBUTARY NO 29
                              460                                                                                                                                                                                                                                                                  460
                                                                                                                                                                                                                                                                                     CULVERT
ELEVATION IN FEET (NAVD 88)




                              450                                                                                                                                                                                                                                                                  450




                              440                                                                                                                                                                                                                                                                  440


                                                                                                                                                                         CULVERT




                                                                                                                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              430                                                                                                                                                                                                                                                                  430




                                                                                                                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                                                                                                                                                                                                                                                           R

                              420                                                                                                                                                                                                                                                                  420
                                                                                                                                                                                                                                           LEGEND
                                                                                                                                                                                                                                                           0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                           1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                           2% ANNUAL CHANCE FLOOD
                              410
                                                                                                                                                                                                                                                           10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                           STREAM BED
                                                        N                                                   O                                                        P                             Q                                                       CROSS SECTION LOCATION

                              400
                                10400   10800   11200                                       11600   12000       12400                                      12800                   13200   13600       14000   14400   14800                                                          15200    15600

                                                                                                       STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                                                                               56P
                              455                                                                                                                                                                                                                          455
                                                                      1% ANNUAL CHANCE BACKWATER EFFECTS FROM TRIBUTARY NO 29




                              450                                                                                                                                                                                                                          450




                                                                                                                                                                                                                                                                      FLOOD PROFILES
                                                                                                                                                                                                                                                                                                                       TRIBUTARY NO 29 A
                              445                                                                                                                                                                                                                          445
                                    CONFLUENCE WITH TRIBUTARY NO 29




                              440                                                                                                                                                                                                                          440
ELEVATION IN FEET (NAVD 88)




                              435                                                                                                                                                                                                                          435




                                                                                                                                                                               LIMIT OF DETAILED STUDY
                              430                                                                                                                                                                                                                          430




                                                                                                                                                                                                                                                                 FEDERAL EMERGENCY MANAGEMENT AGENCY
                              425                                                                                                                                                                                                                          425




                                                                                                                                                                                                                                                                                                       WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                           AND INCORPORATED AREAS
                              420                                                                                                                                                                                                                          420
                                                                                                                                                                                                                              LEGEND
                                                                                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              415
                                                                                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                               STREAM BED
                                                                             A                                                                    B                                               C                            CROSS SECTION LOCATION

                              410
                                    0                                  200           400           600          800             1000       1200          1400          1600                              1800   2000   2200            2400             2600

                                                                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                                                       57P
                              500                                                                                                                                                                                                                 500
                                                                          1% ANNUAL CHANCE BACKWATER EFFECTS FROM TRIBUTARY NO 29




                              490                                                                                                                                                                                                                 490




                                                                                                                                                                                             LIMIT OF STUDY
                                    CONFLUENCE OF TRIBUTARY NO 29




                                                                                                                                                                                                                                                             FLOOD PROFILES
                                                                                                                                                                                                                                                                                                              TRIBUTARY NO 29 B
                              480                                                                                                                                                                                                                 480




                              470                                                                                                                                                                                                                 470
ELEVATION IN FEET (NAVD 88)




                              460                                                                                                                                                                                                                 460




                              450                                                                                                                                                                                                                 450




                                                                                                                                                                                                                                                        FEDERAL EMERGENCY MANAGEMENT AGENCY
                              440                                                                                                                                                                                                                 440




                                                                                                                                                                                                                                                                                              WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                  AND INCORPORATED AREAS
                                                                                                                                                                                                         C

                              430                                                                                                                                                                                                                 430
                                                                                                                                                                                                                     LEGEND
                                                                                                                                                                                                                      0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                      1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                      2% ANNUAL CHANCE FLOOD
                              420
                                                                                                                                                                                                                      10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                      STREAM BED
                                                                                          A                                                                                   B                                       CROSS SECTION LOCATION

                              410
                                    0                               200             400           600           800          1000          1200          1400          1600           1800           2000     2200            2400             2600

                                                                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                                              58P
                              500                                                                                                                                                                                                       500
                                                                      1% ANNUAL CHANCE BACKWATER EFFECTS FROM TRIBUTARY NO 29




                              490                                                                                                                                                                                                       490




                                                                                                                                                                                                                                                   FLOOD PROFILES
                              480                                                                                                                                                                                                       480




                                                                                                                                                                                                                                                                                                    TRIBUTARY NO 30
                                    CONFLUENCE WITH TRIBUTARY NO 29




                              470                                                                                                                                                                                                       470
ELEVATION IN FEET (NAVD 88)




                              460                                                                                                                                                                                                       460




                              450                                                                                                                                                                                                       450




                                                                                                                                                                                                                                              FEDERAL EMERGENCY MANAGEMENT AGENCY
                              440                                                                                                                                                                                                       440




                                                                                                                                                                                                                                                                                    WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                        AND INCORPORATED AREAS
                                                                                                                                                                                                       B

                              430                                                                                                                                                                                                       430
                                                                                                                                                                                                           LEGEND
                                                                                                                                                                                                            0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                            1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                            2% ANNUAL CHANCE FLOOD
                              420
                                                                                                                                                                                                            10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                            STREAM BED
                                                                                                                            A                                                                               CROSS SECTION LOCATION

                              410
                                    0                                  200           400           600          800             1000       1200          1400          1600           1800   2000   2200            2400             2600

                                                                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                                    59P
                              530                                                                                                                                                                                    530




                              520                                                                                                                                                                                    520




                                                 PRIVATE DRIVE




                                                                                                                                                                                                                                FLOOD PROFILES
                              510                                                                                                                                                                                    510




                                                                                                                                                                                                                                                                                 TRIBUTARY NO 30
                                                                                                                                                                  CULVERT



                              500                                                                                                                                                                                    500
ELEVATION IN FEET (NAVD 88)




                              490                                                                                                                                                                                    490




                                                                                                                                                                                              LIMIT OF STUDY
                                                                                                                                                                        PRIVATE DRIVE
                              480                                                                                                                                                                                    480



                                                                 CULVERT




                                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              470                                                                                                                                                                                    470




                                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                     AND INCORPORATED AREAS
                                                                                                                                                                                                          D

                              460                                                                                                                                                                                    460
                                                                                                                                                                                        LEGEND
                                                                                                                                                                                         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                         1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                         2% ANNUAL CHANCE FLOOD
                              450
                                                                                                                                                                                         10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                         STREAM BED
                                                                                                                                                       C                                 CROSS SECTION LOCATION

                              440
                                2600   2800   3000                    3200   3400          3600          3800          4000          4200           4400   4600     4800                              5000        5200

                                                                                    STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                 60P
                              490                                                                                                                                                                                                                   490
                                                                      1% ANNUAL CHANCE BACKWATER EFFECTS FROM TRIBUTARY NO 29




                              480                                                                                                                                                                                                                   480



                                                                                                                                                                                                                              CULVERT




                                                                                                                                                                                                                                                               FLOOD PROFILES
                              470                                                                                                                                                                                                                   470




                                                                                                                                                                                                                                                                                                                TRIBUTARY NO 31
                                    CONFLUENCE WITH TRIBUTARY NO 29




                              460                                                                                                                                                                                                                   460
ELEVATION IN FEET (NAVD 88)




                              450                                                                                                                                                                                                                   450




                                                                                                                                                                                                                                 PRIVATE DRIVE
                              440                                                                                                                                                                                                                   440




                                                                                                                                                                                                                                                          FEDERAL EMERGENCY MANAGEMENT AGENCY
                              430                                                                                                                                                                                                                   430




                                                                                                                                                                                                                                                                                                WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                    AND INCORPORATED AREAS
                                                                                                                                                                                                          C

                              420                                                                                                                                                                                                                   420
                                                                                                                                                                                                              LEGEND
                                                                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              410
                                                                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                               STREAM BED
                                                                                                            A                                        B                                                         CROSS SECTION LOCATION

                              400
                                    0                                    400           800          1200          1600          2000          2400          2800          3200           3600   4000   4400            4800                      5200

                                                                                                                         STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                                                61P
                              540                                                                                                                                                                                                    540




                                                     HALFWAY BOULEVARD
                              530                                                                                                                                                                                                    530




                                                                                                                          PRIVATE DRIVE




                                                                                                                                                               PRIVATE DRIVE




                                                                                                                                                                                                                                                FLOOD PROFILES
                              520                                                                                                                                                                                                    520




                                                                                                                                                                                                                                                                                                 TRIBUTARY NO 31
                              510                                                                                                                                                                                                    510
ELEVATION IN FEET (NAVD 88)




                              500                                                                                                                                                                                                    500

                                              CULVERT
                                                                                                                                                                               CULVERT
                                                                                                                                          CULVERT
                              490                                                                                                                                                                                                    490




                                                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              480                                                                                                                                                                                                    480




                                                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                     AND INCORPORATED AREAS
                                                                                                                                                                                                                        F

                              470                                                                                                                                                                                                    470
                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              460
                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        STREAM BED
                                                D                                                                                                          E                                            CROSS SECTION LOCATION

                              450
                                5200   5600   6000                       6400   6800          7200          7600          8000                      8400            8800                 9200   9600            10000            10400

                                                                                       STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                                 62P
                              570                                                                                                                                                                                        570




                                                                                                                             LIMIT OF DETAILED STUDY
                              560                                                                                                                                                                                        560




                                                                                           PRIVATE DRIVE




                                                                                                                                                                                                                                    FLOOD PROFILES
                              550                                                                                                                                                                                        550




                                                                                                                                                                                                                                                                                     TRIBUTARY NO 31
                              540                                                                                                                                                                                        540
ELEVATION IN FEET (NAVD 88)




                              530                                                                                                                                                                                        530


                                                                                                                                                       CULVERT

                              520                                                                                                                                                                                        520

                                                                                  CULVERT




                                                                                                                                                                                                                               FEDERAL EMERGENCY MANAGEMENT AGENCY
                              510                                                                                                                                                                                        510




                                                                                                                       HOPEWELL ROAD




                                                                                                                                                                                                                                                                     WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                         AND INCORPORATED AREAS
                              500                                                                                                                                                                                        500
                                                                                                                                                                                           LEGEND
                                                                                                                                                                                            0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            2% ANNUAL CHANCE FLOOD
                              490
                                                                                                                                                                                            10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                            STREAM BED
                                                                G                                                                                H                                          CROSS SECTION LOCATION

                              480
                                10400   10800   11200   11600       12000          12400                   12800   13200                                   13600   14000   14400   14800            15200            15600

                                                                            STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 29
                                                                                                                                                                                                                                                                     63P
                              410                                                                                                                                                                                                                  410
                                                                                                                                   1% ANNUAL CHANCE BACKWATER EFFECTS FROM CONCOCHEAGUE CREEK/POTOMAC RIVER




                                    CONFLUENCE WITH CONOCOCHEAGUE CREEK
                              400                                                                                                                                                                                                                  400




                                                                                                                                                                                                                                                              FLOOD PROFILES
                              390                                                                                                                                                                                                                  390




                                                                                                                                                                                                                                                                                                               TRIBUTARY NO 33
                              380                                                                                                                                                                                                                  380
ELEVATION IN FEET (NAVD 88)




                              370                                                                                                                                                                                                                  370




                              360                                                                                                                                                                                                                  360




                                                                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              350                                                                                                                                                                                                                  350




                                                                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                                                                                                                                                                                                                                        C

                              340                                                                                                                                                                                                                  340
                                                                                                                                                                                                                      LEGEND
                                                                                                                                                                                                                       0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                       1% ANNUAL CHANCE FLOOD
                                                                          NOTE: 0.2%, 2%, AND 10% ANNUAL CHANCE BACKWATER EFFECTS FROM CONOCOCHEAGUE CREEK/POTOMAC RIVER UNKNOWN
                                                                                                                                                                                                                       2% ANNUAL CHANCE FLOOD
                              330
                                                                                                                                                                                                                       10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                       STREAM BED
                                                                            A                                                                                B                                                         CROSS SECTION LOCATION

                              320
                                    0                                           200         400           600           800          1000          1200          1400         1600         1800         2000   2200            2400             2600

                                                                                                                          STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                               64P
                              460                                                                                                                                                                                                                      460




                                                                                             GREENCASTLE PIKE/STATE ROUTE 63
                              450                                                                                                                                                                                                                      450
                                    CELESTE DRIVE




                                                                           RAILROAD




                                                                                                                                                                                                                                                                  FLOOD PROFILES
                              440                                                                                                                                                                                                                      440




                                                                                                                                                                                                                                                                                                                   TRIBUTARY NO 33
                                                                                                                                      CULVERT
                              430                                                                                                                                                                                                                      430
ELEVATION IN FEET (NAVD 88)




                              420                                                                                                                                                                                                                      420




                              410                                                                                                                                                                                                                      410
                                                                 CULVERT




                                                                                                                                                                                                                                                             FEDERAL EMERGENCY MANAGEMENT AGENCY
                              400                                                                                                                                                                                                                      400




                                                                                                                                                                                                                                                                                                   WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                       AND INCORPORATED AREAS
                                                    CULVERT                                                                                                                                                    F

                              390                                                                                                                                                                                                                      390
                                                                                                                                                                                                                          LEGEND
                                                                                                                                                                                                                           0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                           1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                           2% ANNUAL CHANCE FLOOD
                              380
                                                                                                                                                                                                                           10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                           STREAM BED
                                                                       D                                                                 E                                                                                 CROSS SECTION LOCATION

                              370
                                2600                     2800   3000                  3200                                     3400          3600       3800          4000         4200          4400   4600       4800            5000             5200

                                                                                                                                 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                                   65P
                              470                                                                                                                                                                                                               470




                                       CONFLUENCE OF SEMPLE RUN
                              460                                                                                                                                                                                                               460




                                                                             PRIVATE DRIVE




                                                                                                                                                                          PRIVATE DRIVE




                                                                                                                                                                                                                                                           FLOOD PROFILES
                              450                                                                                                                                                                                                               450




                                                                                                                                                                                                                                                                                                            TRIBUTARY NO 33
                              440                                                                                                                                                                                                               440
ELEVATION IN FEET (NAVD 88)




                              430                                                                                                                                                                                                               430




                              420                                                                                                                                                                                                               420




                                                                                                                                                                                                                                                      FEDERAL EMERGENCY MANAGEMENT AGENCY
                              410                                                                                                                                                                                                               410




                                                                                                                                                                                                                                                                                            WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                AND INCORPORATED AREAS
                                                                                                                                                                      CULVERT
                              400                                        CULVERT                                                                                                                                                                400
                                                                                                                                                                                                                   LEGEND
                                                                                                                                                                                                                    0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                    1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                    2% ANNUAL CHANCE FLOOD
                              390
                                                                                                                                                                                                                    10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                    STREAM BED
                                                                         G                                                    H                                                                  I                  CROSS SECTION LOCATION

                              380
                                5200                              5400                       5600   5800   6000        6200         6400          6600         6800                       7000       7200   7400            7600             7800

                                                                                                             STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                            66P
                              490                                                                                                                                                                                                                                                               490




                                                                                               INTERSTATE ROUTE 81 RAMP




                                                                                                                                 INTERSTATE ROUTE 81
                              480                                                                                                                                                                                                                                                               480




                                                                              HOPEWELL ROAD
                                                    PRIVATE ROAD




                                                                                                                                                                                                                                                                                                           FLOOD PROFILES
                              470                                                                                                                                                                                                                                                               470




                                                                                                                                                                                                                                                                                                                                                            TRIBUTARY NO 33
                                                                                                                                                                                                  CULVERT
                              460                                                                                                                                                                                                                                                               460
                                                                                                                                                          CULVERT
ELEVATION IN FEET (NAVD 88)




                              450                                                                                                                                                                                                                                                               450




                              440                                                                                                                                                                                                                                                               440




                                                                                                                                                                                                             INTERSTATE ROUTE 81 RAMP




                                                                                                                                                                                                                                                                                                      FEDERAL EMERGENCY MANAGEMENT AGENCY
                                                                                                                             CULVERT
                              430                                                                                                                                                                                                                                                               430




                                                                                                                                                                                                                                                                                                                                            WASHINGTON COUNTY, MD
                                                                                              CULVERT
                                                                   CULVERT




                                                                                                                                                                                                                                                                                                                                                                AND INCORPORATED AREAS
                                                                                                                                                                    VIRGINIA AVENUE/US ROUTE 11
                                              CULVERT
                              420                                                                                                                                                                                                                                                               420
                                                                                                                                                                                                                                                                  LEGEND
                                                                                                                                                                                                                                                                   0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                   1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                   2% ANNUAL CHANCE FLOOD
                              410
                                                                                                                                                                                                                                                                   10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                   STREAM BED
                                        J                          K                                                         L                            M                                              N                                     O                   CROSS SECTION LOCATION

                              400
                                7800   8000     8200                   8400                                         8600                           8800   9000                9200                9400                                  9600       9800   10000            10200            10400

                                                                                                                          STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                                                                            67P
                              520                                                                                                                                                                                                                520




                                        GOVERNOR LANE BOULEVARD




                                                                                                                                                                                      EDWARD DOUB ROAD
                              510                                                                                                                                                                                                                510




                                                                                                                                        PRIVATE DRIVE




                                                                                                                                                                                                                                                            FLOOD PROFILES
                              500                                                                                                                                                                                                                500




                                                                                                                                                                                                                                                                                                             TRIBUTARY NO 33
                              490                                                                                                                                                                                                                490
ELEVATION IN FEET (NAVD 88)




                              480                                                                                                                                                                                                                480
                                                                                                                                                                                                         CULVERT

                                                                                                                                                        CULVERT

                              470                                                                                                                                                                                                                470
                                                                  CULVERT




                                                                                                                                                                                                                                                       FEDERAL EMERGENCY MANAGEMENT AGENCY
                              460                                                                                                                                                                                                                460




                                                                                                                                                                                                                                                                                             WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                                                                                                                                                                                          S               T

                              450                                                                                                                                                                                                                450
                                                                                                                                                                                                                   LEGEND
                                                                                                                                                                                                                    0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                    1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                    2% ANNUAL CHANCE FLOOD
                              440
                                                                                                                                                                                                                    10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                    STREAM BED
                                    P                                     Q                                           R                                                                                             CROSS SECTION LOCATION

                              430
                               10400                              10600       10800   11000   11200       11400           11600      11800                    12000   12200   12400                       12600             12800            13000

                                                                                                 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                                                             68P
                              540                                                                                                                                                           540




                              530                                                                                                                                                           530




                                                                                                   HERSHEY DRIVE




                                                                                                                                                                                                       FLOOD PROFILES
                              520                                                                                                                                                           520




                                                                                                                                                                                                                                                        TRIBUTARY NO 33
                              510                                                                                                                                                           510
ELEVATION IN FEET (NAVD 88)




                              500                                                                                                                                                           500




                              490                                                                                                                                                           490
                                                                                           CULVERT




                                                                                                                                                                                                  FEDERAL EMERGENCY MANAGEMENT AGENCY
                              480                                                                                                                                                           480




                                                                                                                                                                                                                                        WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                            AND INCORPORATED AREAS
                                                                                                                                                           V

                              470                                                                                                                                                           470
                                                                                                                                                           LEGEND
                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              460
                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                               STREAM BED
                                                                                       U                                                                       CROSS SECTION LOCATION

                              450
                               13000   13200   13400   13600   13800       14000           14200                   14400   14600   14800   15000   15200             15400              15600

                                                                  STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                        69P
                              560                                                                                                                                                                     560




                              550                                                                                                                                                                     550




                                                                                                           GREENWICH DRIVE




                                                                                                                               LIMIT OF STUDY




                                                                                                                                                                                                                 FLOOD PROFILES
                              540                                                                                                                                                                     540




                                                                                                                                                                                                                                                                  TRIBUTARY NO 33
                              530                                                                                                                                                                     530
ELEVATION IN FEET (NAVD 88)




                              520                                                                                                                                                                     520




                              510                                                                CULVERT                                                                                              510




                                                                                                                                                                                                            FEDERAL EMERGENCY MANAGEMENT AGENCY
                              500                                                                                                                                                                     500




                                                                                                                                                                                                                                                  WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                      AND INCORPORATED AREAS
                              490                                                                                                                                                                     490
                                                                                                                                                                        LEGEND
                                                                                                                                                                         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                         1% ANNUAL CHANCE FLOOD
                                                                                                                                                                         2% ANNUAL CHANCE FLOOD
                              480
                                                                                                                                                                         10% ANNUAL CHANCE FLOOD
                                                                                                                                                                         STREAM BED
                                                       W                           X                                                       Y                             CROSS SECTION LOCATION

                              470
                               15600   15800   16000       16200   16400       16600         16800                    17000   17200             17400   17600   17800            18000            18200

                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CONOCOCHEAGUE CREEK
                                                                                                                                                                                                                                                  70P
                              510                                                                                                                                                                                                                     510




                                                                                 GOVERNOR LANE BOULEVARD
                                       INTERSTATE ROUTE 81
                              500                                                                                                                                                                                                                     500




                                                                                                                                                                                   LIMIT OF STUDY
                                                                                                                                                RAILROAD




                                                                                                                                                                                                                                                                 FLOOD PROFILES
                              490                                                                                                                                                                                                                     490




                                                                                                                                                                                                                                                                                                                  TRIBUTARY NO 35
                              480                                                                                                                                                                                                                     480
ELEVATION IN FEET (NAVD 88)




                              470                                                                                                                                                                                                                     470



                                                                                                                                                           CULVERT
                              460                                                                                                                                                                                                                     460

                                                             CULVERT    CULVERT




                                                                                                                                                                                                                                                            FEDERAL EMERGENCY MANAGEMENT AGENCY
                              450                                                                                                                                                                                                                     450




                                                                                                                                                                                                                                                                                                  WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                      AND INCORPORATED AREAS
                              440                                                                                                                                                                                                                     440
                                                                                                                                                                                                                         LEGEND
                                                                                                                                                                                                                          0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                          1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                          2% ANNUAL CHANCE FLOOD
                              430
                                                                                                                                                                                                                          10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                          STREAM BED
                                                             A               B                             C                  D             E              F                                   G                          CROSS SECTION LOCATION

                              420
                                -200                             200   600                                     1000   1400        1800          2200                 2600   3000                    3400   3800   4200            4600             5000

                                                                                                                             STREAM DISTANCE IN FEET ABOVE INTERSTATE 81 CENTER MEDIAN
                                                                                                                                                                                                                                                                                                  71P
                              490                                                                                                                                                                                                                                                                                        490




                                                                                                                                                                             GOVERNOR LANE BOULEVARD
                                        LIMIT OF DETAILED STUDY



                                                                      SOUTH ARTIZAN STREET




                                                                                                                      INTERSTATE ROUTE 81
                              480                                                                                                                                                                                                                                                                                        480




                                                                                                                                                                                                                                                                   PROSPERITY LANE
                                                                                                                                                                                                       PRIVATE DRIVE




                                                                                                                                                                                                                                   RAILROAD
                                                                                                                                             DAM




                                                                                                                                                                                                                                                                                                                                    FLOOD PROFILES
                              470                                                                                                                                                                                                                                                                                        470




                                                                                                                                                                                                                                                                                                                                                                                     TRIBUTARY NO 36
                              460                                                                                                                                                                                                                                                                                        460
ELEVATION IN FEET (NAVD 88)




                                                                                                            CULVERT                                                                                                                           CULVERT
                                                                                                                                                                                                                                                              CULVERT
                              450                                                                                                                                                                                                                                                                                        450


                                                                                                                                                                       CULVERT

                              440                                                                                                                                                                                      CULVERT                                                                                           440




                                                                                                                                                                                                                                                                                                                               FEDERAL EMERGENCY MANAGEMENT AGENCY
                              430                                                                                                                                                                                                                                                                                        430




                                                                                                                                                                                                                                                                                                                                                                     WASHINGTON COUNTY, MD
                                                                  CULVERT




                                                                                                                                                                                                                                                                                                                                                                                         AND INCORPORATED AREAS
                                                                                                                                                                                                                                                                           J                         K

                              420                                                                                                                                                                                                                                                                                        420
                                                                                                                                                                                                                                                                                            LEGEND
                                                                                                                                                                                                                                                                                             0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                                             1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                                             2% ANNUAL CHANCE FLOOD
                              410
                                                                                                                                                                                                                                                                                             10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                             G
                                                                                                                                                                                                                                                                                             STREAM BED
                                    A                                                        B          C         D                                E                                     F                                           H                    I                                  CROSS SECTION LOCATION

                              400
                                3000                                3400                         3800   4200           4600                            5000     5400                            5800                             6200              6600          7000                7400                7800         8200

                                                                                                                                            STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                                                                                                                     72P
                              520                                                                                                                                                                                             520




                              510                                                                                                                                                                                             510




                                                                                                           LIMIT OF STUDY
                                                     PRIVATE DRIVE


                                                                            PRIVATE DRIVE




                                                                                                            KENDLE ROAD
                                    DAM




                                                                                                                                                                                                                                         FLOOD PROFILES
                              500                                                                                                                                                                                             500




                                                                                                                                                                                                                                                                                          TRIBUTARY NO 36
                              490                                                                                                                                                                                             490
ELEVATION IN FEET (NAVD 88)




                              480                                                                                                                                                                                             480



                                                                                                    CULVERT
                              470                                                                                                                                                                                             470
                                                                       CULVERT
                                                  CULVERT




                                                                                                                                                                                                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY
                              460                                                                                                                                                                                             460




                                                                                                                                                                                                                                                                          WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                              AND INCORPORATED AREAS
                              450                                                                                                                                                                                             450
                                                                                                                                                                                                LEGEND
                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              440
                                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                        P
                                                                                                                                                                                                 STREAM BED
                                       L                    M                       N                         O                                                                                  CROSS SECTION LOCATION

                              430
                                8200       8600                      9000                   9400   9800                10200   10600       11000         11400          11800   12200   12600            13000            13400

                                                                                                          STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH POTOMAC RIVER
                                                                                                                                                                                                                                                                          73P
                              560                                                                                                                                                                                                                            560
                                                                                     1% ANNUAL CHANCE BACKWATER EFFECTS FROM ANTIETAM CREEK




                                                                                                                                                TROVINGER MILL ROAD
                              550                                                                                                                                                                                                                            550




                                                                                                                                                                                                                   PARKING LOT
                                                                                                                                                                                      RAILROAD




                                                                                                                                                                                                                                                                        FLOOD PROFILES
                              540                                                                                                                                                                                                                            540




                                                                                                                                                                                                                                                                                                                         TRIBUTARY NO 67
                                    CONFLUENCE WITH ANTIETAM CREEK




                              530                                                                                                                                                                                                                            530
ELEVATION IN FEET (NAVD 88)




                                                                                                                                                                                 CULVERT
                              520                                                                                                                                                                                                                            520




                              510                                                                                                                                                                                                                            510

                                                                                                                                                                                                            CULVERT
                                                                                                                                           CULVERT




                                                                                                                                                                                                                                                                   FEDERAL EMERGENCY MANAGEMENT AGENCY
                              500                                                                                                                                                                                                                            500




                                                                                                                                                                                                                                                                                                         WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                             AND INCORPORATED AREAS
                              490                                                                                                                                                                                                                            490
                                                                                                                                                                                                                         LEGEND
                                                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              480
                                                                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 STREAM BED
                                                                     A                              B                                                           C     D                 E        F                               CROSS SECTION LOCATION

                              470
                                    0                                    400   800         1200         1600          2000          2400                2800              3200      3600             4000   4400                        4800              5200

                                                                                                               STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                         74P
                              570                                                                                                                                                                                                                      570




                                    JEFFERSON BOULEVARD/STATE ROUTE 64




                                                                                                                                                                   LIMIT OF DETAILED STUDY
                              560                                                                                                                                                                                                                      560




                                                                                      PRIVATE DRIVE




                                                                                                                                                                                                                                                                  FLOOD PROFILES
                              550                                                                                                                                                                                                                      550




                                                                                                                                                                                                                                                                                                                   TRIBUTARY NO 67
                              540                                                                                                                                                                                                                      540
ELEVATION IN FEET (NAVD 88)




                              530                                                                                                                                                                                                                      530




                              520                                                                                                                                                                                                                      520




                                                                                                                                                                                                                                                             FEDERAL EMERGENCY MANAGEMENT AGENCY
                              510                                                                                                                                                                                                                      510




                                                                                                                                                                                                                                                                                                   WASHINGTON COUNTY, MD
                                                                     CULVERT
                                                                                                      CULVERT




                                                                                                                                                                                                                                                                                                                       AND INCORPORATED AREAS
                              500                                                                                                                                                                                                                      500
                                                                                                                                                                                                                         LEGEND
                                                                                                                                                                                                                          0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                          1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                          2% ANNUAL CHANCE FLOOD
                              490
                                                                                                                                                                                                                          10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                          STREAM BED
                                             G                            H                    I           J                                                                           K                                  CROSS SECTION LOCATION

                              480
                                5200                                           5600   6000                      6400   6800          7200          7600         8000                         8400   8800   9200   9600            10000            10400

                                                                                                                              STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                   75P
                              625                                                                                                                                                                                                         625
                                                                  1% ANNUAL CHANCE BACKWATER EFFECTS FROM WEST BRANCH




                              620                                                                                                                                                                                                         620




                                                                                                                                                                                             PRIVATE DRIVE




                                                                                                                                                                                                                                                     FLOOD PROFILES
                              615                                                                                                                                                                                                         615




                                                                                                                                                                                                                                                                                                      TRIBUTARY NO 73
                                    CONFLUENCE WITH WEST BRANCH




                              610                                                                                                                                                                                                         610
ELEVATION IN FEET (NAVD 88)




                              605                                                                                                                                                                                                         605




                              600                                                                                                                                                                                                         600




                                                                                                                                                                                                                                                FEDERAL EMERGENCY MANAGEMENT AGENCY
                              595                                                                                                                                                                                                         595




                                                                                                                                                                                                                                                                                      WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                          AND INCORPORATED AREAS
                                                                                                                                                                                                                 E

                              590                                                                                                                                                                                                         590
                                                                                                                                                                                                             LEGEND
                                                                                                                                                                                                              0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                              1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                              2% ANNUAL CHANCE FLOOD
                              585
                                                                                                                                                                                                              10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                              STREAM BED
                                                                        A                           B                               C                                  D                                      CROSS SECTION LOCATION

                              580
                                    0                             400           800          1200         1600          2000        2400          2800         3200          3600   4000   4400                       4800             5200

                                                                                                                 STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH WEST BRANCH
                                                                                                                                                                                                                                                                                      76P
                              640                                                                                                                                                                  640




                              635                                                                                                                                                                  635




                                                            LIMIT OF STUDY




                                                                                                                                                                                                              FLOOD PROFILES
                              630                                                                                                                                                                  630




                                                                                                                                                                                                                                                               TRIBUTARY NO 73
                              625                                                                                                                                                                  625
ELEVATION IN FEET (NAVD 88)




                              620                                                                                                                                                                  620




                              615                                                                                                                                                                  615




                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              610                                                                                                                                                                  610




                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                              605                                                                                                                                                                  605
                                                                                                                                                                     LEGEND
                                                                                                                                                                      0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                      1% ANNUAL CHANCE FLOOD
                                                                                                                                                                      2% ANNUAL CHANCE FLOOD
                              600
                                                                                                                                                                      10% ANNUAL CHANCE FLOOD
                                                                                                                                                                      STREAM BED
                                                                        F                                                                                             CROSS SECTION LOCATION

                              595
                                5200   5600   6000   6400                    6800         7200         7600          8000         8400          8800   9200   9600            10000            10400

                                                                                    STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH WEST BRANCH
                                                                                                                                                                                                                                               77P
                              600                                                                                                                                                                                                                                                                                      600




                                                                                                                                                                                                                                                                        LEITERSBURG PIKE/STATE ROUTE 60
                              590                                                                                                                                                                                                                                                                                      590




                                                                                                                                               PRIVATE DRIVE




                                                                                                                                                                                 PRIVATE DRIVE



                                                                                                                                                                                                        PRIVATE DRIVE

                                                                                                                                                                                                                               PRIVATE DRIVE
                                                PRIVATE DRIVE




                                                                                                                                                                                                                                                                                                                                  FLOOD PROFILES
                              580                                                                                                                                                                                                                                                                                      580




                                                                                                                                                                                                                                                                                                                                                                                   TRIBUTARY NO 75
                              570                                                                                                                                                                                                                                                                                      570
                                        CONFLUENCE WITH MARSH RUN I
ELEVATION IN FEET (NAVD 88)




                              560                                                                                                                                                                                                                                                                                      560




                              550                                                                                                                                                                                                                                                                                      550
                                                                                                                                                                                                                                                                                                          CULVERT
                                                                                                                                                                                                                                                  CULVERT
                                                                                                                                                                                                 CULVERT
                                                                                                                                                                            CULVERT
                                                                                                                                                               CULVERT




                                                                                                                                                                                                                                                                                                                             FEDERAL EMERGENCY MANAGEMENT AGENCY
                                                                                                                                                                                                                               CULVERT
                              540                                                                                                                                                                                                                                                                                      540




                                                                                                                                                                                                                                                                                                                                                                   WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                                       AND INCORPORATED AREAS
                                                                                                                                                                                                                                                                   J                                      K

                              530                                     CULVERT                                                                                                                                                                                                                                          530




                                                                                                                                                                                                               PRIVATE DRIVE
                                                                                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              520
                                                                                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                        STREAM BED
                                                                          A                  B                 C                       D                       E             F            G         H                                     I                             CROSS SECTION LOCATION

                              510
                                    0                                           500   1000       1500   2000            2500          3000                         3500   4000                   4500                                          5000         5500                                          6000      6500

                                                                                                                   STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MARSH RUN I
                                                                                                                                                                                                                                                                                                                                                                   78P
                              620                                                                                                                                                                                                                                620




                                                                                                                                                                                                         LIMIT OF DETAILED STUDY
                              610                                                                                                                                                                                                                                610
                                    PRIVATE DRIVE




                                                                       PRIVATE DRIVE




                                                                                                                                                                            PRIVATE DRIVE




                                                                                                                                                                                                                                                                            FLOOD PROFILES
                              600                                                                                                                                                                                                                                600




                                                                                                                                                                                                                                                                                                                             TRIBUTARY NO 75
                              590                                                                                                                                                                                                                                590
ELEVATION IN FEET (NAVD 88)




                              580                                                                                                                                                                                                                                580




                              570                                                                                                                                                                                                                                570




                                                                                                                                                                                                                                                                       FEDERAL EMERGENCY MANAGEMENT AGENCY
                                                                                                                                                                                            CULVERT
                              560                                                                                                                                                                                                                                560




                                                                                                                                                                                                                                                                                                             WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                 AND INCORPORATED AREAS
                                                                                                                                                                                                                            N

                              550          CULVERT                                                                                                                                                                                                               550
                                                                                       CULVERT                                                                                                                                     LEGEND
                                                                                                                                                                                                                                    0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                    1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                    2% ANNUAL CHANCE FLOOD
                              540
                                                                                                                                                                                                                                    10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                    STREAM BED
                                                            L                                       M                                                                                                                               CROSS SECTION LOCATION

                              530
                                6500                 7000       7500                     8000    8500        9000          9500         10000         10500         11000   11500                     12000                                 12500            13000

                                                                                                        STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MARSH RUN I
                                                                                                                                                                                                                                                                                                             79P
                              590                                                                                                                                                                                                            590
                                                                                   FLOODING CONTROLED BY HAMILTON RUN




                                           EASTERN BOULEVARD
                              580                                                                                                                                                                                                            580




                                                                                                                              CORTLAND DRIVE




                                                                                                                                                                                                                                                        FLOOD PROFILES
                              570                                                                                                                                                                                                            570




                                                                                                                                                                                                                                                                                                         TRIBUTARY NO 76
                                                                                                                                                                                          CULVERT

                              560                                                                                                                                                                                                            560
ELEVATION IN FEET (NAVD 88)




                              550                                                                                                                                                                                                            550




                                                                                                                                                                                                    LEITERSBURG PIKE
                                                                                                                        CULVERT


                              540                                                                                                                                                                                                            540




                                                                                                                                                                                                                                                   FEDERAL EMERGENCY MANAGEMENT AGENCY
                              530                                                                                                                                                                                                            530
                                                               CULVERT




                                                                                                                                                                                                                                                                                         WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                             AND INCORPORATED AREAS
                                                                                                                                                                                              H                        I

                              520                                                                                                                                                                                                            520
                                                                                                                                                                                                         LEGEND
                                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              510
                                                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                 STREAM BED
                                       A          B                C           D                   E                                                  F                 G                                        CROSS SECTION LOCATION

                              500
                                -500                     0               500          1000          1500          2000                         2500       3000   3500       4000   4500     5000                           5500           6000

                                                                                                                 STREAM DISTANCE IN FEET ABOVE EASTERN BOULEVARD
                                                                                                                                                                                                                                                                                         80P
                              630                                                                                                                                                                                                                    630




                              620                                                                                                                                                                                                                    620




                                                                                                                                                         GLENDALE DRIVE




                                                                                                                                                                              LIMIT OF STUDY
                                                                                                                     PRIVATE DRIVE
                                            MARSH PIKE




                                                                                             RAILROAD




                                                                                                                                                                                                                                                                FLOOD PROFILES
                              610                                                                                                                                                                                                                    610




                                                                                                                                                                                                                                                                                                                 TRIBUTARY NO 76
                              600                                                                                                                                                                                                                    600
                                                                                                                                                   CULVERT
ELEVATION IN FEET (NAVD 88)




                              590                                                      CULVERT                                                                                                                                                       590

                                                                                                                                         CULVERT


                              580                                                                                                                                                                                                                    580




                                                                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              570      CULVERT                                                                                                                                                                                                       570




                                                                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                     AND INCORPORATED AREAS
                              560                                                                                                                                                                                                                    560
                                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              550
                                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                          T
                                                                                                                                                                                                                        STREAM BED
                                             J              K          L          M          N          O                            P                       Q            R       S                                     CROSS SECTION LOCATION

                              540
                                6000                     6500   7000       7500       8000                   8500                        9000           9500                  10000            10500   11000   11500            12000            12500

                                                                                                            STREAM DISTANCE IN FEET ABOVE EASTERN BOULEVARD
                                                                                                                                                                                                                                                                                                 81P
                              550                                                                                                                                                                                                                             550




                                                                             BEAVER CREEK ROAD
                              540                                                                                                                                                                                                                             540
                                    LIMIT OF STUDY




                                                                                                                          CONFLUENCE OF TRIBUTARY NO 79
                                                                                                                                                                                                        CULVERT




                                                                                                                                                                                                                                                                         FLOOD PROFILES
                              530                                                                                                                                                                                                                             530




                                                                                                                                                                                                                                                                                                                          TRIBUTARY NO 78
                              520                                                                                                                                                                                                                             520
ELEVATION IN FEET (NAVD 88)




                              510                                                                                                                                                                                                                             510




                                                                                                                                                                                                                  DUAL HIGHWAY
                                                                                                                                                                      CULVERT
                              500                                                                                                                                                                                                                             500
                                                                   CULVERT




                                                                                                                                                                                                                                                                    FEDERAL EMERGENCY MANAGEMENT AGENCY
                              490                                                                                                                                                                                                                             490




                                                                                                                                                                                                                                                                                                          WASHINGTON COUNTY, MD
                                                                                                                                                          HEBB ROAD




                                                                                                                                                                                                                                                                                                                              AND INCORPORATED AREAS
                                                                                                                                                                                                                  G                            H

                              480                                                                                                                                                                                                                             480
                                                                                                                                                                                                                                 LEGEND
                                                                                                                                                                                                                                  0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                  1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                  2% ANNUAL CHANCE FLOOD
                              470
                                                                                                                                                                                                                                  10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                  STREAM BED
                                               A            B                                    C          D                                                                   E             F                                   CROSS SECTION LOCATION

                              460
                                3300                 3700   4100       4500                          4900          5300                                         5700            6100   6500   6900   7300         7700                    8100             8500

                                                                                                            STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                          82P
                              590                                                                                                                                                               590




                              580                                                                                                                                                               580




                                                                        LIMIT OF STUDY




                                                                                                                                                                                                           FLOOD PROFILES
                              570                                                                                                                                                               570




                                                                                                                                                                                                                                                            TRIBUTARY NO 78
                              560                                                                                                                                                               560
ELEVATION IN FEET (NAVD 88)




                              550                                                                                                                                                               550




                              540                                                                                                                                                               540




                                                                                                                                                                                                      FEDERAL EMERGENCY MANAGEMENT AGENCY
                              530                                                                                                                                                               530




                                                                                                                                                                                                                                            WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                AND INCORPORATED AREAS
                              520                                                                                                                                                               520
                                                                                                                                                                  LEGEND
                                                                                                                                                                   0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                   1% ANNUAL CHANCE FLOOD
                                                                                                                                                                   2% ANNUAL CHANCE FLOOD
                              510
                                                                                                                                                                   10% ANNUAL CHANCE FLOOD
                                                                                                                                                                   STREAM BED
                                         I           J                              K                                                                              CROSS SECTION LOCATION

                              500
                                8500   8900   9300       9700   10100                    10500   10900       11300         11700          12100   12500   12900            13300            13700

                                                                           STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                            83P
                              535                                                                                                                                                                                   535
                                        1% ANNUAL CHANCE BACKWATER EFFECTS FROM TRIBUTARY NO 78




                              530                                                                                                                                                                                   530




                                                                                                                                                                      LIMIT OF STUDY




                                                                                                                                                                                                                               FLOOD PROFILES
                              525                                                                                                                                                                                   525




                                                                                                                                                                                                                                                                                TRIBUTARY NO 79
                              520                                                                                                                                                                                   520
ELEVATION IN FEET (NAVD 88)




                              515                                                                                                                                                                                   515




                              510                                                                                                                                                                                   510




                                                                                                                                                                                                                          FEDERAL EMERGENCY MANAGEMENT AGENCY
                              505                                                                                                                                                                                   505




                                                                                                                                                                                                                                                                WASHINGTON COUNTY, MD
                                                               CULVERT




                                                                                                                                                                                                                                                                                    AND INCORPORATED AREAS
                                                                                                                                                                                  B

                              500                                                                                                                                                                                   500
                                                                                                                                                                                       LEGEND
                                                   HEBB ROAD




                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              495
                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                        STREAM BED
                                                                                                                         A                                                              CROSS SECTION LOCATION

                              490
                                    0    100                   200       300       400            500          600           700           800           900   1000           1100              1200             1300

                                                                                         STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 78
                                                                                                                                                                                                                                                                84P
                              520                                                                                                                                                                                                    520




                                                                                                  POTOMAC STREET/STATE ROUTE 34
                                    LIMIT OF DETAILED STUDY
                              510                                                                                                                                                                                                    510




                                                                                                                                                               KING ROAD




                                                                                                                                                                                                                                                FLOOD PROFILES
                              500                                                                                                                                                                                                    500




                                                                                                                                                                                                                                                                                                 TRIBUTARY NO 97
                                                                                                                                                          CULVERT
                              490                                                                                                                                                                                                    490
ELEVATION IN FEET (NAVD 88)




                              480                                                                                                                                                                                                    480




                              470                                                                                                                                                                                                    470




                                                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              460                                                                                                                                                                                                    460




                                                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                     AND INCORPORATED AREAS
                              450                                                                                                                                                                                                    450
                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              440
                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                  D                                        F
                                                                                                                                                                                                        STREAM BED
                                                        A                             B                             C                                                E         G                        CROSS SECTION LOCATION

                              430
                                12200                         12600   13000   13400       13800                                   14200   14600   15000              15400     15800   16200   16600            17000            17400

                                                                                             STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                                                                 85P
                              580                                                                                                                                                                     580




                                                                                              LIMIT OF DETAILED STUDY
                              570                                                                                                                                                                     570




                                                                  PRIVATE DRIVE




                                                                                                                                                                                                                 FLOOD PROFILES
                              560                                                                                                                                                                     560




                                                                                                                                                                                                                                                                  TRIBUTARY NO 97
                              550                                                                                                                                                                     550
ELEVATION IN FEET (NAVD 88)




                              540                                                                                                                                                                     540




                              530                                                                                                                                                                     530




                                                                                                                                                                                                            FEDERAL EMERGENCY MANAGEMENT AGENCY
                              520                                                                                                                                                                     520




                                                                                                                                                                                                                                                  WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                      AND INCORPORATED AREAS
                              510                                                                                                                                                                     510
                                                                                                                                                                        LEGEND
                                                                                                                                                                         0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                         1% ANNUAL CHANCE FLOOD
                                                                                                                                                                         2% ANNUAL CHANCE FLOOD
                              500
                                                                                                                                                                         10% ANNUAL CHANCE FLOOD
                                                                                  I
                                                                                                                                                                         STREAM BED
                                                                            H                                     J                                                      CROSS SECTION LOCATION

                              490
                                17400   17800   18200   18600   19000                 19400                             19800   20200   20600   21000   21400   21800            22200            22600

                                                                     STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                                  86P
                              530                                                                                                                                                                                                                                  530




                                                                                                                                                                              CONFLUENCE OF BRANCH B
                              520                                                                                                                                                                                                                                  520
                                    MONROE ROAD/LIMIT OF DETAILED STUDY




                                                                                                                                                                                                                                                                              FLOOD PROFILES
                              510                                                                                                                                                                                                                                  510




                                                                                                                                                                                                                                                                                                                               TRIBUTARY NO 98
                              500                                                                                                                                                                                                                                  500
ELEVATION IN FEET (NAVD 88)




                              490                                                                                                                                                                                                                                  490




                                                                                                                                                                                                                                               LIMIT OF STUDY
                              480                                                                                                                                                                                                                                  480




                                                                                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                              470                                                                                                                                                                                                                                  470




                                                                                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                                                                                                                                                                                                                G                                         H

                              460                                                                                                                                                                                                                                  460
                                                                                                                                                                                                                            LEGEND
                                                                                                                                                                                                                             0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                             1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                             2% ANNUAL CHANCE FLOOD
                              450
                                                                                                                                                                                                                             10% ANNUAL CHANCE FLOOD
                                                                          CULVERT                                                                                                                                            STREAM BED
                                                                                     B          C          D                                 E                            F                                                  CROSS SECTION LOCATION
                                                           A
                              440
                                2000                                          2500       3000       3500       4000          4500          5000          5500          6000                            6500   7000   7500            8000                       8500

                                                                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH TRIBUTARY NO 97
                                                                                                                                                                                                                                                                                                               87P
                              580                                                                                                                                                                                                                            580




                              570                                                                                                                                                                                                                            570

                                                                            MILLBROOK ROAD




                                                                                                   PRIVATE DRIVE




                                                                                                                                                                  PRIVATE DRIVE




                                                                                                                                                                                                                                                                        FLOOD PROFILES
                              560                                                                                                                                                                                                                            560




                                                                                                                                                                                                                                                                                                                         TRIBUTARY NO 102
                                    CONFLUENCE WITH LITTLE ANTIETAM CREEK




                              550                                                                                                                                                                                                                            550
ELEVATION IN FEET (NAVD 88)




                              540                                                                                                                                                                                                                            540




                              530                                                                                                                                                 CULVERT                                                                    530



                                                                                                                   CULVERT




                                                                                                                                                                                                                                                                   FEDERAL EMERGENCY MANAGEMENT AGENCY
                              520                                                                                                                                                                                                                            520




                                                                                                                                                                                                                                                                                                         WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                             AND INCORPORATED AREAS
                                                                                                                                                                                                                                          E

                              510                                                                                                                                                                                                                            510
                                                                                                                                                                                                                                LEGEND
                                                                                                                                                                                                                                 0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 2% ANNUAL CHANCE FLOOD
                              500
                                                                                                                                                                                                                                 10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                 STREAM BED
                                                                      A                      B                                     C                                                                D                            CROSS SECTION LOCATION

                              490
                                    0                                                        200                   400       600       800         1000          1200                       1400   1600    1800   2000   2200            2400             2600

                                                                                                                                         STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                         88P
                              620                                                                                                                                                                      620




                              610                                                                                                                                                                      610




                                                                                                               PRIVATE DRIVE




                                                                                                                                                                                                                  FLOOD PROFILES
                              600                                                                                                                                                                      600




                                                                                                                                                                                                                                                                   TRIBUTARY NO 102
                              590                                                                                                                                                                      590
ELEVATION IN FEET (NAVD 88)




                              580                                                                                                                                                                      580




                                                                                                                                                                                   LIMIT OF STUDY
                              570                                                                                                                                                                      570




                                                                                                                                                                                                             FEDERAL EMERGENCY MANAGEMENT AGENCY
                              560                                                                                                                                                                      560




                                                                                                                                                                                                                                                   WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                       AND INCORPORATED AREAS
                                                                                                                                                                                             K

                              550                                                                                                                                                                      550
                                                                                                                                                                   LEGEND
                                                                                                                                                                    0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                    1% ANNUAL CHANCE FLOOD
                                                                                                                                                                    2% ANNUAL CHANCE FLOOD
                              540
                                                                                                                                                                    10% ANNUAL CHANCE FLOOD
                                                                                                                                                                    STREAM BED
                                              F                 G                                          H                   I                 J                  CROSS SECTION LOCATION

                              530
                                2600   2800       3000   3200       3400        3600          3800             4000                4200   4400       4600   4800            5000                    5200

                                                                      STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH LITTLE ANTIETAM CREEK
                                                                                                                                                                                                                                                   89P
                              430                                                                                                                                                                                                                                                                          430




                                       LIMIT OF DETAILED STUDY




                                                                                                                 EAST ANTIETAM STREET
                              425                                                                                                                                                                                                                                                                          425




                                                                                                CHURCH STREET




                                                                                                                                                                                                                                 LIMIT OF STUDY
                                                                                                                                                                            FOOTBRIDGE
                                                                                                                                                               FOOTBRIDGE




                                                                                                                                                                                         FOOTBRIDGE
                                                                                                                                                                                                        FOOTBRIDGE
                                                                                                                                                                             BUILDING
                                                                                                                                                    ALLEY 10




                                                                                                                                                                                                                      ALLEY 10
                                                                 WEIR




                                                                                                                                                                                                                                                                                                                      FLOOD PROFILES
                              420                                                                                                                                                                                                                                                                          420




                                                                                                                                                                                                                                                                                                                                                                       TRIBUTARY NO 105
                                                                                                                                                                                              ALLEY 4
                              415                                                                                                                                                                                                                                                                          415
                                               HIGH STREET
ELEVATION IN FEET (NAVD 88)




                              410                                                                                                                                                                                                                                                                          410




                                                                                      CULVERT
                              405                                                                                                                                                                                                                                                                          405
                                                                                                                                                                                                                                 CULVERT
                                                                                                                CULVERT                           CULVERT                           CULVERT




                                                                                                                                                                                                                                                                                                                 FEDERAL EMERGENCY MANAGEMENT AGENCY
                                                                  CULVERT
                              400                                                                                                                                                                                                                                                                          400




                                                                                                                                                                                                                                                                                                                                                       WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                                           AND INCORPORATED AREAS
                              395                                                                                                                                                                                                                                                                          395
                                                                                                                                                                                                                                                                              LEGEND
                                                                                                                                                                                                                                                                               0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                               1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                               2% ANNUAL CHANCE FLOOD
                              390
                                                                                                                                                                                                                                                                               10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                                               STREAM BED
                                                           A                                    B                                                                     C                                                                      D                                 CROSS SECTION LOCATION

                              385
                                3600                                    3800   4000                 4200                                4400             4600                 4800                                   5000                         5200   5400   5600   5800            6000             6200

                                                                                                                                               STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ANTIETAM CREEK
                                                                                                                                                                                                                                                                                                                                                       90P
                              570                                                                                                                                                                                                                                                   570
                                                                         1% ANNUAL CHANCE BACKWATER EFFECTS FROM ISRAEL CREEK




                                                                                                 ROHRERSVILLE ROAD/STATE ROUTE 67
                              560                                                                                                                                                                                                                                                   560




                                                                                                                                                                                                                                    BROWNSVILLE ROAD




                                                                                                                                                                                                                                                                                               FLOOD PROFILES
                              550                                                                                                                                                                                                                                                   550




                                                                                                                                                                                                                                                                                                                                                TRIBUTARY NO 112
                                    CONFLUENCE WITH ISRAEL CREEK




                              540                                                                                                                                                                                                                                                   540
ELEVATION IN FEET (NAVD 88)




                              530                                                                                                                                                                                                                                                   530
                                                                                                                                                                                                                         CULVERT




                              520                                                                                                                                                                                                                                                   520




                                                                                                                                                                                                                                                                                          FEDERAL EMERGENCY MANAGEMENT AGENCY
                              510                                                                                                                                                                                                                                                   510
                                                                                      CULVERT




                                                                                                                                                                                                                                                                                                                                WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                                                    AND INCORPORATED AREAS
                              500                                                                                                                                                                                                                                                   500
                                                                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              490
                                                                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                                                        STREAM BED
                                                                               A                                                                                B                                             C                                         CROSS SECTION LOCATION

                              480
                                    0                              200          400             600                                 800         1000          1200          1400          1600         1800       2000             2200                         2400             2600

                                                                                                                                          STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ISRAEL CREEK
                                                                                                                                                                                                                                                                                                                                91P
                              610                                                                                                                                                                                                   610




                              600                                                                                                                                                                                                   600




                                                                                                                          BOTELER ROAD
                                    PRIVATE DRIVE




                                                                                                                                                                                                                                               FLOOD PROFILES
                              590                                                                                                                                                                                                   590




                                                                                                                                                                                                                                                                                                TRIBUTARY NO 112
                                                                                                                                            CULVERT

                              580                                                                                                                                                                                                   580
ELEVATION IN FEET (NAVD 88)




                              570                                                                                 CULVERT                                                                                                           570




                              560                                                                                                                                                                                                   560




                                                                                                                                                      ROHRERSVILLE ROAD/STATE ROUTE 67




                                                                                                                                                                                                                                          FEDERAL EMERGENCY MANAGEMENT AGENCY
                              550                                                                                                                                                                                                   550




                                                                                                                                                                                                                                                                                WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                    AND INCORPORATED AREAS
                                                                                                                                                                                                                        E

                              540                                                                                                                                                                                                   540
                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                        CULVERT
                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              530
                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        STREAM BED
                                                                                        D                                                                                                               CROSS SECTION LOCATION

                              520
                                2600                2800   3000   3200   3400         3600          3800          4000                   4200            4400                            4600   4800            5000             5200

                                                                                STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ISRAEL CREEK
                                                                                                                                                                                                                                                                                92P
                              670                                                                                                                                                                                  670




                              660                                                                                                                                                                                  660




                                                                            LIMIT OF STUDY
                                              PRIVATE DRIVE




                                                                                                                                                                                                                              FLOOD PROFILES
                              650                                                                                                                                                                                  650




                                                                                                                                                                                                                                                                               TRIBUTARY NO 112
                              640                                                                                                                                                                                  640
ELEVATION IN FEET (NAVD 88)




                              630                                                                                                                                                                                  630




                              620                                                                                                                                                                                  620




                                                                                                                                                                                                                         FEDERAL EMERGENCY MANAGEMENT AGENCY
                                       CULVERT
                              610                                                                                                                                                                                  610




                                                                                                                                                                                                                                                               WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                   AND INCORPORATED AREAS
                              600                                                                                                                                                                                  600
                                                                                                                                                                                      LEGEND
                                                                                                                                                                                       0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                       1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                       2% ANNUAL CHANCE FLOOD
                              590
                                                                                                                                                                                       10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                       STREAM BED
                                                                                       F
                                                                                                                                                                                       CROSS SECTION LOCATION

                              580
                                5200   5400                   5600   5800                    6000         6200          6400          6600          6800         7000   7200   7400            7600             7800

                                                                                                    STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ISRAEL CREEK
                                                                                                                                                                                                                                                               93P
                              630                                                                                                                                                                                                    630




                              620                                                                                                                                                                                                    620




                                                                                                MARSH PIKE




                                                                                                                                                                          RAILROAD
                                    CONFLUENCE WITH MARSH RUN I




                                                                                                                                                                                                                                                FLOOD PROFILES
                              610                                                                                                                                                                                                    610




                                                                                                                                                                                                                                                                                                 WEST BRANCH
                              600                                                                                                                                                                                                    600
ELEVATION IN FEET (NAVD 88)




                              590                                                                                                                                                                                                    590




                              580                                                                                                                                                                                                    580




                                                                                                                                                                                                                                           FEDERAL EMERGENCY MANAGEMENT AGENCY
                              570                                                                                                                                                                                                    570




                                                                                                                                                                                                                                                                                 WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                     AND INCORPORATED AREAS
                                                                                                                                                                                                                                 H

                              560                                                                                                                                                                                                    560
                                                                                                                                                                                                       LEGEND
                                                                                                                                                                                                        0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                        2% ANNUAL CHANCE FLOOD
                              550
                                                                                                                                                                                                        10% ANNUAL CHANCE FLOOD
                                                                                                                                                                                     G
                                                                                                                                                                                                        STREAM BED
                                                                         A    B                 C              D                                E                            F                          CROSS SECTION LOCATION

                              540
                                    0                             400   800       1200   1600                2000         2400          2800          3200         3600                  4000   4400            4800             5200

                                                                                                       STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MARSH RUN I
                                                                                                                                                                                                                                                                                 94P
                              650                                                                                                                                                                                                                       650




                                                                                                                    CONFLUENCE OF TRIBUTARY NO 73




                                                                                                                                                                           LIMIT OF DETAILED STUDY
                                                        PARADISE CHURCH ROAD
                              640                                                                                                                                                                                                                       640




                                                                                                                                                           PRIVATE DRIVE




                                                                                                                                                                                                                                                                   FLOOD PROFILES
                              630                                                                                                                                                                                                                       630




                                                                                                                                                                                                                                                                                                                    WEST BRANCH
                              620                                                                                                                                                                                                                       620
ELEVATION IN FEET (NAVD 88)




                              610                                                                                                                                                                                                                       610




                              600                                                                                                                                                                                                                       600


                                                     CULVERT
                                                                                                                                                                                CULVERT




                                                                                                                                                                                                                                                              FEDERAL EMERGENCY MANAGEMENT AGENCY
                              590                                                                                                                                                                                                                       590




                                                                                                                                                                                                                                                                                                    WASHINGTON COUNTY, MD
                                                                                                                                                                                                                                                                                                                        AND INCORPORATED AREAS
                              580                                                                                                                                                                                                                       580
                                                                                                                                                                                                                          LEGEND
                                                                                                                                                                                                                           0.2% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                           1% ANNUAL CHANCE FLOOD
                                                                                                                                                                                                                           2% ANNUAL CHANCE FLOOD
                              570
                                                                                                                                                                                                                           10% ANNUAL CHANCE FLOOD
                                                                               J                                                                                                                L
                                                                                                                                                                                                                           STREAM BED
                                                                       I                                                        K                                                                                          CROSS SECTION LOCATION

                              560
                                5200   5600   6000   6400                          6800        7200          7600                                   8000     8400                                    8800   9200   9600            10000            10400

                                                                                          STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MARSH RUN I
                                                                                                                                                                                                                                                                                                    95P

				
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