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					                  SOUTH CAROLINA HAZARD MITIGATION PLAN
                     SECTION 6: VULNERABILITY ASSESSMENT


 FEDERAL REQUIREMENTS FOR STATE MITIGATION PLANS
 Requirement 201.4(C)(2)(ii): [The risk assessment shall include] an overview and analysis of the
 State’s vulnerability to the hazards described in this paragraph (c)(2), based on estimates provided in
 local risk assessments. The State shall describe vulnerability in terms of the jurisdictions most
 threatened by the identified hazards, and most vulnerable to damage and loss associated with hazard
 events …

Based on the Hazard Analysis conducted for the State of South Carolina, the hazards
listed below have been chosen for inclusion in the vulnerability assessment. This listing
differs slightly in terminology and grouping from the Hazard Identification and Hazard
Analysis sections, as those hazards specifically affecting South Carolina are more fully
explored.
           Flood
           Severe Winds – Hurricanes and Tropical Storms
           Thunderstorms
           Tornadoes
           Wildfire
           Drought
           Hail
           Winter Storms
           Lightning
           Coastal Erosion
           Dam Failure
           Earthquake
           Hazardous Material (HAZMAT) Incident: Fixed and Mobile
           Public Health Emergencies

These hazards were chosen from the previous sections due to the higher level of risk
when compared to others. It is important to note that this risk assessment is based on best
available data and represents a base-level assessment. These estimates should be used to
understand relative hazard risk, including potential losses. However, it is important to
understand that uncertainties are inherent in any loss estimation methodology, arising in
part from incomplete scientific knowledge concerning hazards and their effects on the
built environment. Uncertainties also result from approximations and simplifications that
are necessary for a comprehensive analysis (such as abbreviated inventories,
demographics or economic parameters). Additional work will be done on an ongoing
basis to enhance, expand and further improve the accuracy of the baseline established
here.

In order to conduct the risk assessment, two distinct methods were applied: HAZUS-
MH® (FEMA’s loss estimation software) and a statistical approach. Both techniques


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Vulnerability Assessment

provide estimates of potential impact using a sound analytical framework. The HAZUS-
MH risk assessment method is parametric, in that distinct hazard and inventory
parameters (for example, wind speed and building types) were modeled using the
HAZUS-MH software to determine the impact (damages and losses) on the built
environment. The HAZUS-MH software was used to estimate losses from hurricane
wind, flood and earthquake hazards. The second method was used to analyze hazards
that are outside the scope of the HAZUS-MH software and are based on actual damages
sustained over time and their probability of occurrence.            The HAZUS-driven
methodology uses a statistical approach and mathematical modeling of risk to predict a
hazard’s frequency of occurrence and estimated impacts based on recorded or historic
damage information.

State-owned facilities were analyzed across wind, flood and earthquake hazards using
HAZUS-MH. The assessment of state-owned facilities will only address those structures
3,000 square feet and larger. There are two reasons for limiting the vulnerability
assessment to buildings 3,000 square feet and larger. First, the state's Insurance Reserve
Fund Program only insures buildings 3,000 square feet and larger because they
determined that buildings of this size accounted for the majority of exposure. In
Addition, the Insurance Reserve Fund Program provided SCEMD with structural
information for buildings 3,000 square feet and larger. Future updates will include an
assessment of infrastructure such as roads and bridges as detailed information becomes
available. Federal properties were not assessed due to the lack of available data and the
authority to implement appropriate mitigation measures. Properties owned by local
governments are addressed in local hazard mitigation plans, and therefore, are not
included in this plan.

Explanation of HAZUS-MH Risk Assessment Methodology
HAZUS-MH is FEMA’s standardized loss estimation software program, built upon an
integrated geographic information system (GIS) platform (Figure 6.1). This risk
assessment applied HAZUS-MH to produce regional profiles and estimate losses for
three of the seven hazards addressed in this section, including flood, hurricane winds and
earthquake.

In order to utilize best available data, the HAZUS-MH methodology was customized to
analyze the flood hazard for those counties with available Q3 data. To perform this
analysis, an automated computer query or command series known as a ―macro‖ was used
as an extension to HAZUS-MH. The flood macro was used to streamline the flood
analysis and estimate flood depths, as well as estimate losses for a 100- and 500-year
flood. The 11 residential and 10 commercial occupancy classes traditionally used by
HAZUS-MH were condensed into three occupancy classes (residential, commercial, and
industrial) to facilitate the analysis.

The macro-approach to flood hazard analysis has been tested and typically estimates
results generally with only a 10 to 15 percent margin of error difference from a ―Level 2‖
analysis which uses local data in addition to the standard information present in the



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Vulnerability Assessment

HAZUS-MH model. The flood macro is a fully compatible extension to the HAZUS-MH
software package and was specifically designed to meet the requirements of DMA 2000.


                                       FIGURE 6.1
                           CONCEPTUAL MODEL OF HAZUS-MH




Explanation of Statistical Risk Assessment Methodology
Risks associated with other natural hazards were analyzed using historical data including
property and crop damages, deaths, injuries, intensity, and number of occurrences. This
approach is based on the same principals as HAZUS-MH, but does not rely on automated
software. Historical data for each hazard are used and statistical evaluations are performed
using manual calculations. The general steps used in the statistical risk assessment methods
are summarized below.

      Compile data from national and state sources;
      Conduct statistical analysis of data to relate historical patterns within data to
       existing hazard models (minimum, maximum, average and standard deviation);
      Categorize parameters for each hazard to be modeled;
      Develop model parameters based on an analysis of data, existing hazard models
       and risk engineering judgment;
      Apply hazard model using the following criteria:



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Vulnerability Assessment

             o Analysis of the frequency of hazard occurrence
             o Analysis of the intensity and damage parameters of hazard occurrence
             o Convert past damages into current value by applying an average inflation
               rate between 1951 and 20061
             o Develop normalized intensity and frequency tables for each jurisdiction
               based on state averages

        Compute annualized loss by multiplying probability, severity, area impacted and
         exposed property (values);2 and
        Develop a summary table showing annualized loss for each hazard by jurisdiction.

Figure 6.2 illustrates a conceptual model of the statistical risk assessment method as
applied to this risk assessment.




1
  Average inflation rate is based on average Consumer Price Index (CPI) inflation rate from 1951 to 2006
(Bureau of Labor Statistics).
2
  If the historical data does not include the severity or area impacted across events, financial loss was used
as a proxy to conduct the analysis.




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Vulnerability Assessment


                                                                  FIGURE 6.2
       CONCEPTUAL MODEL OF THE STATISTICAL RISK ASSESSMENT METHOD


       Compile, Analyze and
       Categorize data



                                                                                           Assumptions/
                                                                                       Engineering Judgment/
                                                                                          Expert Opinion
                               Winter Storm


                                              Freezing
                         Ice                             Snow
                Year                            rain


                1980     5                       0        1



                1982     5                       5        1


                 ---     ---                     ---      ---


               minimum
                     =   0.0                    0.0       0.0
                                                                Observed Intensity/
                                                                 Observed Intensity/                           Hazard/Intensity
                                                                                                                Hazard/Intensity
                                                                Date ofof Occurrence
                                                                 Date Occurrence
                                                                                                               Frequency Model
               average
                     =   2.3                    1.4       1.3                                                   Frequency Model


                                                                Document Observed
                                                                 Document Observed                             Damage Function
                                                                                                                Damage Function
                                                                 Historical Damage                              Damage-Intensity
                                                                  Historical Damage                              Damage-Intensity
                                                                                                                  Relationship
                                                                                                                   Relationship




                                                                                                               LOSS ESTIMATE
                                                                                                                LOSS ESTIMATE
        Verify Data/
        Calculate Statistics




Preparing estimated annualized losses across hazards addresses the three key components
of risk:

      The probability of the hazard occurring in the study area;
      The intensity of the hazard event; and
      The consequences of the hazard, which is largely a function of building
       construction type and quality.

By annualizing estimated losses, the annualized loss factors across historic patterns of
frequently occurring smaller events and infrequent but larger events provide a balanced
assessment of risk. The outputs of HAZUS-MH provided in this document are
considered to be the result of a worst-case scenario event for each hazard, and it is
understood that any smaller events which could occur would most likely create fewer
losses than those calculated here. The use of annualized losses has three primary
benefits, including: the ability to assess potential losses from all future disasters, results
across different hazards are readily comparable and are therefore easier to rank, and the
annualized losses method provides an objective means to evaluate differing mitigation
alternatives.




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Vulnerability Assessment


OVERVIEW OF VULNERABILITY IN SOUTH CAROLINA
This section provides information on hazard vulnerability across South Carolina by
county. Figure 6.3 shows the state’s demographic distribution at the census tract level,
based on Census 2000. Table 6.1 provides a breakdown by county of population, land
and water area and density derived from Census 2000 data. Greenville County has the
largest population in the state, and coastal counties including Beaufort, Charleston and
Horry have a higher population than the state average.

Table 6.2, Table 6.3 and Table 6.4 provide HAZUS-MH estimates for exposed building
count and value for residential, commercial and other occupancy classes3, as well as
essential facility exposure to all hazards by county. 4 The building values have changed in
the latest release of HAZUS-MH (MR2), but the building counts and number of essential
facilities has not changed. Greenville County has the highest residential exposure among
counties in the state, while Richland County has the highest exposure of commercial
buildings and hospitals.

                                              FIGURE 6.3
                   DENSITY OF GENERAL POPULATION BY CENSUS TRACT




3
  Occupancy classes included in the ―Other‖ category in this document include industrial, governmental,
educational, religious, and agricultural. This does not include schools, which are considered to be essential
facilities.
4
  In Table 6.4, the abbreviation ―EOCs‖ is used for ―Emergency Operation Centers.‖




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Vulnerability Assessment


                                          TABLE 6.1
COUNTY POPULATIONS, NUMBER OF RESIDENTIAL BUILDINGS AND LAND AREA (2000)
                                                                           DENSITY PER SQUARE
                                       AREA IN SQUARE MILES
  COUNTY       POPULATION                                                   MILE OF LAND AREA
                                TOTAL AREA    WATER AREA    LAND AREA     POPULATION HOUSING
Abbeville              26,167        511.05          3.02        508.03          51.5        22.9
Aiken                 142,552      1,080.46          7.79      1,072.66         132.9        57.8
Allendale              11,211        412.58          4.38         408.2          27.5        11.2
Anderson              165,740        757.45         39.43        718.02         230.8         102
Bamberg                16,658        395.47          2.22        393.25          42.4        18.1
Barnwell               23,478        557.25          8.84        548.41          42.8        18.6
Beaufort              120,937        922.88        336.03        586.86         206.1       103.1
Berkeley              142,651      1,228.07        130.35      1,097.72           130        49.8
Calhoun                15,185        392.34         12.11        380.22          39.9        18.1
Charleston            309,969      1,358.11        439.61        918.51         337.5       153.5
Cherokee               52,537        397.28          4.59        392.69         133.8          57
Chester                34,068        586.16          5.64        580.52          58.7        24.8
Chesterfield           42,768        805.78          7.18         798.6          53.6        23.6
Clarendon              32,502        695.66         88.46        607.21          53.5        25.2
Colleton               38,264      1,133.21         76.86      1,056.36          36.2        17.2
Darlington             67,394        566.78          5.63        561.14         120.1        51.6
Dillon                 30,722        406.54           1.7        404.84          75.9        31.3
Dorchester             96,413        576.69          1.96        574.73         167.8        64.8
Edgefield              24,595        506.54          4.64        501.89            49        18.4
Fairfield              23,454        709.93         23.34        686.59          34.2        15.1
Florence              125,761        803.74           3.9        799.84         157.2        64.8
Georgetown             55,797      1,035.00        220.16        814.83          68.5        34.7
Greenville            379,616        794.96          4.88        790.08         480.5       206.1
Greenwood              66,271        462.94          7.42        455.52         145.5          62
Hampton                21,386        562.63          2.85        559.78          38.2        15.3
Horry                 196,629      1,254.96        121.28      1,133.68         173.4       107.7
Jasper                 20,678        699.79         43.67        656.12          31.5        12.1
Kershaw                52,647        740.25            14        726.26          72.5        31.2
Lancaster              61,351        555.29           6.3        548.99         111.8        45.5
Laurens                69,567        723.98          8.87        715.11          97.3        42.3
Lee                    20,119         411.3             1         410.3            49        18.7
Lexington             216,014        757.88         58.63        699.25         308.9       130.1
Marion                 35,466        494.09          5.03        489.06          72.5          31
Marlboro               28,818        485.28          5.57        479.71          60.1        24.8
McCormick               9,958        393.85         34.29        359.56          27.7        12.4
Newberry               36,108        647.28         16.51        630.77          57.2        26.6
Oconee                 66,215        673.58         48.17        625.41         105.9        51.8
Orangeburg             91,582      1,128.09         21.93      1,106.16          82.8        35.5
Pickens               110,757        511.85         14.96        496.89         222.9        92.6
Richland              320,677        771.72          15.3        756.41         423.9       171.6
Saluda                 19,181        461.78           9.3        452.48          42.4        18.9
Spartanburg           253,791        819.14          8.22        810.93           313       131.9
Sumter                104,646        682.03         16.63        665.41         157.3        62.7
Union                  29,881        515.92           1.8        514.12          58.1          26
Williamsburg           37,217        936.92          3.02         933.9          39.9        16.7
York                  164,614        695.72         13.27        682.45         241.2        96.8
TOTAL               4,012,012     32,020.20      1,910.73     30,109.47         133.2        58.2
Source: U.S. Census Bureau


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Vulnerability Assessment

                                        TABLE 6.2
                        BUILDING COUNT BY OCCUPANCY CLASS
                                           NUMBER OF BUILDINGS
    COUNTY
                    RESIDENTIAL        COMMERCIAL         OTHER               TOTAL
 Abbeville                    10,688              35                 30             10,753
 Aiken                        58,893             293                146             59,332
 Allendale                     3,952              17                 29              3,998
 Anderson                     67,942             421                160             68,523
 Bamberg                       6,258              25                 20              6,303
 Barnwell                      9,452              35                 66              9,553
 Beaufort                     54,380             555                 95             55,030
 Berkeley                     50,818             211                 71             51,100
 Calhoun                       6,693              16                  9              6,718
 Charleston                  115,364           1,410                246            117,020
 Cherokee                     20,387              86                 24             20,497
 Chester                      13,322              61                 30             13,413
 Chesterfield                 17,318              79                 66             17,463
 Clarendon                    14,091              53                 36             14,180
 Colleton                     16,963              92                 59             17,114
 Darlington                   26,551             116                105             26,772
 Dillon                       11,302              50                 18             11,370
 Dorchester                   34,725             164                 59             34,948
 Edgefield                     8,706              30                 37              8,773
 Fairfield                     9,577              41                 20              9,638
 Florence                     46,602             425                124             47,151
 Georgetown                   26,186             185                 34             26,405
 Greenville                  142,664           1,526              1,417            145,607
 Greenwood                    24,718             280                101             25,099
 Hampton                       7,958              37                 23              8,018
 Horry                        87,900             901                133             88,934
 Jasper                        7,413              52                 29              7,494
 Kershaw                      22,394             107                 45             22,546
 Lancaster                    23,235             131                 26             23,392
 Laurens                      28,385              88                 64             28,537
 Lee                           7,078              21                  7              7,106
 Lexington                    89,048             635                142             89,825
 Marion                       13,778              57                 27             13,862
 Marlboro                     10,425              40                 26             10,491
 McCormick                     4,089              10                 10              4,109
 Newberry                     15,665              57                 29             15,751
 Oconee                       30,394             136                 39             30,569
 Orangeburg                   36,388             222                 54             36,664
 Pickens                      41,217             196                 48             41,461
 Richland                    105,286          18,115                382            123,783
 Saluda                        8,336              25                 26              8,387
 Spartanburg                  98,254             775                245             99,274
 Sumter                       38,270             228                121             38,619
 Union                        12,245              47                 25             12,317
 Williamsburg                 14,286              73                 30             14,389
 York                         61,943             428                149             62,520
 TOTAL                     1,561,539          28,587              4,682          1,594,808
Source: HAZUS-MH MR2




October 2004 – Updated March 2007          -8-                        Hazard Mitigation Plan
Vulnerability Assessment

                                      TABLE 6.3
                        BUILDING VALUES BY OCCUPANCY CLASS
                                           BUILDING VALUES
     COUNTY
                      RESIDENTIAL     COMMERCIAL        OTHER                  TOTAL
 Abbeville           $1,537,435,000      $138,969,000      $165,367,000     $1,841,771,000
 Aiken               $9,358,249,000    $1,213,568,000      $871,660,000    $11,443,477,000
 Allendale             $472,673,000       $66,697,000      $121,906,000       $661,276,000
 Anderson          $10,468,497,000     $1,807,271,000      $959,064,000    $13,234,832,000
 Bamberg               $814,139,000      $106,511,000       $96,248,000     $1,016,898,000
 Barnwell            $1,143,156,000      $153,624,000      $194,610,000     $1,491,390,000
 Beaufort          $10,480,663,000     $1,871,759,000      $487,872,000    $12,840,294,000
 Berkeley            $8,080,917,000      $797,618,000      $394,114,000     $9,272,649,000
 Calhoun               $801,232,000       $59,977,000       $48,923,000       $910,132,000
 Charleston        $23,204,607,000     $5,629,171,000    $1,552,437,000    $30,386,215,000
 Cherokee            $2,792,389,000      $349,159,000      $170,271,000     $3,311,819,000
 Chester             $1,723,848,000      $269,903,000      $167,345,000     $2,161,096,000
 Chesterfield        $2,077,358,000      $277,328,000      $355,473,000     $2,710,159,000
 Clarendon           $1,633,624,000      $233,140,000      $170,590,000     $2,037,354,000
 Colleton            $2,017,410,000      $354,500,000      $281,062,000     $2,652,972,000
 Darlington          $3,333,078,000      $475,872,000      $531,846,000     $4,340,796,000
 Dillon              $1,291,476,000      $233,929,000      $105,436,000     $1,630,841,000
 Dorchester          $5,817,493,000      $622,749,000      $388,519,000     $6,828,761,000
 Edgefield           $1,315,696,000      $124,871,000      $208,506,000     $1,649,073,000
 Fairfield           $1,258,833,000      $157,851,000      $101,646,000     $1,518,330,000
 Florence            $6,994,554,000    $1,908,041,000      $728,455,000     $9,631,050,000
 Georgetown          $3,913,901,000      $639,229,000      $237,716,000     $4,790,846,000
 Greenville        $26,496,080,000     $5,641,889,000    $6,821,823,000    $38,959,792,000
 Greenwood           $4,178,892,000      $994,247,000      $560,529,000     $5,733,668,000
 Hampton               $925,865,000      $144,130,000      $106,128,000     $1,176,123,000
 Horry             $15,204,761,000     $2,921,913,000      $806,011,000    $18,932,685,000
 Jasper                $927,641,000      $154,599,000      $124,500,000     $1,206,740,000
 Kershaw             $3,221,379,000      $438,055,000      $294,310,000     $3,953,744,000
 Lancaster           $3,353,874,000      $494,171,000      $225,324,000     $4,073,369,000
 Laurens             $3,801,561,000      $343,220,000      $311,425,000     $4,456,206,000
 Lee                   $828,913,000       $96,391,000       $48,561,000       $973,865,000
 Lexington         $15,061,364,000     $2,571,846,000    $1,013,187,000    $18,646,397,000
 Marion              $1,514,354,000      $318,684,000      $162,781,000     $1,995,819,000
 Marlboro            $1,264,666,000      $189,518,000      $121,873,000     $1,576,057,000
 McCormick             $568,350,000       $46,550,000       $42,153,000       $657,053,000
 Newberry            $2,226,105,000      $231,795,000      $154,111,000     $2,612,011,000
 Oconee              $4,319,707,000      $537,568,000      $249,012,000     $5,106,287,000
 Orangeburg          $4,789,305,000      $930,500,000      $383,368,000     $6,103,173,000
 Pickens             $6,598,174,000      $727,849,000      $348,434,000     $7,674,457,000
 Richland          $22,808,035,000    $24,939,916,000    $1,864,842,000    $49,612,793,000
 Saluda              $1,192,925,000      $101,891,000      $128,428,000     $1,423,244,000
 Spartanburg       $16,316,770,000     $3,225,635,000    $1,552,550,000    $21,094,955,000
 Sumter              $5,530,323,000      $904,672,000      $635,625,000     $7,070,620,000
 Union               $1,674,692,000      $198,726,000      $122,202,000     $1,995,620,000
 Williamsburg        $1,494,884,000      $250,210,000      $187,192,000     $1,932,286,000
 York              $10,701,411,000     $1,657,934,000      $929,741,000    $13,289,086,000
 TOTAL            $255,383,323,000    $65,523,098,000   $25,490,998,000   $346,618,081,000.
Source: HAZUS-MH MR2




October 2004 – Updated March 2007         -9-                         Hazard Mitigation Plan
Vulnerability Assessment


                                       TABLE 6.4
                             ESSENTIAL FACILITY EXPOSURE
                             MEDICAL FACILITIES       FIRE      POLICE
   COUNTY      SCHOOLS                                                        EOCs
                           FACILITIES     BEDS      STATIONS   STATIONS
 Abbeville       11            1            52        11           5           1
 Aiken           75            1           225        29          14           1
 Allendale       13            2            46         4           6           1
 Anderson        98            3           766        30           8           1
 Bamberg         20            1            59        10           1           1
 Barnwell        20            1            53         9           4           1
 Beaufort        44            3           210        25           1           1
 Berkeley        71            0            0         35           3           1
 Calhoun         10            0            0         11           1           1
 Charleston     119            12         2,148       58          12           1
 Cherokee        49            1           125        13           4           1
 Chester         20            1            82        12           5           1
 Chesterfield    39            1            59        20           8           1
 Clarendon       24            2            64        16           4           1
 Colleton        30            1           116        15           1           1
 Darlington      83            2           166        25           5           1
 Dillon          30            1            92         9           2           1
 Dorchester      26            2            84        17           4           1
 Edgefield        7            1            40        10           1           1
 Fairfield       10            1            50        12           2           1
 Florence        51            6           835        28           6           1
 Georgetown      17            1           142        16           3           1
 Greenville     104            11         1,418       37          10           1
 Greenwood       24            1           394        15           4           1
 Hampton         11            1            68        10           -           1
 Horry           40            3           437        37           5           1
 Jasper           5            2            39         8           1           1
 Kershaw         18            1           121        14           2           1
 Lancaster       21            1           194        22           4           1
 Laurens         19            2            98        21           2           1
 Lee              8            1            20         8           2           1
 Lexington       56            3           388        23           5           2
 Marion          17            1           124        10           -           1
 Marlboro        12            2           112        21           5           1
 McCormick        5            1            10         7           2           1
 Newberry        16            1            90        11           2           1
 Oconee          23            1           160        17           8           1
 Orangeburg      34            2           301        31           3           1
 Pickens         30            2           151        12          12           1
 Richland        91            16         3,544       28           5           1
 Saluda           5            4           916         6           5           1
 Spartanburg     80            2           273        55          12           1
 Sumter          33            2           159        19           2           1
 Union           11            1            78        11           4           1
 Williamsburg    17            1            43        13           3           1
 York            41            2           288        18           7           1
 TOTAL         1,588          108         14,840      869        205           47
Source: HAZUS-MH MR2



October 2004 – Updated March 2007          - 10 -                 Hazard Mitigation Plan
Vulnerability Assessment

Table 6.5 provides projected total population for the state for years 2015 and 20255,
percent population change from 2000 to 2025, a social vulnerability score6, and number
of visitors per day. Population projections indicate consistent growth in the state, with
the total population expected to exceed five million persons by 2025. Most coastal
counties, with the exception of Charleston and Colleton, will experience higher
population growth than the state average. Horry County represents the fastest growing
County in the state. The coastal counties experience the largest influx of tourists, with
higher numbers of daily visitors per county than other areas of the state. Richland
County, which includes the state capital of Columbia, also receives a large number of
visitors each day.

Figure 6.4 and Figure 6.5 show elderly population density and low-income population
density respectively by census tract for South Carolina. Greenville, Charleston,
Richland, Spartanburg and Horry counties have the largest concentration of elderly and
low-income residents among the 46 counties in the State. These counties also have the
highest overall populations among the state’s counties.




5
  Population Projection data were obtained from the South Carolina Office of Research and Statistics
6
  Social Vulnerability Analysis was completed by The Hazard Research Lab, Department of Geography,
University of South Carolina, 2005. Social vulnerability scores are derived from socio-economic
characteristics of each jurisdiction including age, gender, population, race, income and the number of
manufactured homes found in each county. This score indicates the potential for harm to individuals and
damage to properties that are more vulnerable than other groups because of socio-economic conditions.
For example, people under age 19 or over age 64 are more vulnerable than the general population due to
the need for special assistance should an evacuation be required in an emergency situation.




October 2004 – Updated March 2007               - 11 -                          Hazard Mitigation Plan
Vulnerability Assessment


                                              TABLE 6.5
 PROJECTED TOTAL POPULATION, SOCIAL VULNERABILITY SCORE, DAILY VISITORS
                                                     POPULATION     SOCIAL                MAXIMUM
                       POPULATION POPULATION
          COUNTY                                       CHANGE    VULNERABILITY             DAILY
                         IN 2015    IN 2025
                                                       2000-2025     SCORE                VISITORS
       Abbeville             28,480         30,200        15%              1.19               1,590
       Aiken                174,010        194,130        36%              3.10               4,469
       Allendale             12,090         12,380        10%              1.10                 599
       Anderson             188,420        204,750        24%              3.41               7,281
       Bamberg               15,350         14,540       -13%              1.21                 767
       Barnwell              26,450         28,550        22%              1.21                 673
       Beaufort             160,120        187,450        55%              2.31              62,731
       Berkeley             178,410        200,240        40%              2.93               5,029
       Calhoun               17,150         18,720        23%              0.86                 890
       Charleston           337,070        354,060        14%              5.52              64,908
       Cherokee              60,930         67,160        28%              1.58               1,834
       Chester               36,390         38,140        12%              1.31               1,357
       Chesterfield          45,490         47,940        12%              1.58               1,248
       Clarendon             35,950         38,650        19%              1.56               7,339
       Colleton              43,270         46,610        22%              1.61               8,024
       Darlington            70,620         73,330         9%              2.06               1,519
       Dillon                30,350         30,420        -1%              1.42               2,287
       Dorchester           124,270        141,920        47%              1.80               2,446
       Edgefield             29,320         33,130        35%              0.92                 603
       Fairfield             25,770         27,290        16%              1.24               2,001
       Florence             138,850        147,560        17%              2.86               8,245
       Georgetown            65,240         72,180        29%              1.73              16,308
       Greenville           444,880        492,100        30%              6.37              21,257
       Greenwood             73,680         78,890        19%              1.68               2,867
       Hampton               23,560         25,330        18%              1.20                 908
       Horry                262,180        308,540        57%              4.52             200,783
       Jasper                24,610         27,810        34%              1.08               4,642
       Kershaw               62,490         69,630        32%              1.48               4,439
       Lancaster             65,930         69,930        14%              1.64                 857
       Laurens               81,560         90,360        30%              2.00               3,215
       Lee                   21,510         22,430        11%              1.20                 434
       Lexington            272,090        311,140        44%              3.86               7,740
       Marion                36,840         37,780         7%              1.58                 769
       Marlboro              26,810         25,490       -12%              1.38               2,273
       McCormick             11,910         13,120        32%              0.78               1,090
       Newberry              39,770         42,310        17%              1.29               3,742
       Oconee                80,030         89,150        35%              1.79               7,493
       Orangeburg            99,490        104,820        14%              2.81               8,838
       Pickens              135,190        151,350        37%              2.25               3,978
       Richland             359,610        387,240        21%              5.59              20,927
       Saluda                20,820         22,180        16%              0.88               1,363
       Spartanburg          293,820        320,150        26%              4.80               8,814
       Sumter               120,190        128,360        23%              2.71               2,889
       Union                 29,250         28,750        -4%              1.25                 687
       Williamsburg          36,700         36,450        -2%              1.65                 873
       York                 207,160        236,960        44%              2.94               8,162
       TOTAL             4,674,080       5,129,620        28%              2.16             521,191
Sources: South Carolina Office of Research and Statistics, University of South Carolina


October 2004 – Updated March 2007                 - 12 -                           Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.4
                 DENSITY OF ELDERLY POPULATION BY CENSUS TRACT




                                    FIGURE 6.5
              DENSITY OF LOW-INCOME POPULATION BY CENSUS TRACT




October 2004 – Updated March 2007      - 13 -              Hazard Mitigation Plan
Vulnerability Assessment


STATE-OWNED FACILITIES
As shown in Table 6.6 and Table 6.7, there are a total of 2,696 state-owned facilities
larger than 3,000 square feet in the State of South Carolina, with a total building value of
over $6 billion and approximately $58 million in contents. Richland County, which
includes Columbia, the state capital, has more facilities than other counties while
Fairfield County has the least state-owned buildings. Universities7 own more buildings
and assets than other state agencies, including 705 buildings worth $2.2 billion scattered
throughout 19 counties. Special needs facilities, including buildings owned by the
Department of Corrections, Department of Mental Health as well as Disabilities and
Special Needs, own the second largest number of assets.

Figure 6.6 shows the location of state-owned facilities larger than 3,000 square feet in
floor area for South Carolina.




7
 The universities referred to here consist of: The Citadel, Clemson University, Coastal Carolina University,
Francis Marion University, Lander University, South Carolina State University, University of South
Carolina System and Winthrop University.




October 2004 – Updated March 2007                  - 14 -                           Hazard Mitigation Plan
 Vulnerability Assessment


                                           TABLE 6.6
                             STATE-OWNED FACILITY EXPOSURE
                 TOTAL BUILDING      TOTAL CONTENTS      SPECIAL NEEDS       UNIVERSITY-      TOTAL
   COUNTY
                     VALUE               VALUE             FACILITIES          OWNED        BUILDINGS
Abbeville                 $3,058,000          $31,000                   $0             $0       6
Aiken                   $81,455,000          $815,000                   $0    $53,274,000       40
Allendale               $45,619,000          $445,000          $37,225,000     $6,645,000       22
Anderson                $63,441,000          $633,000          $26,599,000     $1,480,000       46
Bamberg                 $21,509,000          $215,000                   $0             $0       23
Barnwell                  $6,244,000          $61,000                   $0     $3,197,000       22
Beaufort                $35,696,000          $350,000           $1,769,000     $9,714,000       48
Berkeley                $42,926,000          $428,000          $18,052,000             $0       32
Calhoun                   $2,357,000          $22,000                   $0             $0       6
Charleston           $1,306,053,000       $10,436,000         $285,122,000   $178,787,000      291
Cherokee                  $5,123,000          $48,000           $1,331,000             $0       15
Chester                   $9,036,000          $89,000                   $0             $0       18
Chesterfield            $15,393,000          $154,000                   $0             $0       27
Clarendon               $66,842,000        $1,327,000          $54,143,000     $2,072,000       29
Colleton                $91,372,000        $1,218,000           $1,273,000     $4,500,000       65
Darlington                $9,504,000          $97,000           $3,581,000             $0       10
Dillon                    $2,529,000          $25,000            $356,000              $0       5
Dorchester              $47,157,000          $472,000          $42,418,000             $0       25
Edgefield               $25,074,000          $248,000          $19,807,000             $0       26
Fairfield                 $2,038,000          $20,000                   $0             $0       5
Florence               $175,169,000        $1,754,000          $18,182,000   $108,254,000      115
Georgetown              $16,561,000          $167,000           $1,727,000     $3,885,000       20
Greenville             $193,916,000        $1,941,000          $38,576,000             $0       87
Greenwood              $127,953,000        $1,276,000          $25,395,000    $61,975,000       66
Hampton                   $6,375,000          $64,000            $363,000              $0       14
Horry                  $194,747,000        $1,947,000           $4,930,000   $130,615,000       85
Jasper                  $59,461,000          $595,000          $56,440,000             $0       21
Kershaw                 $54,636,000          $545,000          $47,714,000             $0       35
Lancaster               $20,671,000          $208,000           $1,074,000    $14,717,000       18
Laurens                 $51,862,000          $521,000          $45,892,000             $0       46
Lee                     $64,653,000          $646,000          $62,391,000             $0       22
Lexington               $60,655,000          $604,000                   $0             $0       57
Marion                    $5,965,000          $60,000                   $0             $0       8
Marlboro                $40,057,000          $400,000          $36,819,000             $0       16
McCormick               $62,902,000          $626,000          $39,710,000             $0       57
Newberry                  $8,973,000          $91,000           $1,171,000             $0       15
Oconee                    $9,082,000          $89,000           $1,013,000             $0       21
Orangeburg             $165,329,000        $1,658,000                   $0   $140,452,000      104
Pickens                $537,606,000        $5,380,000            $768,000    $527,186,000      226
Richland             $1,763,535,000       $17,427,000         $421,886,000   $702,376,000      609
Saluda                    $2,294,000          $23,000                   $0             $0       7
Spartanburg            $195,491,000        $1,951,000          $49,426,000    $58,428,000      106
Sumter                  $69,578,000          $693,000          $19,320,000    $22,640,000       62
Union                     $8,594,000          $86,000            $895,000              $0       18
Williamsburg            $18,628,000          $185,000            $554,000              $0       22
York                   $232,312,000        $2,317,000           $5,332,000   $187,157,000       78
TOTAL                $6,029,431,000       $58,388,000       $1,371,254,000   $2,217,354,0     2,696
  Sources: South Carolina Emergency Management Division, HAZUS-MH                      00



 October 2004 – Updated March 2007             - 15 -                         Hazard Mitigation Plan
Vulnerability Assessment


                                         TABLE 6.7
                   NUMBER OF STATE-OWNED FACILITIES BY AGENCY
               ADJUTANT     SPECIAL                           COMMUNITY HOUSING      STATE
   COUNTY                               SCDOT    UNIVERSITY
               GENERAL       NEEDS                             COLLEGE AUTHORITY      GOV.
 Abbeville           1           0        2             0         0        0           3
 Aiken               2           0        9             16        6        0           7
 Allendale           2          10        2             8         0        0           0
 Anderson            7           5        4             14        11       0           5
 Bamberg             2           0        2             0         18       0           1
 Barnwell            2           0        3             13        0        0           4
 Beaufort            2           2        0             12        11       0          21
 Berkeley            2          14        1             0         4        0          11
 Calhoun             2           0        3             0         0        0           1
 Charleston          2          32        9             61        92       20         75
 Cherokee            0           4        5             0         0        0           6
 Chester             1           0        9             0         0        6           2
 Chesterfield        4           0        5             0         7        0          11
 Clarendon           2          11        3             11        1        0           1
 Colleton            1           4        3             4         45       0           8
 Darlington          3           1        4             0         0        0           2
 Dillon              1           1        3             0         0        0           0
 Dorchester          4          12        3             0         0        0           6
 Edgefield           5          13        4             0         0        0           4
 Fairfield           1           0        3             0         0        0           1
 Florence            4          26       12             45        9        0          19
 Georgetown          1           2        3             3         1        0          10
 Greenville          8          27       11             0         29       0          12
 Greenwood           3          12        7             25        14       0           5
 Hampton             4           1        3             0         1        0           5
 Horry               3           4        8             33        21       7           9
 Jasper              2          12        4             0         0        0           3
 Kershaw             3          12        6             0         0        0          14
 Lancaster           2           3        5             4         0        0           4
 Laurens             3          35        4             0         0        0           4
 Lee                 2          16        3             0         0        0           1
 Lexington           7           0        5             0         25       0          20
 Marion              3           0        3             0         0        0           2
 Marlboro            1           9        3             0         0        0           3
 McCormick           2          10        4             0         28       0          13
 Newberry            3           2        4             0         0        0           6
 Oconee              2           2        4             0         0        0          13
 Orangeburg          2           0        7             67        15       0          13
 Pickens             2           2        7            210        0        0           5
 Richland            9         216       22            139        14       0          209
 Saluda              3           0        4             0         0        0           0
 Spartanburg         8          36        7             10        32       0          13
 Sumter              1          28        5             7         10       0          11
 Union               5           3        2             0         0        0           8
 Williamsburg        6           1        5             0         5        0           5
 York                8           6        6             39        15       0           4
TOTAL               143        574      231            721       414       33         580
Source: South Carolina Emergency Management Division



October 2004 – Updated March 2007            - 16 -                     Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.6
                  STATE-OWNED BUILDINGS OVER 3,000 SQUARE FEET




October 2004 – Updated March 2007      - 17 -               Hazard Mitigation Plan
Vulnerability Assessment


FLOOD
Riverine Flooding
In order to estimate the potential impact of the flood hazard across all counties,
approximate flood hazard areas were delineated. First, using GIS, census block
boundaries were overlaid with major rivers, lakes and streams. Any census blocks
located within 1,000 feet of the centerline of the major water bodies were selected
(Figure 6.7). Exposure, including the total number of buildings, building value and
contents value, was then calculated at the county level. A total of 241,384 buildings,
valued at $49,597,270,000, are located within 1,000 feet of major water bodies.

In order to estimate annualized losses for each county, it was assumed that annualized
losses equal the value of one percent of the total buildings located within 1,000 feet of
major water bodies that were built prior to 19708 in each county. Based on this
assumption, the state of South Carolina may expect almost $315 million in annualized
losses due to riverine flooding. Table 6.8 provides the total number of buildings located
within 1,000 feet of major water bodies by county and Table 6.9 shows the total exposed
value of buildings and contents and estimated annualized loss. Fifteen percent of all
buildings in the state are located within 1,000 feet of water bodies.




8
  According to the FEMA National Flood Insurance Program (NFIP) Community Status Book as of the
date of this writing, communities in the state joined the NFIP program after 1970, which implies that those
buildings constructed after 1970 should comply with the NFIP regulations. Therefore, only pre-1970
structures are considered to be vulnerable to a flood exceeding the 100-year event and are used in
calculating annualized losses for each county.




October 2004 – Updated March 2007                 - 18 -                           Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.7
          CENSUS BLOCKS WITHIN 1,000 FEET OF MAJOR RIVERS AND LAKES




October 2004 – Updated March 2007      - 19 -              Hazard Mitigation Plan
Vulnerability Assessment


                                      TABLE 6.8
          BUILDINGS LOCATED WITHIN 1,000 FEET OF MAJOR WATER BODIES

                                                                    BUILDINGS BUILT
     COUNTY           RESIDENTIAL      BUSINESS   OTHER BUILDINGS
                                                                     PRIOR TO 1970

 Abbeville               1,412             5             4               81%
 Aiken                   3,948            20            10               64%
 Allendale                223              1             2               87%
 Anderson               12,586            78            30               64%
 Bamberg                  512              2             2               96%
 Barnwell                1,138             4             8               73%
 Beaufort                5,209            53             9               42%
 Berkeley                5,569            23             8               39%
 Calhoun                 1,207             3             2               71%
 Charleston             10,200           125            22               80%
 Cherokee                1,920             8             2               70%
 Chester                 2,452            11             6               88%
 Chesterfield            2,107            10             8               79%
 Clarendon               2,928            11             7               79%
 Colleton                2,944            16            10               72%
 Darlington              3,795            17            15               79%
 Dillon                  2,138             9             3               94%
 Dorchester              3,512            17             6               34%
 Edgefield               1,008             3             4               64%
 Fairfield               1,692             7             4               85%
 Florence                9,686            88            26               71%
 Georgetown              3,904            28             5               60%
 Greenville             21,166           226           210               63%
 Greenwood               2,385            27            10               75%
 Hampton                  298              1             1               74%
 Horry                  14,540           149            22               36%
 Jasper                   673              5             3               58%
 Kershaw                 3,705            18             7               66%
 Lancaster               2,627            15             3               71%
 Laurens                 6,259            19            14               72%
 Lee                     1,607             5             2               91%
 Lexington              19,383           138            31               41%
 Marion                  1,392             6             3               85%
 Marlboro                 983              4             2               94%
 McCormick               1,366             3             3               80%
 Newberry                2,892            11             5               81%
 Oconee                 10,594            47            14               62%
 Orangeburg              4,693            29             7               76%
 Pickens                 5,697            27             7               53%
 Richland               13,629          2,345           49               73%
 Saluda                  1,858             6             6               76%
 Spartanburg            21,258           168            53               69%
 Sumter                  4,420            26            14               76%
 Union                   1,501             6             3               98%
 Williamsburg            1,744             9             4               92%
 York                   12,017            83            29               52%
 TOTAL                 236,780          3,911          693               71%
Sources: HAZUS-MH MR2, GIS Analysis



October 2004 – Updated March 2007       - 20 -                  Hazard Mitigation Plan
Vulnerability Assessment

                                                 TABLE 6.9
    TOTAL EXPOSED BUILDING AND CONTENTS VALUE, ESTIMATED ANNUALIZED LOSS FOR
                                 RIVERINE FLOOD
                             TOTAL EXPOSED VALUE (BUILDING AND CONTENTS)           ESTIMATED
             COUNTY                                                                ANNUALIZED
                             RESIDENTIAL         COMMERCIAL         OTHER
                                                                                      LOSS
          Abbeville              $240,074,000          $7,422,000     $8,805,000        $2,207,477
          Aiken                  $493,100,000         $48,620,000   $142,666,000        $5,604,301
          Allendale               $23,122,000                 $0             $0          $201,161
          Anderson              $1,974,865,000       $147,202,000   $142,656,000       $16,349,318
          Bamberg                 $61,901,000                 $0             $0          $594,250
          Barnwell               $114,598,000         $15,202,000    $77,092,000        $2,184,058
          Beaufort               $938,462,000         $46,032,000    $20,123,000        $4,497,242
          Berkeley               $735,777,000         $66,474,000    $39,812,000        $3,698,561
          Calhoun                $153,541,000          $1,998,000     $2,258,000        $1,150,576
          Charleston            $1,982,451,000       $240,551,000    $83,743,000       $21,048,312
          Cherokee               $210,756,000         $14,536,000    $18,645,000        $1,939,826
          Chester                $286,547,000         $23,506,000    $53,263,000        $3,872,748
          Chesterfield           $239,978,000         $70,483,000    $38,474,000        $3,617,347
          Clarendon              $536,124,000         $11,370,000    $15,267,000        $4,656,244
          Colleton               $281,966,000         $26,574,000    $50,277,000        $3,136,810
          Darlington             $468,034,000        $108,909,000   $354,727,000       $11,022,917
          Dillon                 $186,803,000         $14,718,000    $19,710,000        $2,403,195
          Dorchester             $521,011,000         $12,426,000     $6,776,000        $1,902,011
          Edgefield              $163,717,000          $5,290,000    $52,416,000        $1,786,426
          Fairfield              $280,970,000         $15,824,000     $3,992,000        $2,725,117
          Florence              $1,362,018,000       $313,607,000    $97,554,000       $15,508,814
          Georgetown             $387,570,000         $20,971,000    $32,869,000        $2,971,500
          Greenville            $3,168,640,000       $579,627,000   $523,488,000       $33,861,681
          Greenwood              $348,572,000         $18,054,000    $19,939,000        $3,184,185
          Hampton                 $33,766,000                 $0             $0          $249,868
           Horry                $1,565,950,000       $314,200,000   $110,051,000        $8,692,027
Jaspe $80,6$4,08$624,$522,
r     89,006,000 000 632
          0

Kers $563,$30,0$24,8$4,44
haw 714,091,0026,005,417
       00     0    0

Lanc $358,$24,0$18,6$3,14
aster 198,042,0005,008,793
        00     0    0

          $51,0$8,39$7,33
Laur $899,4
ens 88,00083,005,0002,797
              0

Lee $124,$1,98$3,47$1,22
    143,08,0001,0009,055
      00

Lexi $3,85$293,$165,$19,5
ngto 4,733601,0770,071,24
n     ,000 00 00        8

Mari $151,$12,6$18,5$2,18
on 234,023,0038,006,240
       00     0    0




October 2004 – Updated March 2007                   - 21 -                         Hazard Mitigation Plan
Vulnerability Assessment


Marl $101,$10,1$44,5$1,81
boro 557,011,0023,005,226
       00     0    0

McC $245,$5,53$8,55$1,98
ormi 110,03,0002,0001,755
ck     00

New $531,$8,89$4,57$4,52
berry 120,02,0000,0000,156
        00

Ocon $1,69$129,$83,7$13,1
ee 5,044331,028,0051,20
      ,000 00      0    4

Oran $657,$43,1$46,2$6,99
gebu 285,022,0006,003,588
rg     00     0    0

Picke$815,$65,2$46,3$5,50
ns 820,060,0065,007,071
       00     0    0

Richl $2,39$297,$189,$24,5
and 1,027991,0589,073,16
       ,000 00 00        5

Salu $327,$5,28$2,03$2,60
da 573,00,0006,0000,758
       00

Spart $3,22$326,$212,$29,7
anbu 6,296861,0996,011,46
rg     ,000 00 00        9

Sumt $668,$116,$33,6$7,35
er 526,0235,019,008,578
       00 00       0

Unio $201,$2,73$274,$2,03
n    886,06,000 0007,479
       00

Willi $170,$29,7$16,2$2,41
amsb 496,088,0004,004,816
urg     00     0    0

York $2,06$146,$241,$14,7
     1,822536,0184,053,76
      ,000 00 00        2

TOT $35,8$3,72$3,08$314,
AL 86,078,7864,678921,1
    4,000 ,000 ,000 83

          Sources: HAZUS-MH MR2, GIS Analysis, PBS&J calculation

In order to determine the number and value of state-owned facilities located in the
riverine flood hazard area, a GIS analysis was performed. The analysis consisted of
identifying those state-owned facilities that are located in census blocks that intersect
with major river and lakes. This analysis resulted in the identification of 337 facilities


October 2004 – Updated March 2007                 - 22 -              Hazard Mitigation Plan
Vulnerability Assessment

with a value of $562,334,000. Some of the types of buildings identified in this analysis are
nursing homes, maintenance sheds, workshops, education facilities, truck sheds, state park
facilities, corrections facilities, and armories.




October 2004 – Updated March 2007          - 23 -                       Hazard Mitigation Plan
Vulnerability Assessment

The State of South Carolina is currently creating digital Flood Insurance Rate Maps for
the entire state. This project will take several years to complete. Once the digital maps
are available for all counties, a more accurate riverine flood analysis will be conducted.
At the time of this writing, digital floodplain data was available for 12 counties.

Figure 6.8 and Figure 6.9 show general population density and state-owned facility
locations in relation to flood hazard areas in the 12 counties for which digital floodplain
data is currently available. Of the counties with available digital floodplain data,
Charleston County has the largest population located in flood hazard areas, and Richland
County has the most state-owned facilities located in the100-year flood hazard area.




October 2004 – Updated March 2007          - 24 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.8
       GENERAL POPULATION DENSITY IN RELATION TO THE FLOOD HAZARD




October 2004 – Updated March 2007      - 25 -          Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.9
           STATE-OWNED FACILITIES IN RELATION TO THE FLOOD HAZARD




October 2004 – Updated March 2007      - 26 -             Hazard Mitigation Plan
Vulnerability Assessment


Coastal Flooding
Digital floodplain data for seven of the eight coastal counties is available to assist in the
coastal flood hazard vulnerability analysis. Digital floodplain data was not available for
Dorchester County. Therefore, this county could not be analyzed. For those counties
with digital floodplain data, a 100 and 500-year flood hazard analysis was conducted,
including coastal and riverine areas. Population and building exposure values, based on
Census 2000 data, were taken from HAZUS-MH MR2. In order to determine flood
elevation in these areas, U.S. Geological Survey (USGS) Digital Elevation Model (DEM)
data was used in combination with digital floodplain data (Digital Q3 Flood Data). Using
this information, HAZUS-MH was customized to analyze the flood hazard by using a
macro to streamline the flood analysis and estimate flood depths, as well as estimate
losses for a 100- and 500-year flood.

Table 6.10 and Table 6.11 provide exposure and loss estimates for seven coastal
counties using this macro approach for 100- and 500-year flood events including riverine
and coastal flooding. Table 6.12 and Table 6.13 provides exposure and loss estimates
for state-owned facilities located in the seven counties using this macro approach for 100
and 500-year flood events. Figure 6.10 shows Q3 flood data outlining riverine and
coastal floodplain areas located in coastal counties.

                                        TABLE 6.10
       COASTAL FLOOD RISK ANALYSIS WITH Q3 DATA (100-YEAR FLOOD EVENTS)
                                       EXPOSURE FOR 100-YEAR        DAMAGE ESTIMATES FOR 100-
  COUNTY             VULNERABLE POPULATION
                                              EVENT                       YEAR EVENT
     RESIDENTIALOTHERRESIDENTIALOTHERTOTAL

Bea 59,6 $5,9 $1,0 $2,7 $23 $3,0
ufor 10 21,1 43,9 90,0 1,00 21,0
t        48,0 58,0 00 0 00
          00 00

Ber 11,9 $68 $11 $18, $1,7 $19,
kele 50 9,21 0,60 190, 46,0 936,
y       1,00 0,00 000 00 000
           0 0

Cha 119, $9,0 $1,8 $46, $6,7 $53,
rlest 370 63,6 88,7 294, 91,0 085,
on        03,0 04,0 000 00 000
           00 00

Coll 6,10 $49 $45, $3,7 $1,1 $4,9
eton 0 3,00 144, 87,0 81,0 67,0
         8,00 000 00 00 00
            0

Geo 8,16 $78 $10 $1,2 $80, $1,2
rget 0 5,22 7,46 12,0 000 91,0
own     4,00 1,00 00        00
           0 0




October 2004 – Updated March 2007            - 27 -                     Hazard Mitigation Plan
Vulnerability Assessment

Hor 20,4 $2,3 $27 $2,6 $45 $3,0
ry 40 62,2 8,01 01,0 6,00 57,0
         19,0 7,00 00 0 00
          00 0

Jasp 3,51 $15 $22, $23 $9,0 $23
er    0 4,57 936, 0,00 00 9,00
         9,00 000 0           0
            0

TO 229, $19, $3,4 $75, $10, $85,
TA 140 468, 96,8 104, 494, 596,
L       992, 20,0 000 000 000
        000 00

Sources: HAZUS-MH MR2, GIS analysis

                                        TABLE 6.11
       COASTAL FLOOD RISK ANALYSIS WITH Q3 DATA (500-YEAR FLOOD EVENTS)
                                       EXPOSURE FOR 500-YEAR   DAMAGE ESTIMATES FOR 500-
  COUNTY             VULNERABLE POPULATION
                                              EVENT                  YEAR EVENT
     RESIDENTIALOTHERRESIDENTIALOTHERTOTAL

Bea 65,7 $6,3 $1,1 $5,8 $1,0 $6,9
ufor 20 26,9 17,5 63,0 54,0 17,0
t        50,0 90,0 00 00 00
          00 00

Ber 13,5 $78 $14 $22, $2,1 $24,
kele 70 3,93 9,99 040, 15,0 155,
y       0,00 2,00 000 00 000
           0 0

Cha 146, $10, $2,3 $56, $8,7 $65,
rlest 450 893, 88,1 239, 74,0 013,
on        339, 91,0 000 00 000
          000 00

Coll 6,11 $49 $45, $3,8 $1,1 $5,0
eton 0 3,38 189, 73,0 81,0 54,0
         3,00 000 00 00 00
            0

Geo 11,6 $1,0 $15 $1,4 $10 $1,5
rget 70 31,1 2,26 55,0 7,00 63,0
own      51,0 0,00 00 0 00
          00 0

Hor 25,9 $2,8 $34 $5,4 $1,1 $6,6
ry 70 87,0 1,05 58,0 47,0 05,0
         27,0 9,00 00 00 00
          00 0

Jasp 3,73 $16 $22, $38 $9,0 $39
er    0 3,77 974, 7,00 00 6,00
         8,00 000 0           0


October 2004 – Updated March 2007            - 28 -               Hazard Mitigation Plan
Vulnerability Assessment

            0

TO 273, $22, $4,2 $95, $14, $10
TA 220 579, 17,2 315, 387, 9,70
L       558, 55,0 000 000 3,00
        000 00               0

Sources: HAZUS-MH MR2, GIS analysis
                                        TABLE 6.12
   COASTAL FLOOD RISK ANALYSIS WITH Q3 DATA FOR STATE-OWNED FACILITIES
                         (100-YEAR FLOOD EVENTS)
                                                     DAMAGE ESTIMATES FOR 100-YEAR FLOOD
COUNTY          EXPOSURE FOR 100-YEAR FLOOD EVENT
                                                                   EVENT
    BUI BUI CON NU BUI CON
    LDI LDI TEN MB LDI TEN
     NG NG TS ER NG TS
    COU VAL VAL OF VAL VAL
     NT UE UE FAC UE UE
               ILIT
                IES

Bea 48 $35, $35 24 $24, $24
ufor   696, 0,00   954, 4,00
t       000 0       000 0

Ber 0     $0 $0 0       $0 $0
kele
y

Cha 291 $1,3 $10, 145 $67 $6,7
rlest   06,0 436,    5,15 44,0
on      53,0 000     3,00 00
          00            0

Coll 65 $91, $1,2 1 $22 $2,0
eton    372, 18,0   2,00 00
         000 00        0

Geo 20 $16, $16 5 $2,8 $29,
rget   561, 7,00  81,0 000
own     000 0       00

Hor 85 $19 $1,9 4 $2,3 $25,
ry     4,74 47,0  40,0 000
       7,00 00      00
          0

Jasp 21 $59, $59 1 $53 $5,0
er      461, 5,00  0,00 00
         000 0        0

TO 530 $1,7 $14, 180 $70 $7,0
TA     03,8 713,    6,08 49,0
L      90,0 000     0,00 00
         00            0




October 2004 – Updated March 2007           - 29 -                  Hazard Mitigation Plan
Vulnerability Assessment

Sources: HAZUS-MH, GIS analysis

                                       TABLE 6.13
   COASTAL FLOOD RISK ANALYSIS WITH Q3 DATA FOR STATE-OWNED FACILITIES
                         (500-YEAR FLOOD EVENTS)
                                                    DAMAGE ESTIMATES FOR 500-YEAR FLOOD
COUNTY         EXPOSURE FOR 500-YEAR FLOOD EVENT
                                                                  EVENT
    BUI BUI CON NU BUI CON
    LDI LDI TEN MB LDI TEN
     NG NG TS ER NG TS
    COU VAL VAL OF VAL VAL
     NT UE UE FAC UE UE
               ILIT
                IES

Bea 48 $35, $35 26 $25, $25
ufor   696, 0,00   748, 2,00
t       000 0       000 0

Ber 0     $0 $0 0      $0 $0
kele
y

Cha 291 $1,3 $10, 203 $89 $8,9
rlest   06,0 436,    3,88 28,0
on      53,0 000     2,00 00
          00            0

Coll 65 $91, $1,2 1 $22 $2,0
eton    372, 18,0   2,00 00
         000 00        0

Geo 20 $16, $16 6 $3,2 $32,
rget   561, 7,00  01,0 000
own     000 0       00

Hor 85 $19 $1,9 4 $2,3 $25,
ry     4,74 47,0  40,0 000
       7,00 00      00
          0

Jasp 21 $59, $59 1 $53 $5,0
er      461, 5,00  0,00 00
         000 0        0

TO 530 $3,8 $14, 241 $92 $9,2
TA     41,0 713,    5,92 44,0
L      25,0 000     3,00 00
         00            0

Sources: HAZUS-MH, GIS analysis




October 2004 – Updated March 2007          - 30 -                  Hazard Mitigation Plan
Vulnerability Assessment


                                        FIGURE 6.10
                                    DIGITAL Q3 FLOOD DATA




October 2004 – Updated March 2007           - 31 -          Hazard Mitigation Plan
Vulnerability Assessment


Storm Surge
In order to analyze the potential impact of storm surge in coastal counties, a GIS analysis
was conducted using census block data from HAZUS-MH, including building inventory
information, in conjunction with SLOSH modeling. SLOSH (Sea, Lake and Overland
Surges from Hurricanes) is a modeling tool used to estimate storm surge resulting from
historical, hypothetical, or predicted hurricanes. In this analysis, color coded storm surge
inundation areas were created and overlaid with census block data, defining the potential
maximum surge for coastal locations for each category of hurricane, as well as exposed
structures located in those areas.

Due to data limitations, estimated depths of water and potential losses were not
estimated. The resolution of currently available SLOSH data is approximately four
kilometers by four kilometers. In order to perform a functional analysis, it is
recommended that the resolution of this data be no more than 250 meter by 250 meter in
order to estimate and analyze potential flood depths and potential losses. The State of
South Carolina plans to improve the data needed for SLOSH model analysis so that
accurate potential damage assessments can be included in future Plan updates.

Table 6.14 shows the exposure level from storm surge by county in terms of the total
number and value of residential buildings and the total number and value of commercial
buildings for Category 1 through Category 5 storm events. Figure 6.11 shows those
areas likely to be inundated by coastal storm surge during Category 1, 2, 3, 4 and 5
hurricane events.




October 2004 – Updated March 2007          - 32 -                       Hazard Mitigation Plan
Vulnerability Assessment

                                          TABLE 6.14
                                    STORM SURGE EXPOSURE
                               RESIDENTIAL    RESIDENTIAL          COMMERCIAL     COMMERCIAL
  COUNTY      POPULATION
                                BUILDINGS        VALUE              BUILDINGS       VALUE
                                       CATEGORY 1 STORM
Beaufort              50,555           26,196     $6,947,017,000           350      $940,465,000
Berkeley               2,289              860      $442,516,000             21        $43,568,000
Charleston           142,474           55,342    $11,044,059,000           834     $1,842,470,000
Colleton                 942            1,858      $433,323,000             15        $30,828,000
Dorchester                 0                0           $910,000             0                 $0
Georgetown             8,499            4,949     $1,545,267,000            76      $223,755,000
Horry                  9,339            7,737     $2,356,811,000            88      $149,156,000
Jasper                 1,146              461      $231,088,000              3        $69,590,000
                                        CATEGORY 2 STORM
Beaufort              67,700           33,579     $8,172,028,000            434    $1,435,364,000
Berkeley               2,314              872      $495,476,000              21     $110,084,000
Charleston           184,631           72,932    $16,253,912,000          1,012    $2,958,026,000
Colleton               1,406            2,054      $405,424,000              17       $29,024,000
Dorchester                 0                0           $910,000              0                $0
Georgetown            15,400           10,018     $1,002,822,000            123     $247,782,000
Hampton                                               $2,636,000                               $0
Horry                 12,638           10,042     $2,722,991,000           120      $224,652,000
Jasper                 2,099              845      $267,352,000              4        $74,332,000
                                        CATEGORY 3 STORM
Beaufort              91,446           44,041     $8,264,249,000            576    $1,171,890,000
Berkeley               2,410              903      $139,124,000              22       $80,081,000
Charleston           211,577           83,673    $15,746,110,000          1,096    $2,148,046,000
Colleton               2,125            2,408      $393,981,000              17       $23,260,000
Dorchester                22                9           $863,000              0                $0
Georgetown            28,962           15,796     $2,519,874,000            189     $336,668,000
Hampton                   32               12         $1,224,000              0                $0
Horry                 18,880           15,690     $2,948,526,000            173     $292,827,000
Jasper                 4,882            1,891      $205,031,000               8       $20,975,000
                                        CATEGORY 4 STORM
Beaufort             105,377           49,148     $9,017,474,000            639    $1,317,085,000
Berkeley               2,622            1,005      $154,698,000              22       $80,132,000
Charleston           241,939           93,023    $17,661,138,000          1,285    $2,673,218,000
Colleton               3,192            2,831      $436,656,000              18       $24,955,000
Dorchester                22                9           $863,000              0                $0
Georgetown            31,654           16,829     $2,641,396,000            201     $355,625,000
Hampton                   32               12         $1,224,000              0                $0
Horry                 23,711           18,429     $3,466,049,000            225     $380,321,000
Jasper                 7,358            2,750      $308,833,000              18       $45,017,000
                                        CATEGORY 5 STORM
Beaufort            112,470           51,805      $9,435,096,000            677    $1,396,512,000
Berkeley             12,902            4,468       $743,988,000              36     $109,245,000
Charleston          279,791          106,189     $19,680,752,000          1,555    $3,312,904,000
Colleton              3,581            2,981       $451,848,000              18       $26,324,000
Dorchester            6,899            2,393       $441,661,000              10       $15,637,000
Georgetown           39,911           20,169      $3,040,646,000            249     $432,162,000
Hampton                  34               13          $1,291,000              0                $0
Horry                98,155           49,578      $9,164,925,000            850    $1,685,968,000
Jasper               10,098            3,473       $411,751,000              31       $70,810,000
Sources: HAZUS-MH MR2, SLOSH model, GIS analysis



October 2004 – Updated March 2007               - 33 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.11
             STORM SURGE INUNDATION FOR COASTAL SOUTH CAROLINA




October 2004 – Updated March 2007      - 34 -           Hazard Mitigation Plan
Vulnerability Assessment


Repetitive Loss Properties
Another way to gauge flood hazard risk is to identify and analyze the number of
properties that have filed multiple flood insurance claims. Properties that meet this
criterion are typically referred to as repetitive loss properties.9 For planning purposes,
information on repetitive loss properties in the state has been researched and information
is available for each county. To provide a frame of reference for this study, the Federal
Emergency Management Agency’s Repetitive Loss Properties Strategy was used. Table
6.15 provides a general summary of these target properties within the state by
jurisdiction, including the number of repetitive loss properties, the number of claims, the
dollar amount of cumulative losses paid for claims, the average payment per claim and
the number of properties where some form of mitigation measure was implemented.
Local officials maintain specific property information for these repetitive loss properties;
however, details are not included in this plan due to privacy restrictions.

Five counties including Beaufort, Charleston, Dorchester, Georgetown and Horry share
approximately 93 percent of the total repetitive loss properties. Horry County has the
largest number of repetitive loss properties and highest average claim payment. The
statewide average of repetitive loss claims is 2.4. One property in Newberry County
suffered seven claims.




9
  The National Flood Insurance Program (NFIP) definition of repetitive loss is, ―any NFIP-insured property
that, since 1978 and regardless of any change(s) of ownership during that period, has experienced: a) four
or more paid flood losses; or b) two paid flood losses within a 10-year period that equal or exceed the
current value of the insured property; or c) three or more paid losses that equal or exceed the current value
of the insured property.‖ For purposes of the Community Rating System the definition of repetitive loss is,
―a property for which two or more NFIP losses of at least $1,000 each have been paid within any 10-year
rolling period since 1978.‖




October 2004 – Updated March 2007                  - 35 -                            Hazard Mitigation Plan
Vulnerability Assessment


                                      TABLE 6.15
                     GENERAL SUMMARY OF REPETITIVE LOSS PROPERTIES
CO BUI CON LOS PRO
MM LDI TEN SES PER
UNI NG TS      TIE
TY PAY PAY      S
NA ME ME
ME NTS NTS

And $62, $4,9    3    1
erso 251. 74.5
n      43 6
Cou
nty

Ba $20, $4,0     2    1
mbe 691. 90.0
rg,   00 2
City
of

Bea $34 $1,3 18       6
ufor 1,52 60.2
t    2.82 0
Cou
nty

Ber $51, $65     2    1
kele 244. 3.60
y      02
Cou
nty

Cha $32 $44, 55 22
rlest 0,53 919.
on 5.67 43
Cou
nty

Cha $5,7 $1,5 428 156
rlest 06,2 00,4
on, 27.9 48.8
City 1 3
of

Che $38, $13,    2    1
raw, 583. 703.
To 00 20
wn
of

Col $24 $90, 29 10
umb 9,75 599.
ia, 4.43 16
City
of



October 2004 – Updated March 2007        - 36 -                Hazard Mitigation Plan
Vulnerability Assessment


Con $1,0 $20 50 18
way 00,9 0,48
,   17.9 1.37
City 4
of

Darl $10 $22, 11     5
ingt 1,72 353.
on 7.15 44
Cou
nty

Darl $64, $3,0   6   3
ingt 281. 07.8
on, 59 7
City
of

Dor $12 $7,4     9   4
ches 7,30 49.8
ter 8.20 3
Cou
nty

Easl $10 $52     4   2
ey, 4,28 1.73
City 5.36
of

Edis $21 $10, 39 12
to 5,19 575.
Bea 6.87 54
ch,
To
wn
of

Fair $18, $8,0   4   1
fiel 596. 83.0
d      25 0
Cou
nty

Flor $33 $98, 28 13
enc 7,05 481.
e 0.40 44
Cou
nty

Foll $1,2 $19 99 35
y 50,7 7,68
Bea 26.4 0.00
ch,     5
City
of



October 2004 – Updated March 2007   - 37 -   Hazard Mitigation Plan
Vulnerability Assessment


For $20, $00    3   1
est 035.
Acr 62
es,
City
of

Geo $8,4 $1,8 381 178
rget 00,6 19,9
own 77.4 91.0
Cou 3 3
nty

Geo $36 $27 39 13
rget 8,38 8,27
own 5.19 6.35
,
City
of

Gre $1,0 $27 100 39
envi 71,7 0,74
lle 00.3 0.49
Cou 9
nty

Gre $26 $63 27      8
envi 9,03 1,65
lle, 1.51 2.89
City
of

Han $54, $7,5 16    6
aha 706. 38.2
n,    34 8
City
of

Har $8,4 $6,8   2   1
dee 61.0 00.0
ville 1 0
,
To
wn
of

Hilt $71 $13 72 31
on 4,98 1,94
Hea 4.13 5.75
d
Isla
nd,
To
wn
of



October 2004 – Updated March 2007   - 38 -   Hazard Mitigation Plan
Vulnerability Assessment


Hor $14, $2,8 536 220
ry 116, 74,7
Cou 060. 83.1
nty 83 1

Irm $15, $00     2   1
o, 715.
To 45
wn
of

Isle $1,4 $29 71 31
of 75,3 6,24
Pal 17.8 7.36
ms,     7
City
of

Jam $52 $84, 46 19
es 1,05 103.
Isla 5.26 78
nd,
To
wn
of

Jasp $64, $3,1   6   3
er 854. 80.8
Cou 75 5
nty

Lex $64, $20,    9   4
ingt 751. 860.
on     33 00
Cou
nty

Lori $11 $00     3   1
s, 0,11
City 1.98
of

Mar $41, $1,4 11     5
ion 279. 39.5
Cou 59 2
nty

Ma $41 $75, 27       8
uldi 7,77 526.
n, 8.46 91
City
of

Mc $73, $13,     4   2
Clel 296. 400.



October 2004 – Updated March 2007   - 39 -   Hazard Mitigation Plan
Vulnerability Assessment

lans 16 00
ville
,
To
wn
of

Mul $19, $00    4   1
lins, 489.
City 52
of

Myr $1,3 $37 58 26
tle 49,3 7,16
Bea 07.9 1.05
ch,    1
City
of

Ne $4,8 $00     2   1
wbe 34.0
rry    6
Cou
nty

Ne $53, $29, 11     2
wbe 234. 132.
rry, 49 58
City
of

Nor $63 $89, 49 16
th 2,53 290.
Cha 6.47 32
rlest
on,
City
of

Nor $7,9 $1,4 495 213
th 58,9 73,9
Myr 47.7 43.7
tle    2 4
Bea
ch,
To
wn
of

Oco $34, $9,1   2   1
nee 786. 00.0
Cou 40 0
nty

Ora $3,1 $00    2   1
nge 15.5



October 2004 – Updated March 2007   - 40 -   Hazard Mitigation Plan
Vulnerability Assessment

bur     8
g,
City
of

Paw $4,6 $60 136 62
leys 85,8 3,62
Isla 13.1 1.12
nd,     6
To
wn
of

Pick $10 $15,    8   2
ens 1,24 474.
Cou 2.13 00
nty

Port $3,8 00     2   1
Roy 73.9
al,     3
City
of

Ric $15 $81,     5   1
hlan 5,93 367.
d 6.38 41
Cou
nty

Roc $40, $30,    2   1
k 470. 000.
Hill 90 00
,
City
of

Sea $42, $00     3   1
bro 869.
ok    96
Isla
nd,
To
wn
of

Spa $80, $15,    8   4
rtan 624. 052.
bur 82 62
g
Cou
nty

Spa $72, $4,2    8   2
rtan 178. 55.5
bur 96 0



October 2004 – Updated March 2007   - 41 -   Hazard Mitigation Plan
Vulnerability Assessment

g,
City
of

Sull $73 $13 49 20
ivan 6,99 0,89
s 6.17 6.61
Isla
nd,
To
wn
of

Surf $1,2 $24 66 26
side 39,2 2,45
Bea 72.8 2.93
ch,     7
To
wn
of

Wa $18 $60,     2   1
cca 9,83 000.
ma 2.67 00
w
Nec
k
Flo
od
Dist
rict

TO $56, $11, 313 127
TA 077, 962, 6 3
L 221. 300.
     60 11

Source: Federal Emergency Management Agency




October 2004 – Updated March 2007             - 42 -   Hazard Mitigation Plan
Vulnerability Assessment


SEVERE WINDS – HURRICANES AND TROPICAL STORMS
Though the entire state is vulnerable to hurricane winds, coastal areas are more likely to
experience higher winds than inland areas when storms impact the state from the Atlantic
Ocean. Using the HAZUS-MH MR2 hurricane wind model, a probabilistic analysis was
performed to determine annualized losses due to hurricane winds for the state of South
Carolina. To accomplish this, HAZUS-MH MR2 modeled and ranked 100,000 years
worth of possible storms varying in size, strength, speed, and direction, including
potential losses for each event. After modeling these storms, the model calculated the
sum of expected loss for each event and then divided that sum by the number of years in
the simulation (n=100,000), resulting in annualized hurricane wind losses.

Figure 6.12 and Figure 6.13 show the distribution of wind speed during a 100- and 500-
year hurricane wind event by county. Table 6.16 provides hurricane wind exposure and
annualized loss estimates for residential and non-residential buildings. The annualized
losses presented here include damage to structures and contents, but do not include
business interruption losses.         Five counties—Beaufort, Charleston, Dorchester,
Georgetown and Horry—are expected to suffer 75 percent of the total losses in the state
due to hurricane winds, and Charleston County alone could experience one third of the
state’s total losses should a hurricane impact the state.

State-owned facilities were also analyzed using HAZUS-MH MR2 to determine exposure
and estimated damages for two probabilistic hurricane wind event scenarios derived from
the analysis explained above. Table 6.17 provides hurricane wind exposure and loss
estimates for state-owned facilities for 100- and 500- year events, based on the modeled
storm tracks illustrated below. For the 100-year event, the worst-case scenario used
skirts the coast where there is a significant amount of exposure. The 500-year model
proceeds directly inland at a point where there is a high amount of exposure and, unlike
the 100-year event, the higher wind speeds continue inland much farther. It is important
to note that the HAZUS-MH MR2 hurricane model simulates the worst-case scenario for
one area, in this case the
entire state of South
Carolina.      The results
presented in Table 6.17
are the loss contributions
of each county to that
scenario however they do
not represent the highest
loss for any single
county.       Future plan
updates may include
more detailed, county-by-
county        HAZUS-MH
MR2 assessments if
warranted and, as local
and state resources are
available.


October 2004 – Updated March 2007         - 43 -                      Hazard Mitigation Plan
Vulnerability Assessment



                                    FIGURE 6.12
               WIND SPEED MAP FOR 100-YEAR HURRICANE WIND EVENT




                                    FIGURE 6.13
               WIND SPEED MAP FOR 500-YEAR HURRICANE WIND EVENT




October 2004 – Updated March 2007      - 44 -              Hazard Mitigation Plan
Vulnerability Assessment


                                      TABLE 6.16
                    EXPOSURE, ANNUALIZED LOSS FOR HURRICANE
                         RESIDENTIAL BUILDINGS            NON-RESIDENTIAL BUILDINGS
    COUNTY
                   TOTAL EXPOSURE    ANNUALIZED LOSS   TOTAL EXPOSURE ANNUALIZED LOSS
Abbeville           $1,537,435,000          $259,000        $304,336,000          $17,000
Aiken               $9,358,249,000         $3,682,000     $2,085,228,000        $334,000
Allendale             $472,673,000          $366,000        $188,603,000          $75,000
Anderson           $10,468,497,000         $1,654,000     $2,766,335,000        $178,000
Bamberg               $814,139,000          $598,000        $202,759,000          $78,000
Barnwell            $1,143,156,000          $724,000        $348,234,000          $84,000
Beaufort           $10,480,663,000        $44,282,000     $2,359,631,000       $6,157,000
Berkeley            $8,080,917,000        $24,687,000     $1,191,732,000       $2,176,000
Calhoun               $801,232,000          $535,000        $108,900,000          $28,000
Charleston         $23,204,607,000       $123,929,000     $7,181,608,000      $24,998,000
Cherokee            $2,792,389,000          $428,000        $519,430,000          $32,000
Chester             $1,723,848,000          $411,000        $437,248,000          $35,000
Chesterfield        $2,077,358,000          $980,000        $632,801,000        $125,000
Clarendon           $1,633,624,000         $2,115,000       $403,730,000        $278,000
Colleton            $2,017,410,000         $4,414,000       $635,562,000        $637,000
Darlington          $3,333,078,000         $2,560,000     $1,007,718,000        $413,000
Dillon              $1,291,476,000         $1,544,000       $339,365,000        $193,000
Dorchester          $5,817,493,000        $15,788,000     $1,011,268,000       $1,601,000
Edgefield           $1,315,696,000          $372,000        $333,377,000          $42,000
Fairfield           $1,258,833,000          $341,000        $259,497,000          $26,000
Florence            $6,994,554,000         $7,951,000     $2,636,496,000       $1,614,000
Georgetown          $3,913,901,000        $21,213,000       $876,945,000       $2,860,000
Greenville         $26,496,080,000         $3,754,000   $12,463,712,000         $619,000
Greenwood           $4,178,892,000          $830,000      $1,554,776,000        $117,000
Hampton               $925,865,000         $1,298,000       $250,258,000        $163,000
Horry              $15,204,761,000        $83,970,000     $3,727,924,000      $13,950,000
Jasper                $927,641,000         $2,254,000       $279,099,000        $378,000
Kershaw             $3,221,379,000         $1,405,000       $732,365,000        $130,000
Lancaster           $3,353,874,000          $969,000        $719,495,000          $86,000
Laurens             $3,801,561,000          $673,000        $654,645,000          $40,000
Lee                   $828,913,000          $613,000        $144,952,000          $57,000
Lexington          $15,061,364,000         $6,193,000     $3,585,033,000        $661,000
Marion              $1,514,354,000         $2,904,000       $481,465,000        $497,000
Marlboro            $1,264,666,000          $905,000        $311,391,000        $111,000
McCormick             $568,350,000          $121,000         $88,703,000           $6,000
Newberry            $2,226,105,000          $610,000        $385,906,000          $41,000
Oconee              $4,319,707,000          $530,000        $786,580,000          $33,000
Orangeburg          $4,789,305,000         $4,069,000     $1,313,868,000        $548,000
Pickens             $6,598,174,000          $784,000      $1,076,283,000          $45,000
Richland           $22,808,035,000         $9,300,000   $26,804,758,000        $9,357,000
Saluda              $1,192,925,000          $356,000        $230,319,000          $26,000
Spartanburg        $16,316,770,000         $2,377,000     $4,778,185,000        $253,000
Sumter              $5,530,323,000         $4,360,000     $1,540,297,000        $674,000
Union               $1,674,692,000          $330,000        $320,928,000          $25,000
Williamsburg        $1,494,884,000         $3,272,000       $437,402,000        $481,000
York               $10,701,411,000         $2,229,000     $2,587,675,000        $197,000
TOTAL             $255,383,323,000       $392,966,000 $91,086,822,000.00      $69,903,000
Source: HAZUS-MH MR2




October 2004 – Updated March 2007         - 45 -                      Hazard Mitigation Plan
         Vulnerability Assessment

                                          TABLE 6.17
         DAMAGE ESTIMATES TO STATEOWNED FACILITIES FOR 100- AND 500-YEAR HURRICANE EVENT
                                         SCENARIOS
COUNTY          FACILITIES EXPOSED       DAMAGE FROM 100-YEAR EVENT      DAMAGE FROM 500-YEAR EVENT
             BUILDINGCONTENTS TOTAL BUILDINGCONTENTS TOTAL
             DAMAGE DAMAGE DAMAGE DAMAGE DAMAGE DAMAGE

         Abb 6     $0 $0 $0 $0 $0 $0
         evill
         e

         Aik 40    $0 $0 $0 $3,3 $0 $3,3
         en                  96      96

         Alle 22 $1,8 $0 $1,8 $1,6 $0 $1,6
         ndal     68      68 99        99
         e

         And 46    $0 $0 $0 $4,8 $0 $4,8
         erso                89      89
         n

         Ba 23 $87 $0 $87 $32, $0 $32,
         mbe     1      1 312     312
         rg

         Bar 22 $12 $0 $12 $3,1 $0 $3,1
         nwe      9      9 76       76
         ll

         Bea 48 $2,2 $11, $2,2 $3,2 $11, $3,2
         ufor   22,9 213 34,1 33,8 400 45,2
         t       81        94 05          05

         Ber 32 $77 $3,8 $77 $9,2 $46, $9,3
         kele   4,77 39 8,60 94,1 209 40,3
         y         0       9 76         85

         Cal 6     $0 $0 $0 $10 $0 $10
         hou               0,90   0,90
         n                    4      4

         Cha 291 $15 $77 $15 $34 $1,7 $35
         rlest  5,50 6,69 6,28 9,84 47,2 1,58
         on     7,76 2 4,45 2,44 54 9,69
                   3         5 2            6

         Che 15    $0 $0 $0 $81, $0 $81,
         roke               794     794
         e

         Che 18    $0 $0 $0 $21 $1,0 $21
         ster              0,29 22 1,31
                              6        8

         Che 27 $1,4 $0 $1,4 $13, $0 $13,
         sterf   74      74 306      306


         October 2004 – Updated March 2007       - 46 -                Hazard Mitigation Plan
Vulnerability Assessment

ield

Clar 29 $10 $86 $10 $14, $11 $15,
end     0,30 3 1,16 948, 1,09 059,
on         2      5 487 3 580

Coll 65 $86, $51 $87, $2,8 $1,7 $2,8
eton    685 2 197 93,8 82 95,6
                       90        72

Darl 10 $3,3 $0 $3,3 $94, $0 $94,
ingt     92      92 475      475
on

Dill 5 $6,9 $0 $6,9 $21 $1,0 $22
on      77      77 9,29 82 0,37
                      6        8

Dor 25 $2,8 $1,7 $2,8 $30, $33, $30,
ches   93,8 82 95,6 694, 373 728,
ter     90        72 763        136

Edg 26    $0 $0 $0 $2,2 $0 $2,2
efiel               32      32
d

Fair 5    $0 $0 $0 $28, $0 $28,
fiel               895     895
d

Flor 115 $38 $1,9 $39 $1,2 $6,2 $1,2
enc     9,28 50 1,23 37,8 04 44,0
e          6        6 00         04

Geo 20 $2,2 $11, $2,2 $2,2 $11, $2,2
rget   22,9 213 34,1 33,8 400 45,2
own     81        94 05          05

Gre 87    $0 $0 $0 $18 $94 $18
envi              8,05 1 8,99
lle                  5       6

Gre 66    $0 $0 $0 $32, $0 $32,
enw                939     939
ood

Ha 14 $71 $0 $71 $71 $0 $71
mpt     2      2 7        7
on

Hor 85 $33, $16 $33, $51, $1,7 $53,
ry     052, 5,41 218, 883, 59,7 643,
       665 7 082 548 36 284

Jasp 21 $48 $19, $50 $1,8 $36, $1,8
er      9,28 950 9,23 37,8 204 74,0



October 2004 – Updated March 2007      - 47 -   Hazard Mitigation Plan
Vulnerability Assessment

           6        6 00        04

Ker 35    $0 $0 $0 $1,0 $4,9 $1,0
sha                10,7 82 15,7
w                   58        40

Lan 18 $1,4 $0 $1,4 $1,8 $9,0 $1,8
cast    29      29 01,3 43 10,4
er                   59        02

Lau 46    $0 $0 $0 $14 $74 $14
rens              7,40 0 8,14
                     2       2

Lee 22 $21, $10 $21, $44, $7,7 $52,
       814 9 923 553 07 260

Lex 57 $1,5 $8 $1,5 $20 $0 $20
ingt    55      63 0,90   0,90
on                    4      4

Mar 8 $87, $0 $87, $2,8 $0 $2,8
ion   475     475 01        01

Mar 16 $8,2 $0 $8,2 $5,0 $0 $5,0
lbor    21      21 87        87
o

Mc 57     $0 $0 $0 $2,0 $0 $2,0
Cor                 18      18
mic
k

Ne 15     $0 $0 $0 $89, $0 $89,
wbe                634     634
rry

Oco 21    $0 $0 $0 $0 $0 $0
nee

Ora 104 $36, $0 $36, $6,7 $33, $6,8
nge     932     932 68,9 950 02,9
bur                   77        27
g

Pick 226 $0 $0 $0 $55, $0 $55,
ens               648     648

Ric 609 $67, $0 $67, $11, $85 $12,
hlan    071     071 998, 5,64 853,
d                    347 3 990

Salu 7    $0 $0 $0 $95 $0 $95
da                   9      9

Spa 106 $0 $0 $0 $52$13, $53



October 2004 – Updated March 2007     - 48 -   Hazard Mitigation Plan
Vulnerability Assessment

rtan                    4,69 466 8,16
bur                        8        4
g

Su 62 $13, $0 $13, $15, $76, $15,
mte   534     534 307, 162 383,
r                  205       367

Uni 18     $0 $0 $0 $12 $61 $12
on                 5,09 8 5,71
                      4       2

Will 22 $28 $1,4 $28 $3,7 $18, $3,8
iam     4,19 04 5,60 93,0 927 12,0
sbur       6       0 79         06
g

Yor 78     $0 $0 $0 $1,2 $32, $1,2
k                   54,7 674 87,4
                     89        63

TO 2,69 $19 $99 $19 $51 $4,8 $51
TA 6 8,27 4,95 9,27 2,25 21,6 7,07
L      8,25 2 3,21 2,20 12 3,82
          9       1 9            1

Source: South Carolina Emergency Management Division, HAZUS-MH
THUNDERSTORMS
According to the historical data collected by the National Climatic Data Center since
1950, approximately 2.59 thunderstorm events occur annually per county. Because it
cannot be predicted where thunderstorms may occur, all buildings and facilities are
considered to be exposed to this hazard and could be impacted.

Annualized loss estimates for thunderstorms were calculated by multiplying the total
property damage recorded for past thunderstorm events by county by the average annual
number of thunderstorms per county. Based on this calculation, it is estimated that the
annualized losses due to thunderstorms in the state of South Carolina total $18,823,934.
This number is expected to increase as the state population grows over time. Table 6.18
shows the total exposure, average annual number of thunderstorm events by wind speed,
estimated annualized loss and projected annualized loss in 2025 by county.




October 2004 – Updated March 2007                      - 49 -       Hazard Mitigation Plan
Vulnerability Assessment


                                        TABLE 6.18
  EXPOSURE, AVERAGE ANNUAL NUMBER OF THUNDERSTORM OCCURRENCES, POTENTIAL
                              ANNUALIZED LOSS
                                                ANNUAL
                              TOTAL BUILDING   NUMBER OF    ESTIMATED
                 COUNTY
                                EXPOSURE     THUNDERSTORM ANNUALIZED LOSS
                                              OCCURENCES
               Abbeville       $1,841,771,000        1.88         $429,036
               Aiken          $11,443,477,000        3.75          $52,922
               Allendale         $661,276,000        1.10          $39,918
               Anderson       $13,234,832,000        5.12         $867,930
               Bamberg         $1,016,898,000        1.61          $63,235
               Barnwell        $1,491,390,000        1.57         $501,340
               Beaufort       $12,840,294,000        2.33         $133,310
               Berkeley        $9,272,649,000        3.02         $299,579
               Calhoun           $910,132,000        1.49         $272,832
               Charleston     $30,386,215,000        3.98         $143,712
               Cherokee        $3,311,819,000        2.78         $845,758
               Chester         $2,161,096,000        1.73         $309,968
               Chesterfield    $2,710,159,000        1.73         $398,355
               Clarendon       $2,037,354,000        1.90         $158,148
               Colleton        $2,652,972,000        3.41         $193,807
               Darlington      $4,340,796,000        2.06         $683,615
               Dillon          $1,630,841,000        1.43       $1,999,895
               Dorchester      $6,828,761,000        2.78         $108,689
               Edgefield       $1,649,073,000        1.22          $11,272
               Fairfield       $1,518,330,000        1.76          $19,027
               Florence        $9,631,050,000        2.82         $360,991
               Georgetown      $4,790,846,000        1.53         $405,753
               Greenville     $38,959,792,000        6.20         $707,262
               Greenwood       $5,733,668,000        2.84         $398,449
               Hampton         $1,176,123,000        1.61          $63,442
               Horry          $18,932,685,000        3.31       $1,088,414
               Jasper          $1,206,740,000        1.33          $62,885
               Kershaw         $3,953,744,000        2.53         $896,802
               Lancaster       $4,073,369,000        1.63         $218,745
               Laurens         $4,456,206,000        3.61         $573,556
               Lee               $973,865,000        1.24          $16,865
               Lexington      $18,646,397,000        5.02          $99,517
               Marion          $1,995,819,000        1.57         $755,958
               Marlboro        $1,576,057,000        1.61         $378,576
               McCormick         $657,053,000        0.86         $121,790
               Newberry        $2,612,011,000        2.20          $39,737
               Oconee          $5,106,287,000        3.31       $2,747,583
               Orangeburg      $6,103,173,000        4.02          $57,579
               Pickens         $7,674,457,000        3.35         $297,514
               Richland       $49,612,793,000        4.69         $115,515
               Saluda          $1,423,244,000        1.41          $72,786
               Spartanburg    $21,094,955,000        6.20         $349,221
               Sumter          $7,070,620,000        2.71         $422,793
               Union           $1,995,620,000        2.20         $223,276
               Williamsburg    $1,932,286,000        1.24         $418,182
               York           $13,289,086,000        3.43         $398,400



October 2004 – Updated March 2007           - 50 -                  Hazard Mitigation Plan
Vulnerability Assessment

                                               ANNUAL
                             TOTAL BUILDING   NUMBER OF    ESTIMATED
                 COUNTY
                               EXPOSURE     THUNDERSTORM ANNUALIZED LOSS
                                             OCCURENCES
               TOTAL        $346,618,081,000   2.59             $18,823,934
               Sources: HAZUS-MH MR2, NCDC, PBS&J calculation




October 2004 – Updated March 2007         - 51 -                     Hazard Mitigation Plan
Vulnerability Assessment


TORNADOES
During the 57 year history of records maintained by the National Climatic Data Center
(NCDC), 817 tornadoes have been reported in South Carolina, including 15 events of F–4
magnitude. According to past tornado damages recorded by the NCDC, statewide
damages equal an estimated $1,205,905,658. Because the location of tornado strikes
cannot be predicted, all buildings and facilities are considered to be equally exposed to
this hazard and could potentially be impacted.

Annualized losses were calculated by dividing the total damages sustained across each
county by the number of years of recorded events. Table 6.19 shows the average annual
number of tornado events recorded by county (expressed as an annual percentage), total
building exposure, and estimated potential annualized losses by county.




October 2004 – Updated March 2007         - 52 -                     Hazard Mitigation Plan
Vulnerability Assessment


                                       TABLE 6.19
    ANNUAL CHANCE OF A TORNADO, TOTAL EXPOSURE, AND ANNUALIZED LOSS
                                  ANNUAL                          ESTIMATED
                                CHANCE OF A      TOTAL BUILDING
                   COUNTY                                         ANNUALIZED
                                 TORNADO           EXPOSURE
                                                                     LOSS
                Abbeville          0.23        $1,841,771,000      $1,281,513
                Aiken              0.44       $11,443,477,000         $57,489
                Allendale          0.19          $661,276,000         $29,396
                Anderson           0.44       $13,234,832,000        $290,898
                Bamberg            0.19        $1,016,898,000        $115,063
                Barnwell           0.25        $1,491,390,000        $504,521
                Beaufort           0.37       $12,840,294,000         $53,738
                Berkeley           0.46        $9,272,649,000        $199,593
                Calhoun            0.18          $910,132,000         $39,639
                Charleston         0.63       $30,386,215,000        $305,381
                Cherokee           0.26        $3,311,819,000        $296,274
                Chester            0.18        $2,161,096,000        $266,251
                Chesterfield       0.37        $2,710,159,000      $1,127,774
                Clarendon          0.40        $2,037,354,000        $124,215
                Colleton           0.28        $2,652,972,000          $6,346
                Darlington         0.35        $4,340,796,000        $192,061
                Dillon             0.21        $1,630,841,000        $592,568
                Dorchester         0.26        $6,828,761,000        $173,058
                Edgefield          0.19        $1,649,073,000         $82,140
                Fairfield          0.30        $1,518,330,000      $1,173,327
                Florence           0.51        $9,631,050,000        $113,433
                Georgetown         0.21        $4,790,846,000        $152,914
                Greenville         0.37       $38,959,792,000        $537,160
                Greenwood          0.25        $5,733,668,000        $812,506
                Hampton            0.21        $1,176,123,000         $32,193
                Horry              0.61       $18,932,685,000        $783,441
                Jasper             0.14        $1,206,740,000          $3,551
                Kershaw            0.33        $3,953,744,000      $1,068,812
                Lancaster          0.14        $4,073,369,000      $1,205,584
                Laurens            0.19        $4,456,206,000      $1,289,628
                Lee                0.12          $973,865,000          $5,984
                Lexington          0.37       $18,646,397,000      $1,667,610
                Marion             0.14        $1,995,819,000        $167,925
                Marlboro           0.25        $1,576,057,000      $2,195,834
                McCormick          0.19          $657,053,000         $23,782
                Newberry           0.46        $2,612,011,000      $1,738,768
                Oconee             0.37        $5,106,287,000        $213,080
                Orangeburg         0.77        $6,103,173,000        $336,578
                Pickens            0.32        $7,674,457,000        $138,311
                Richland           0.56       $49,612,793,000        $408,806
                Saluda             0.16        $1,423,244,000        $189,020
                Spartanburg        0.44       $21,094,955,000        $447,239
                Sumter             0.28        $7,070,620,000        $439,094
                Union              0.19        $1,995,620,000        $148,347
                Williamsburg       0.19        $1,932,286,000         $41,344
                York               0.32       $13,289,086,000         $84,027
                TOTAL                        $346,618,081,000     $21,156,239
                 Sources: NCDC, HAZUS-MH, PBS&J calculation




October 2004 – Updated March 2007             - 53 -                    Hazard Mitigation Plan
Vulnerability Assessment


WILDFIRE
In order to conduct a vulnerability analysis for wildfire in the state, data was obtained
from South Carolina Forestry Commission (SCFC), including the total number of annual
wildfires and damage area (burn acres) dating from 1998 to 2006. During this period,
35,332 wildfires were recorded, translating into 96 wildfires per year by county.
Annualized loss estimates for wildfire were calculated for each county by multiplying the
annual average number of acres burned from recorded past wildfires by the average
damage per acre ($76.20), which was obtained from the 1996 SCFC Annual Report.
Based on this calculation, it is estimated that the annualized losses due to wildfire in the
state of South Carolina total $1,748,750. Table 6.20 shows total forest acres in South
Carolina, average annual number of wildfires, average acreage burned and an estimated
annualized loss by county.




October 2004 – Updated March 2007          - 54 -                       Hazard Mitigation Plan
Vulnerability Assessment


                                     TABLE 6.20
  ANNUAL NUMBER OF WILDFIRE OCCURRENCES, POTENTIAL ANNUALIZED LOSSES
                                      ANNUAL
                    TOTAL FOREST
                                    NUMBER OF      AVERAGE BURN      ESTIMATED
      COUNTY        LAND (ACRES)
                                    WILDFIRES        ACREAGE       ANNUALIZED LOSS
                       IN 2002
                                     (1998-2006)
 Abbeville              248,551          49             132.1                 $10,066
 Aiken                  524,743         157              625                  $47,625
 Allendale              199,005          20            139.26                 $10,612
 Anderson               216,023          40            170.73                 $13,010
 Bamberg                202,862          38            190.87                 $14,544
 Barnwell               266,959         .38            196.64                 $14,984
 Beaufort               130,448          63            393.12                 $29,956
 Berkeley               595,291         234           1832.44                $139,632
 Calhoun                151,294          45            170.84                 $13,018
 Charleston             318,526          79             623.7                 $47,526
 Cherokee               168,077          36            204.82                 $15,607
 Chester                315,565          34            166.73                 $12,705
 Chesterfield           416,239         116            539.32                 $41,096
 Clarendon              238,952         137            922.38                 $70,285
 Colleton               560,896         175           1185.94                 $90,369
 Darlington             176,333         113            530.99                 $40,461
 Dillon                 163,935          64            386.23                 $29,431
 Dorchester             272,524          87            531.61                 $40,509
 Edgefield              279,433          27             97.68                   $7,443
 Fairfield              408,433          55            248.99                 $18,973
 Florence               308,707         207           1293.12                 $98,536
 Georgetown             400,136          96            894.99                 $68,198
 Greenville             296,082          52            267.91                 $20,415
 Greenwood              205,593          38            126.24                   $9,619
 Hampton                303,663          83             282.5                 $21,527
 Horry                  493,012         172           1424.16                $108,521
 Jasper                 341,036         118            977.66                 $74,498
 Kershaw                376,376          98             526.7                 $40,135
 Lancaster              291,845          41            160.44                 $12,226
 Laurens                337,499          41            171.80                 $13,091
 Lee                    121,735          80            594.94                 $45,334
 Lexington              256,939         184            399.12                 $30,413
 Marion                 226,896          43             256.3                 $19,530
 Marlboro               226,676          75            414.52                 $31,586
 McCormick              223,394          28            114.24                  $ 8,705
 Newberry               334,566          29            123.22                   $9,389
 Oconee                 292,590          48            157.01                 $11,964
 Orangeburg             446,887         212            974.34                 $74,245
 Pickens                236,029          60            181.21                 $13,808
 Richland               352,904          75            464.62                 $35,404
 Saluda                 196,376          32            116.77                  $ 8,898
 Spartanburg            286,496          41            164.89                 $12,565
 Sumter                 268,338         135           1129.30                 $86,053
 Union                  277,640          33            120.72                   $9,199
 Williamsburg           407,761         259           2207.67                $168,224
 York                   293,768          37             115.7                   $8,816



October 2004 – Updated March 2007         - 55 -                  Hazard Mitigation Plan
Vulnerability Assessment

 AVG/COUNTY               296,892              96                 498.90                      $38,016
 TOTALSTATE              13,657,033           3926               22,949.43                 $1,748,750
Sources: South Carolina Forestry Commission, PBS&J calculation
Statewide wildfire risk maps do not exist for South Carolina at this time; therefore, in
order to determine the vulnerability of state facilities to the wildfire hazard, a GIS
analysis was conducted. The analysis identified all state facilities (greater than 3,000 sq
ft) located within five (5) miles of US Forest Service lands, and State and National
(Congaree National Monument) parks. As a result of this analysis, a total of 583
facilities were identified. The value of those facilities located within five miles of US
Forest Service lands was determined to be $251,873,000. The value of those facilities
located within five miles of state parks was determined to be $711,441,000. There were
no state facilities located within five miles of Congaree National Monument. As better
wildfire risk data becomes available in the future, the assessment of state facilities at risk
to the wildfire hazards will be modified.
Some of the types of buildings identified in this analysis are maintenance sheds,
workshops, education facilities, truck sheds, state park facilities, corrections facilities,
state hospitals and armories.


DROUGHT
Drought can impact natural systems as well as the ability of our cities, towns and
neighborhoods to function effectively. Specific effects may include a reduction in the
production of food grains and other crops, the size and quality of livestock and fish,
available forage for livestock and wildlife and the availability of water supplies needed
by communities and industry. While the entire state is vulnerable to drought, estimated
losses are difficult to calculate because drought causes little damage to the built
environment. Since the agricultural sector is often the most directly affected and data is
available to assess the impact of drought on this sector, this study will focus on
agricultural loss estimation. It is assumed that all buildings and facilities are exposed to
drought but would experience negligible damage.

Because NCDC records do not provide accurate dollar amounts for losses associated with reported drought
events, the following methodology for determining an annualized loss amount was used. First, it was
assumed that only non-irrigated land, including all crops and 50 percent of livestock
located on non-irrigated land, would be affected. The South Carolina State Climatology
Office provided probability factors for use in this analysis. It was also assumed that the
incipient dry spell condition (PDSI –0.5 and 0.99) will damage 1 percent of agricultural
products, moderate drought will damage 15 percent of the agricultural products, severe
drought will damage 30 percent of agricultural products and extreme drought will
damage 60 percent of the total vulnerable agricultural products based on historical
damages. Market values used in this analysis for crops, livestock, livestock products, and
agricultural production were taken from the United States Department of Agriculture’s
2002 Census of Agriculture. Annualized loss was calculated by multiplying the total
assumed agricultural value (the sum of total crop value and 50 percent of livestock value
on non-irrigated lands) by probability of drought by classification, then multiplying that
result by the severity by classification. The results of these calculations were then


October 2004 – Updated March 2007               - 56 -                          Hazard Mitigation Plan
Vulnerability Assessment

summed to calculate one annualized loss to include all classifications of drought by
county.

Table 6.21 shows the total harvested cropland, irrigated land, the market value of crops,
the market value of livestock and their products and the total market value of agricultural
production in the state. Table 6.22 shows the percent of non-irrigated land, estimated
annualized loss and percent cropland change during 1987 and 1997 and the projected
cropland loss by 2007 for each county in the state of South Carolina. Horry County is
expected to experience over $4 million in annualized losses, and 24 counties are expected
to suffer more than $1 million in annualized losses due to drought. These annualized
losses are expected to increase by 7 percent by 2025.




October 2004 – Updated March 2007          - 57 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                    TABLE 6.21
          CROPLAND EXPOSURE AND VALUE OF AGRICULTURAL PRODUCTION
JUR TOT IRRI MA MA MA
ISDI AL GAT RKE RKE RKE
CTI HAR ED T        T  T
 ON VES LAN VAL VAL VAL
    TED D UE UE UE
    CRO (AC OF OF OF
    PLA RES CRO LIV TOT
     ND ) PS EST AL
     (AC     (200 OC AGR
    RES       2) K, ICU
       )         POU LTU
                  LTR RAL
                   Y PRO
                 AND DUC
                 THE TIO
                   IR N
                 PRO (200
                 DUC 2)
                   TS
                  (200
                   2)

Abb 13,4 625 $2,8 $8,3$11,
evill 74     49,0 06,0155,
e              00 00 000

Aik 29,2 1,79 $7,9 $42,$50,
en 67 9 49,0 501,450,
                00 000 000

Alle 36,9 7,88 $8,3 $2,0$10,
ndal 79 9 26,0 53,0379,
e                00 00 000

And 38,8 996 $14, $22,$37,
erso 06      916, 130,046,
n             000 000 000

Ba 29,8 4,75 $10, $4,8$15,
mbe 29 4 206, 55,0061,
rg            000 00 000

Bar 18,9 1,31 $4,6 $2,3$7,0
nwe 95 3 94,0 74,068,0
ll              00 00 00

Bea 3,36 587 $9,4 $39$9,8
ufor 8       87,0 4,0081,0
t              00 0 00

Ber 7,85 602 $24, $1,0$25,
kele 5       886, 80,0966,
y             000 00 000

Cal 29,5 4,61 $7,9 $3,6$11,
hou 24 7 63,0 18,0581,
n               00 00 000




October 2004 – Updated March 2007      - 58 -           Hazard Mitigation Plan
Vulnerability Assessment

Cha 5,10 1,66 $15, $2,0$18,
rlest 5 6 983, 85,0068,
on             000 00 000

Che 10,7 442 $1,8 $22,$23,
roke 24      90,0 100,990,
e              00 000 000

Che 14,3 221 $1,5 $16,$17,
ster 70      17,0 060,577,
               00 000 000

Che 26,2 1,26 $7,7 $54,$62,
sterf 26 9 14,0 702,416,
ield            00 000 000

Clar 71,4 1,70 $28, $33,$61,
end 39 4 121, 499,620,
on              000 000 000

Coll 15,6 1,28 $10, $2,8$13,
eton 34 7 323, 75,0198,
                000 00 000

Darl 68,1 948 $18, $20,$39,
ingt 71       866, 712,578,
on             000 000 000

Dill 78,2 1,92 $22, $46,$69,
on 39 8 793, 454,247,
                000 000 000

Dor 18,0 175 $2,6 $10,$12,
ches 84      34,0 025,659,
ter            00 000 000

Edg 15,0 5,30 $44, $3,9$48,
efiel 75 4 560, 94,0554,
d              000 00 000

Fair 8,17 250 $75 $15,$16,
fiel 2       2,00 555,307,
d               0 000 000

Flor 79,5 2,50 $29, $5,2$35,
enc 44 5 761, 94,0055,
e               000 00 000

Geo 8,69 1,32 $21, $1,9$23,
rget 5 5 967, 75,0942,
own            000 00 000

Gre 17,3 1,76 $14, $3,2$18,
envi 37 0 873, 81,0154,
lle            000 00 000




October 2004 – Updated March 2007   - 59 -   Hazard Mitigation Plan
Vulnerability Assessment

Gre 10,3 179 $1,2 $4,5$5,7
enw 48       11,0 08,019,0
ood            00 00 00

Ha 26,5 2,67 $5,5 $66$6,1
mpt 49 4 15,0 1,0076,0
on             00 0 00

Hor 69,9 741 $38, $15,$54,
ry 74        571, 880,451,
              000 000 000

Jasp 7,73 2,73 $8,2 $30$8,5
er    2 7 41,0 3,0044,0
                 00 0 00

Ker 9,90 903 $2,0 $82,$84,
sha 6        81,0 394,475,
w              00 000 000

Lan 14,5 443 $1,6 $44,$45,
cast 16      60,0 050,710,
er             00 000 000

Lau 24,3 525 $2,0 $13,$15,
rens 26      69,0 579,648,
               00 000 000

Lee 63,7 1,07 $10, $23,$33,
     21 2 413, 262,675,
               000 000 000

Lex 29,3 7,26 $34, $61,$95,
ingt 62 2 602, 110,712,
on             000 000 000

Mar 36,6 575 $16, $7,8$24,
ion 30       352, 04,0156,
              000 00 000

Mar 57,0 2,13 $10, $11,$22,
lbor 74 6 853, 665,518,
o              000 000 000

Mc 1,90 15 $13 $1,3$1,5
Cor 0      2,00 97,029,0
mic           0 00 00
k

Ne 23,1 1,08 N/A N/A N/A
wbe 14 7
rry

Oco 17,1 545 N/A N/A N/A
nee 72




October 2004 – Updated March 2007   - 60 -   Hazard Mitigation Plan
Vulnerability Assessment

Ora 107, 16,8 $32, $36,$69,
nge 237 08 355, 773,128,
bur            000 000 000
g

Pick 9,34 847 $5,2 $1,4$6,6
ens 0         20,0 55,075,0
                00 00 00

Ric 14,7 516 N/A N/A N/A
hlan 49
d

Salu 23,2 3,50 $5,5 $58,$64,
da 83 4 11,0 527,038,
                 00 000 000

Spa 29,1 1,90 $16, $8,9$25,
rtan 25 8 308, 57,0265,
bur            000 00 000
g

Su 62,0 5,53 $15, $39,$55,
mte 03 7 274, 872,146,
r             000 000 000

Uni 6,01 147 N/A N/A N/A
on 1

Will 61,8 758 $22, $5,2$27,
iam 55        367, 77,0644,
sbur           000 00 000
g

Yor 23,7 757 N/A N/A N/A
k    78

TOTAL             1,374,617       95,642        $593,245,000       $896,505,000     $1,285,161,000
Source: USDA 2002 Agriculture Census
                                            TABLE 6.22
             ESTIMATED DROUGHT ANNUALIZED LOSS AND PROJECTED LOSS
                                PERCENT NON-       ESTIMATED           CROPLAND CHANGE
                COUNTY
                               IRRIGATED LAND    ANNUALIZED LOSS        1997-2002 (ACRES)
             Abbeville              95%                    $363,908                -3,583
             Aiken                  94%                   $1,493,553               +5,374
             Allendale              79%                    $445,114                +6,515
             Anderson               97%                   $1,369,496               -1,863
             Bamberg                84%                    $642,512               +12,163
             Barnwell               93%                    $331,206               +13,144
             Beaufort               83%                    $483,770                +1,813
             Berkeley               92%                   $1,420,381               +4,075
             Calhoun                84%                    $498,752               +21,948
             Charleston             67%                    $693,892                +2,931
             Cherokee               96%                    $672,345                +1,335
             Chester                98%                    $512,309                -3,180



October 2004 – Updated March 2007                - 61 -                         Hazard Mitigation Plan
Vulnerability Assessment

                          PERCENT NON-      ESTIMATED            CROPLAND CHANGE
             COUNTY
                         IRRIGATED LAND   ANNUALIZED LOSS         1997-2002 (ACRES)
           Chesterfield         95%                 $1,778,531               +6,562
           Clarendon            98%                 $2,860,155              +27,224
           Colleton             92%                  $652,938               +14,988
           Darlington           99%                 $1,535,873              +33,163
           Dillon               98%                 $2,355,780              -14,020
           Dorchester           99%                  $444,303               +10,138
           Edgefield            65%                 $1,644,611               +1,397
           Fairfield            97%                  $450,637                -3,834
           Florence             97%                 $1,672,949              +16,447
           Georgetown           85%                 $1,037,034                +283
           Greenville           90%                  $657,283                -2,295
           Greenwood            98%                  $181,368                -1,176
           Hampton              90%                  $318,033               +21,275
           Horry                99%                 $2,452,784              +25,574
           Jasper               65%                  $328,012                -2,187
           Kershaw              91%                 $2,143,644               +1,129
           Lancaster            97%                 $1,251,439               -2,613
           Laurens              98%                  $468,902                -2,742
           Lee                  98%                 $1,415,256              +17,220
           Lexington            75%                 $3,202,439               +5,502
           Marion               98%                 $1,062,592               +6,138
           Marlboro             96%                  $856,054               +13,613
           McCormick            99%                    $44,905                +284
           Newberry             95%                       N/A                   -12
           Oconee               97%                       N/A                -4,059
           Orangeburg           84%                 $2,794,085              +22,625
           Pickens              91%                  $239,581                   +39
           Richland             97%                       N/A                +1,939
           Saluda               85%                 $1,609,989                  +76
           Spartanburg          93%                 $1,050,880                 -587
           Sumter               91%                 $2,093,888              +17,600
           Union                98%                       N/A                  -453
           Williamsbur          99%                 $1,316,460              +10,893
           g
           York                 97%                       N/A                  -885
           TOTAL                93%                $46,847,646              279,918
          Source: PBS&J calculation




October 2004 – Updated March 2007         - 62 -                          Hazard Mitigation Plan
Vulnerability Assessment


HAIL
According to the historical data collected by the National Climatic Data Center since
1955, approximately 1.34 hail events occur annually per county. To compute the
estimated annualized losses that can be expected by county, the total amount of damage
recorded per county was divided by the average number of hail events experienced per
county. Because it cannot be predicted where hail events may occur, all buildings and
facilities are considered to be exposed to this hazard and could be impacted.

Based on this method of calculation, it is estimated that the annualized losses due to hail
occurrences in the state of South Carolina total $1,607,499. This number is expected to
increase as the state population grows over time. Table 6.23 shows the total exposure,
annual number of hail events by size, and estimated annualized losses.




October 2004 – Updated March 2007          - 63 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                       TABLE 6.23
                 AVERAGE ANNUAL NUMBER OF HAIL OCCURRENCES,
                        ESTIMATED ANNUALIZED LOSSES
                          TOTAL BUILDING ANNUAL NUMBER OF      ESTIMATED
              COUNTY
                            EXPOSURE      HAIL OCCURENCES    ANNUALIZED LOSS
            Abbeville        $1,841,771,000     1.02                        $0
            Aiken           $11,443,477,000     1.88                   $41,494
            Allendale          $661,276,000     0.37                        $0
            Anderson        $13,234,832,000     2.53                   $43,912
            Bamberg          $1,016,898,000     0.69                        $0
            Barnwell         $1,491,390,000     0.73                    $7,367
            Beaufort        $12,840,294,000     1.00                        $0
            Berkeley         $9,272,649,000     2.16                    $6,988
            Calhoun            $910,132,000     0.82                        $0
            Charleston      $30,386,215,000     1.92                        $0
            Cherokee         $3,311,819,000     1.41                $1,046,269
            Chester          $2,161,096,000     1.00                        $0
            Chesterfield     $2,710,159,000     0.78                        $0
            Clarendon        $2,037,354,000     1.59                     $863
            Colleton         $2,652,972,000     1.20                        $0
            Darlington       $4,340,796,000     0.96                  $201,150
            Dillon           $1,630,841,000     0.88                    $9,810
            Dorchester       $6,828,761,000     1.33                        $0
            Edgefield        $1,649,073,000     0.71                   $19,413
            Fairfield        $1,518,330,000     0.78                    $3,495
            Florence         $9,631,050,000     1.84               $19,602,445
            Georgetown       $4,790,846,000     0.88                    $7,764
            Greenville      $38,959,792,000     3.61                  $236,485
            Greenwood        $5,733,668,000     1.39                    $5,368
            Hampton          $1,176,123,000     0.63                        $0
            Horry           $18,932,685,000     2.22                   $32,840
            Jasper           $1,206,740,000     0.45                   $15,191
            Kershaw          $3,953,744,000     1.20                    $8,020
            Lancaster        $4,073,369,000     0.90                    $7,596
            Laurens          $4,456,206,000     1.57                   $47,189
            Lee                $973,865,000     0.61                   $90,175
            Lexington       $18,646,397,000     2.76                    $2,478
            Marion           $1,995,819,000     1.08                   $11,143
            Marlboro         $1,576,057,000     0.69                        $0
            McCormick          $657,053,000     0.43                  $220,202
            Newberry         $2,612,011,000     0.86                        $0
            Oconee           $5,106,287,000     2.06                  $276,922
            Orangeburg       $6,103,173,000     2.24                    $6,847
            Pickens          $7,674,457,000     1.63                  $567,789
            Richland        $49,612,793,000     2.39                   $12,602
            Saluda           $1,423,244,000     0.76                $3,321,030
            Spartanburg     $21,094,955,000     3.53                $3,531,541
            Sumter           $7,070,620,000     1.04                    $2,638
            Union            $1,995,620,000     1.14                   $61,848
            Williamsburg     $1,932,286,000     0.82                   $11,985
            York            $13,289,086,000     1.53                    $5,308
            TOTAL          $346,618,081,000                        $29,466,167
                Sources: HAZUS-MH, NCDC, PBS&J calculation



October 2004 – Updated March 2007          - 64 -                    Hazard Mitigation Plan
Vulnerability Assessment


WINTER STORMS
Unlike hazards such as flooding that typically impact a specific location, winter storms
most often affect large geographic areas including multiple counties. Using National
Climatic Data Center data including 14 years of records, total damages for each county
were calculated. In instances where multiple counties were affected and the value of
damage reflects the total for the affected area, an average share for each county was
calculated. To calculate annualized loss, the total damages were divided by the number
of recorded years, resulting in an estimated annualized loss of $13,280,465. Potential
losses for winter storms are difficult to capture because additional factors such as the
removal of snow from roadways, debris clean-up, indirect losses from power outages, are
not represented in this estimate. Based on this methodology of computing annualized
losses, it is expected that Oconee County is likely to suffer the greatest damage from
winter storms. Table 6.24 provides total exposure and estimated annualized loss.




October 2004 – Updated March 2007        - 65 -                     Hazard Mitigation Plan
Vulnerability Assessment


                                       TABLE 6.24
  BUILDING EXPOSURE, AVERAGE ANNUAL WINTER STORMS, ANNUALIZED LOSSES
                            TOTAL BUILDING       AVERAGE        ESTIMATED
                COUNTY
                              EXPOSURE        ANNUAL STORMS   ANNUALIZED LOSS
             Abbeville       $1,841,771,000           1.71           $890,031
             Aiken          $11,443,477,000           0.29                  $0
             Allendale         $661,276,000           0.21                  $0
             Anderson       $13,234,832,000           2.64           $913,425
             Bamberg         $1,016,898,000           0.29                  $0
             Barnwell        $1,491,390,000           0.29                  $0
             Beaufort       $12,840,294,000           0.07                  $0
             Berkeley        $9,272,649,000           0.29                  $0
             Calhoun           $910,132,000           0.36                  $0
             Charleston     $30,386,215,000           0.29                  $0
             Cherokee        $3,311,819,000           3.36           $932,196
             Chester         $2,161,096,000           2.21           $723,527
             Chesterfield    $2,710,159,000           0.86             $26,443
             Clarendon       $2,037,354,000           0.36                  $0
             Colleton        $2,652,972,000           0.29                  $0
             Darlington      $4,340,796,000           0.86           $337,908
             Dillon          $1,630,841,000           0.79           $337,908
             Dorchester      $6,828,761,000           0.29                  $0
             Edgefield       $1,649,073,000           0.29                  $0
             Fairfield       $1,518,330,000           0.71             $26,443
             Florence        $9,631,050,000           0.64           $256,728
             Georgetown      $4,790,846,000           0.21              $1,322
             Greenville     $38,959,792,000           3.79           $928,382
             Greenwood       $5,733,668,000           1.43           $888,943
             Hampton         $1,176,123,000           0.14                  $0
             Horry          $18,932,685,000           0.29           $256,133
             Jasper          $1,206,740,000           0.07                  $0
             Kershaw         $3,953,744,000           0.79             $26,443
             Lancaster       $4,073,369,000           0.86             $26,443
             Laurens         $4,456,206,000           1.79           $908,385
             Lee               $973,865,000           0.43                  $0
             Lexington      $18,646,397,000           0.43                  $0
             Marion          $1,995,819,000           0.50           $257,455
             Marlboro        $1,576,057,000           1.07           $368,602
             McCormick         $657,053,000           0.50             $26,443
             Newberry        $2,612,011,000           0.71             $26,443
             Oconee          $5,106,287,000           3.93          $1,151,604
             Orangeburg      $6,103,173,000           0.29                  $0
             Pickens         $7,674,457,000           3.57          $1,151,604
             Richland       $49,612,793,000           0.43                  $0
             Saluda          $1,423,244,000           0.43                  $0
             Spartanburg    $21,094,955,000           3.57           $928,382
             Sumter          $7,070,620,000           0.43                  $0
             Union           $1,995,620,000           1.79           $907,081
             Williamsburg    $1,932,286,000           0.43           $257,441
             York           $13,289,086,000           2.14           $724,753
             TOTAL         $346,618,081,000           1.02         $13,280,468
                           $346,397,419,000
            Sources: HAZUS-MH, PBS&J calculation



October 2004 – Updated March 2007            - 66 -                    Hazard Mitigation Plan
Vulnerability Assessment


LIGHTNING
Because it cannot be predicted where lightning may occur, all buildings and facilities are
considered to be exposed to this hazard and could be impacted. Using National Climatic
Data Center data including 14 years of records, total damages for each county were
calculated. To calculate annualized loss, the total damages were divided by the number
of recorded years, resulting in an estimated annualized loss of $10,855,774. Table 6.25
shows total property exposure, annual number of lightning events resulting in property
damage, estimated annualized loss by county based on the National Climatic Data Center
(NCDC) records from 1993 to 2006. A blank box indicates that estimated annual damage
is less than $1,000. However, the National Lightning Safety Institute claims that the
damage estimates reported by government agencies (such as NCDC) do not accurately
represent actual losses because losses are often underestimated or underreported.
Realistic lightning costs and losses may reach $4-5 billion per year including losses
associated with forest fires, insurance claims and damages to warehouses, aircraft,
electrical infrastructure and nuclear power plants.




October 2004 – Updated March 2007         - 67 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                        TABLE 6.25
       AVERAGE ANNUAL NUMBER OF LIGHTNING OCCURRENCES, ESTIMATED
                          ANNUALIZED LOSSES
                                               AVERAGE ANNUAL
                           TOTAL BUILDING                         ESTIMATED
            COUNTY                               NUMBER OF
                             EXPOSURE                           ANNUALIZED LOSS
                                                OCCURRENCES
          Abbeville             $1,841,771,000         0.57              $66,793
          Aiken                $11,443,477,000         0.71              $18,996
          Allendale               $661,276,000         0.07           $7,220,838
          Anderson             $13,234,832,000           1             $556,145
          Bamberg               $1,016,898,000         0.14              $44,920
          Barnwell              $1,491,390,000         0.36              $21,353
          Beaufort             $12,840,294,000         2.29              $91,628
          Berkeley              $9,272,649,000          0.5              $38,131
          Calhoun                 $910,132,000         0.07                   $0
          Charleston           $30,386,215,000         0.79              $64,590
          Cherokee              $3,311,819,000         0.79            $133,439
          Chester               $2,161,096,000           0                    $0
          Chesterfield          $2,710,159,000         0.21              $19,849
          Clarendon             $2,037,354,000         0.43            $247,460
          Colleton              $2,652,972,000         0.14                   $0
          Darlington            $4,340,796,000         0.36              $29,888
          Dillon                $1,630,841,000         0.14            $352,288
          Dorchester            $6,828,761,000         0.71               $5,152
          Edgefield             $1,649,073,000           0                    $0
          Fairfield             $1,518,330,000           0                    $0
          Florence              $9,631,050,000         1.07              $31,444
          Georgetown            $4,790,846,000           1               $21,218
          Greenville           $38,959,792,000         1.14            $128,400
          Greenwood             $5,733,668,000         0.71              $14,207
          Hampton               $1,176,123,000         0.14              $68,515
          Horry                $18,932,685,000         1.64              $21,972
          Jasper                $1,206,740,000           0                    $0
          Kershaw               $3,953,744,000         0.14              $42,020
          Lancaster             $4,073,369,000         0.57            $131,165
          Laurens               $4,456,206,000          0.5            $175,527
          Lee                     $973,865,000         0.07              $72,104
          Lexington            $18,646,397,000          0.5            $218,827
          Marion                $1,995,819,000         0.43              $74,227
          Marlboro              $1,576,057,000         0.36              $27,805
          McCormick               $657,053,000         0.14              $52,297
          Newberry              $2,612,011,000         0.07              $89,069
          Oconee                $5,106,287,000          0.5              $26,817
          Orangeburg            $6,103,173,000         0.57            $111,206
          Pickens               $7,674,457,000         0.43               $9,857
          Richland             $49,612,793,000         0.71            $310,976
          Saluda                $1,423,244,000           0                    $0
          Spartanburg          $21,094,955,000         2.07              $88,060
          Sumter                $7,070,620,000         0.07            $292,546
          Union                 $1,995,620,000          0.5              $15,739
          Williamsburg          $1,932,286,000         0.21               $2,284
          York                 $13,289,086,000         1.43              $46,422
          TOTAL               $346,618,081,000          0.5          $10,855,774
                 Sources HAZUS-MH, PBS&J calculation


October 2004 – Updated March 2007           - 68 -                    Hazard Mitigation Plan
Vulnerability Assessment


COASTAL EROSION
In 2000, the Heinz Center released a study entitled ―Evaluation of Erosion Hazard‖ which
detailed research on erosion rates and trends for coastal areas, including the identification
of 60-year erosion areas. This study included detailed information for Georgetown
County in South Carolina. According to this study, approximately 39 percent of all
properties in Georgetown County are located within the 60-year erosion area.

To assess vulnerability of the state’s coastal counties to coastal erosion, long-term coastal
erosion rates were obtained from the state’s beach monitoring program maintained by
DHEC’s Office of Ocean and Coastal Resource Management (OCRM). Erosion survey
points from the program were overlaid with census block data using GIS, and a 60-year
erosion area was established for each vulnerable census block by multiplying the annual
erosion rate at each survey point by 60. To calculate exposure by county, it was assumed
that the percentage of properties located in the 60-year erosion area in Georgetown
County according to the Heinz Center study (39 percent) is consistent among all coastal
counties. To estimate annualized loss by county, the total value of exposed buildings
located in the 60-year erosion area was divided by 60 years. Table 6.26 and Table 6.27
show building exposure, long-term erosion rate and estimated annualized loss for coastal
counties due to coastal erosion in South Carolina.

In the state, it is estimated that 7,172 people reside within the 60-year erosion area.
Beaufort County experiences the highest average erosion rate, while Colleton County has
zero exposure and erosion rate, and is therefore not considered to be vulnerable to the
coastal erosion hazard.

                                           TABLE 6.26
              BUILDING EXPOSURE, LONG-TERM COASTAL EROSION RATE
                                                         ANNUAL EROSION
                   TOTAL VALUE OF EXPOSED BUILDINGS
  COUNTY                                                    RATE (FEET)
                RESIDENTIAL      COMMERCIAL    OTHER         TOTAL         MAXIMUM     MINIMUM
 Beaufort        $282,565,000       $670,000   $252,000    $566,722,000     10.43        0.12
 Charleston      $379,629,000       $400,000   $738,000    $760,796,000      10.3        0.47
 Colleton                  $0              $0         $0             $0       0            0
 Georgetown      $107,741,000       $541,000          $0   $216,564,000     9.267        0.57
 Horry           $609,071,000     $23,306,000 $5,595,000 $1,270,349,000      3.23         0.4
 TOTAL         $1,379,006,000     $24,917,000 $6,585,000 $2,814,431,000
Source: PBS&J calculation

                                           TABLE 6.27
         COASTAL EROSION ANNUALIZED LOSS FOR COASTAL COUNTIES
                              ESTIMATED ANNUALIZED LOSS
      COUNTY
                            RESIDENTIAL        COMMERCIAL         OTHER              TOTAL
 Beaufort                     $3,088,891          $10,070          $768             $3,099,729
 Charleston                   $1,192,146           $1,352           $0              $1,193,498
 Colleton                         $0                 $0             $0                  $0
 Georgetown                   $1,199,600          $13,034           $0              $1,212,634
 Horry                         $932,475           $36,195         $6,563             $975,234
 TOTAL                        $6,413,112          $60,652         $7,332            $6,481,096
Source: PBS&J calculation


October 2004 – Updated March 2007             - 69 -                        Hazard Mitigation Plan
Vulnerability Assessment



In order to determine the vulnerability of state facilities to the coastal erosion hazard, a
GIS analysis was conducted. The analysis identified all state facilities (greater than 3,000
sq ft) located within one (1) mile of the Atlantic Ocean. As a result of this analysis, a
total of 288 facilities were identified. The value of those facilities was determined to be
$981,413,000. As better methods for determining coastal erosion vulnerability become
available, the assessment of state facilities at risk to the coastal erosion hazard will be
modified.
Some of the types of buildings identified in this analysis are maintenance sheds,
workshops, education facilities (including universities), truck sheds, state park facilities,
corrections facilities, state hospitals, marine labs, and state docks and piers.


DAM FAILURE

In order to assess the vulnerability of the state due to dam failure, the location of high
hazard potential dams were considered. As discussed in the Hazard Analysis section of
this document, there are 182 dams that are considered to be at high risk for failure in the
state of South Carolina. In order to estimate the total inundation area should a dam fail,
the normal water storage of each dam was estimated and converted into square miles. It
is assumed that a given geographical area will be inundated with five feet of water if a
dam breaks. This method reflects the inundation area based on the water storage of the
dam. However, variables such as topography, water flow speed, depth and width of the
stream are not readily available.

Table 6.28 shows total inventory per county, including number and value of buildings
and total land area, as well as exposure per county for the estimated inundation area due
to high hazard dam failure. Oconee, Lexington, Pickens and Clarendon Counties are the
jurisdictions at highest risk for dam failure. In fact, the aggregate inundation area for the
twelve high hazard dams in Oconee County exceeds the total land area in the county.
Fourteen counties have no estimated inundation area, thus they have minimal potential
exposure to high hazard dam failure.




October 2004 – Updated March 2007           - 70 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                        TABLE 6.28
 BUILDING INVENTORY, EXPOSURE IN ESTIMATED DAM FAILURE INUNDATION AREA
                     TOTAL INVENTORY PER COUNTY            EXPOSURE IN ESTIMATED INUNDATION AREA
                                                                                     POTENTIAL
  COUNTY     NUMBER OF    TOTAL BUILDING    TOTAL AREA     HIGH RISK    HIGH RISK
                                                                                    EXPOSURE IN
             BUILDINGS        VALUE           (SQ MI)     AREA (SQ MI)  AREA (%)
                                                                                   HIGH RISK AREA
Abbeville         10,753    $1,841,771,000       511.05         0.00       0.0%              $0
Aiken             59,332 $11,443,477,000       1,080.46         1.50       0.1%     $15,848,000
Allendale          3,998      $661,276,000       412.58         0.53       0.1%       $853,000
Anderson          68,523 $13,234,832,000         757.45         0.02       0.0%       $436,000
Bamberg            6,303    $1,016,898,000       395.47       149.96      37.9%    $385,592,000
Barnwell           9,553    $1,491,390,000       557.25         0.00       0.0%              $0
Beaufort          55,030 $12,840,294,000         922.88         0.00       0.0%              $0
Berkeley          51,100    $9,272,649,000     1,228.07       346.33      28.2% $2,614,990,000
Calhoun            6,718      $910,132,000       392.34         0.04       0.0%         $87,000
Charleston       117,020 $30,386,215,000       1,358.11         0.00       0.0%              $0
Cherokee          20,497    $3,311,819,000       397.28         2.59       0.7%     $21,588,000
Chester           13,413    $2,161,096,000       586.16        16.92       2.9%     $62,374,000
Chesterfield      17,463    $2,710,159,000       805.78         0.09       0.0%       $301,000
Clarendon         14,180    $2,037,354,000       695.66       383.76      55.2% $1,123,904,000
Colleton          17,114    $2,652,972,000     1,133.21         0.00       0.0%              $0
Darlington        26,772    $4,340,796,000       566.78         9.21       1.6%     $70,560,000
Dillon            11,370    $1,630,841,000       406.54         0.00       0.0%              $0
Dorchester        34,948    $6,828,761,000       576.69         0.06       0.0%       $720,000
Edgefield          8,773    $1,649,073,000       506.54         0.19       0.0%       $630,000
Fairfield          9,638    $1,518,330,000       709.93       134.80      19.0%    $288,296,000
Florence          47,151    $9,631,050,000       803.74         0.01       0.0%       $131,000
Georgetown        26,405    $4,790,846,000     1,035.00         0.00       0.0%              $0
Greenville       145,607 $38,959,792,000         794.96        17.39       2.2%    $852,117,000
Greenwood         25,099    $5,733,668,000       462.94         0.00       0.0%         $12,000
Hampton            8,018    $1,176,123,000       562.63         0.00       0.0%              $0
Horry             88,934 $18,932,685,000       1,254.96         0.00       0.0%              $0
Jasper             7,494    $1,206,740,000       699.79         0.00       0.0%              $0
Kershaw           22,546    $3,953,744,000       740.25        82.02      11.1%    $438,075,000
Lancaster         23,392    $4,073,369,000       555.29         0.97       0.2%      $7,090,000
Laurens           28,537    $4,456,206,000       723.98         0.28       0.0%      $1,728,000
Lee                7,106      $973,865,000        411.3         0.00       0.0%              $0
Lexington         89,825 $18,646,397,000         757.88       503.98      66.5% $12,399,591,000
Marion            13,862    $1,995,819,000       494.09         0.00       0.0%              $0
Marlboro          10,491    $1,576,057,000       485.28         0.31       0.1%      $1,003,000
McCormick          4,109      $657,053,000       393.85         0.00       0.0%              $0
Newberry          15,751    $2,612,011,000       647.28       243.59      37.6%    $982,991,000
Oconee            30,569    $5,106,287,000       673.58      1948.59     100.0% $5,106,287,000
Orangeburg        36,664    $6,103,173,000     1,128.09         0.39       0.0%      $2,117,000
Pickens           41,461    $7,674,457,000       511.85       303.36      59.3% $4,548,417,000
Richland         123,783 $49,612,793,000         771.72         3.61       0.5%    $232,352,000
Saluda             8,387    $1,423,244,000       461.78         0.04       0.0%       $112,000
Spartanburg       99,274 $21,094,955,000         819.14        13.41       1.6%    $345,344,000
Sumter            38,619    $7,070,620,000       682.03         0.00       0.0%              $0
Union             12,317    $1,995,620,000       515.92         0.67       0.1%      $2,584,000
Williamsburg      14,389    $1,932,286,000       936.92         0.07       0.0%       $141,000
York              62,520 $13,289,086,000         695.72        77.76      11.2% $1,485,287,000
TOTAL          1,594,808 $346,618,081,000 32,020.20          4242.45      13.2% $30,991,558,000
Sources: HAZUS-MH, U.S. Census, PBS&J calculation



October 2004 – Updated March 2007            - 71 -                         Hazard Mitigation Plan
Vulnerability Assessment

A GIS analysis was conducted in order to determine the vulnerability to dam failure of
state-owned facilities. Because dam failure inundation data is not available for the
majority of high hazard dams in the State, the analysis consisted of identifying those
state-owned facilities (greater than 3,000 sq ft) located within one miles of a high hazard
dam. This analysis resulted in the identification on 108 facilities with a value of
$147,403,000. Future updates of this plan may try to improve upon this analysis as better
data and evaluation procedures are identified.

EARTHQUAKE
In order to assess vulnerability of the state to earthquake impact, HAZUS-MH MR2 was
used (utilizing default data) to perform an analysis to determine the annualized losses that
can be expected to occur statewide as a result of an earthquake. According to the results
of this analysis, total annualized loss (buildings and contents) for the entire state due to
earthquake is estimated at $53,667,000. Based on annualized loss estimates as well as
seismic fault locations, it is expected that Charleston County will suffer higher losses in
an earthquake event than any other jurisdiction in the state. Table 6.29 provides total
exposure and annualized loss estimates for residential and non-residential buildings by
county.

Figure 6.14 and Figure 6.15 show peak ground acceleration for a 100 and 500-year
event in South Carolina. During a 100-year earthquake event, ground shaking
acceleration is expected to be uniform across the state. A 500-year earthquake is
expected to impact the eastern portion of the state more than other areas, with areas in
and around Charleston County experiencing a higher ground acceleration than other
areas. Figure 6.16 and Figure 6.17 show general population density and state-owned
facility locations in relation to earthquake hazard areas for South Carolina. State-owned
facilities were also analyzed using HAZUS-MH to determine exposure and estimated
damages for particular earthquake event scenarios. Table 6.30 provides earthquake
exposure and damage estimates for state-owned facilities for a 100 and 500-year event.




October 2004 – Updated March 2007          - 72 -                       Hazard Mitigation Plan
Vulnerability Assessment


                                     TABLE 6.29
      EXPOSURE, ANNUALIZED EARTHQUAKE LOSS ESTIMATES FOR BUILDINGS
                                    TOTAL EXPOSURE       ANNUALIZED LOSS
                 Abbeville              $1,841,771,000            $137,000
                 Aiken                 $11,443,477,000          $1,108,000
                 Allendale                $661,276,000             $88,000
                 Anderson              $13,234,832,000            $912,000
                 Bamberg                $1,016,898,000            $187,000
                 Barnwell               $1,491,390,000            $205,000
                 Beaufort              $12,840,294,000            $981,000
                 Berkeley               $9,272,649,000          $4,685,000
                 Calhoun                  $910,132,000            $177,000
                 Charleston            $30,386,215,000        $11,327,000
                 Cherokee               $3,311,819,000            $221,000
                 Chester                $2,161,096,000            $173,000
                 Chesterfield           $2,710,159,000            $304,000
                 Clarendon              $2,037,354,000            $689,000
                 Colleton               $2,652,972,000            $705,000
                 Darlington             $4,340,796,000            $666,000
                 Dillon                 $1,630,841,000             $45,000
                 Dorchester             $6,828,761,000          $3,231,000
                 Edgefield              $1,649,073,000            $152,000
                 Fairfield              $1,518,330,000            $177,000
                 Florence               $9,631,050,000          $2,146,000
                 Georgetown             $4,790,846,000            $692,000
                 Greenville            $38,959,792,000          $2,935,000
                 Greenwood              $5,733,668,000            $473,000
                 Hampton                $1,176,123,000            $194,000
                 Horry                 $18,932,685,000            $514,000
                 Jasper                 $1,206,740,000            $117,000
                 Kershaw                $3,953,744,000            $533,000
                 Lancaster              $4,073,369,000            $372,000
                 Laurens                $4,456,206,000            $385,000
                 Lee                      $973,865,000            $168,000
                 Lexington             $18,646,397,000          $2,468,000
                 McCormick              $1,995,819,000             $53,000
                 Marion                 $1,576,057,000            $100,000
                 Marlboro                 $657,053,000             $45,000
                 Newberry               $2,612,011,000            $264,000
                 Oconee                 $5,106,287,000            $341,000
                 Orangeburg             $6,103,173,000          $1,420,000
                 Pickens                $7,674,457,000            $553,000
                 Richland              $49,612,793,000          $8,709,000
                 Saluda                 $1,423,244,000            $145,000
                 Spartanburg           $21,094,955,000          $1,490,000
                 Sumter                 $7,070,620,000          $1,520,000
                 Union                  $1,995,620,000            $163,000
                 Williamsburg           $1,932,286,000            $753,000
                 York                  $13,289,086,000            $923,000
                 TOTAL                $346,618,081,000      $53,646,000.00
                 Source: HAZUS-MH MR2




October 2004 – Updated March 2007         - 73 -                       Hazard Mitigation Plan
Vulnerability Assessment


                                      TABLE 6.30
    EXPOSURE, DAMAGE ESTIMATES FOR 100- AND 500-YEAR EARTHQUAKE EVENT
                  SCENARIOS FOR STATE-OWNED FACILITIES
                    EXPOSURE OF STATE-OWNED FACILITIES               ESTIMATED DAMAGE
  COUNTY
              NUMBER    BUILDING     CONTENTS       TOTAL         100-YEAR     500-YEAR
Abbeville         6        $3,058,000       $31,000    $3,089,000     $975         $10,501
Aiken            40       $81,455,000      $815,000   $82,270,000   $12,537       $206,152
Allendale        22       $45,619,000      $445,000   $46,064,000   $24,003       $411,585
Anderson         46       $63,441,000      $633,000   $64,074,000   $11,925       $134,131
Bamberg          23       $21,509,000      $215,000   $21,724,000   $17,702       $181,633
Barnwell         22        $6,244,000       $61,000    $6,305,000    $1,967        $52,115
Beaufort         48       $35,696,000      $350,000   $36,046,000   $24,422       $554,976
Berkeley         32       $42,926,000      $428,000   $43,354,000   $33,708     $4,122,266
Calhoun           6        $2,357,000       $22,000    $2,379,000    $1,205        $29,937
Charleston      291    $1,306,053,000 $10,436,000 $1,316,489,000 $1,090,945   $135,778,587
Cherokee         15        $5,123,000       $48,000    $5,171,000    $1,462        $43,887
Chester          18        $9,036,000       $89,000    $9,125,000     $895         $23,673
Chesterfield     27       $15,393,000      $154,000   $15,547,000    $5,217       $106,688
Clarendon        29       $66,842,000    $1,327,000   $68,169,000   $26,061       $948,060
Colleton         65       $91,372,000    $1,218,000   $92,590,000   $27,342     $1,963,779
Darlington       10        $9,504,000       $97,000    $9,601,000    $6,264        $97,369
Dillon            5        $2,529,000       $25,000    $2,554,000     $544         $16,351
Dorchester       25       $47,157,000      $472,000   $47,629,000   $55,949     $6,377,610
Edgefield        26       $25,074,000      $248,000   $25,322,000    $2,791        $66,214
Fairfield         5        $2,038,000       $20,000    $2,058,000     $396         $10,040
Florence        115      $175,169,000    $1,754,000 $176,923,000    $31,130     $1,120,878
Georgetown       20       $16,561,000      $167,000   $16,728,000    $2,863       $173,825
Greenville       87      $193,916,000    $1,941,000 $195,857,000    $31,601       $372,246
Greenwood        66      $127,953,000    $1,276,000 $129,229,000    $18,173       $255,297
Hampton          14        $6,375,000       $64,000    $6,439,000    $1,718        $45,482
Horry            85      $194,747,000    $1,947,000 $196,694,000    $25,417     $1,275,796
Jasper           21       $59,461,000      $595,000   $60,056,000   $17,612       $647,622
Kershaw          35       $54,636,000      $545,000   $55,181,000    $9,642       $186,231
Lancaster        18       $20,671,000      $208,000   $20,879,000    $1,931        $47,065
Laurens          46       $51,862,000      $521,000   $52,383,000   $19,672       $227,297
Lee              22       $64,653,000      $646,000   $65,299,000   $14,058       $511,604
Lexington        57       $60,655,000      $604,000   $61,259,000   $30,535       $584,205
Marion           57       $62,902,000      $626,000   $63,528,000    $6,595       $134,440
Marlboro          8        $5,965,000       $60,000    $6,025,000    $1,356        $46,960
McCormick        16       $40,057,000      $400,000   $40,457,000   $16,638       $186,482
Newberry         15        $8,973,000       $91,000    $9,064,000    $1,352        $27,808
Oconee           21        $9,082,000       $89,000    $9,171,000    $1,799        $20,861
Orangeburg      104      $165,329,000    $1,658,000 $166,987,000    $69,113     $1,717,310
Pickens         226      $537,606,000    $5,380,000 $542,986,000    $48,750       $568,621
Richland        609    $1,763,535,000 $17,427,000 $1,780,962,000   $747,188    $15,330,642
Saluda            7        $2,294,000       $23,000    $2,317,000     $728         $12,030
Spartanburg     106      $195,491,000    $1,951,000 $197,442,000    $43,553       $472,438
Sumter           62       $69,578,000      $693,000   $70,271,000   $33,893       $843,790
Union            18        $8,594,000       $86,000    $8,680,000    $2,183        $26,716
Williamsburg     22       $18,628,000      $185,000   $18,813,000    $9,994       $404,715
York             78      $232,312,000    $2,317,000 $234,629,000    $34,857       $524,637
TOTAL          2,696   $6,029,431,000 $58,388,000 $6,087,819,000 $2,568,660   $176,900,551
Sources: HAZUS-MH, South Carolina Emergency Management Division




October 2004 – Updated March 2007         - 74 -                      Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.14
  GROUND SHAKING ACCELERATION FOR EVENT WITH 100-YEAR RETURN PERIOD




                                    FIGURE 6.15
  GROUND SHAKING ACCELERATION FOR EVENT WITH 500-YEAR RETURN PERIOD




October 2004 – Updated March 2007      - 75 -         Hazard Mitigation Plan
Vulnerability Assessment


                                    FIGURE 6.16
   GENERAL POPULATION DENSITY IN RELATION TO THE EARTHQUAKE HAZARD




                                    FIGURE 6.17
       STATE-OWNED FACILITIES IN RELATION TO THE EARTHQUAKE HAZARD




October 2004 – Updated March 2007      - 76 -           Hazard Mitigation Plan
Vulnerability Assessment


HAZARDOUS MATERIAL (HAZMAT) INCIDENT: FIXED AND MOBILE
Table 6.31 provides an overview of the types HAZMAT facilities found in each county
and the number of HAZMAT spills reported in each county. Based upon these numbers,
the county population and total county exposure at risk in these counties, Charleston
County, followed by Greenville and Spartanburg Counties are the most vulnerable to
HAZMAT incidents. This directly coincides with the findings of the State of South
Carolina Hazards Assessment (2005) discussed in Section 5.

                                              TABLE 6.31
                            HAZMAT FACILITIES AND SPILLS BY COUNTY




                                                 SOLID WASTE
               POPULATION




                                                 SUPERFUND
                                                 MUNICIPAL




                                                                                             AND SPILLS
                                                 FACILITIES




                                                                                             FACILITIES
                                                 LANDFILLS
                                   EXPOSURE




                                                 STATIONS
                                                 NUCLEAR




                                                                              HAZMAT
     COUNTY




                                                 CERCLA




                                                 POWER
               TOTAL




                                   TOTAL




                                                                                             TOTAL
                                                                              SPILLS
                                                 SITES




                                                 SITES




                                                                                       BRS
                                                 TRI
Abbeville         26,133        $1,841,771,000    10       11   1               11      1        34
Aiken            150,181       $11,443,477,000    28       31   1       1      113     14       188
Allendale         10,917          $661,276,000     4        6           1       23      1        35
Anderson         175,514       $13,234,832,000    37       36   3              109     19       204
Bamberg           15,880        $1,016,898,000     4        6   1               17      1        29
Barnwell          23,345        $1,491,390,000    10       10       1   1       29      4        55
Beaufort         137,849       $12,840,294,000     6       17           4      174      4       205
Berkeley         151,673        $9,272,649,000    23       15                  257     12       307
Calhoun           15,100          $910,132,000     4        6   1               59      1        71
Charleston       330,368       $30,386,215,000    39       63           3     1556     33      1694
Cherokee          53,844        $3,311,819,000    23       13           1       95      9       141
Chester           33,228        $2,161,096,000    21       10           1       52      8        92
Chesterfield      43,435        $2,710,159,000    22       11                   32     10        75
Clarendon         33,363        $2,037,354,000     3        1                   17      1        22
Colleton          39,605        $2,652,972,000     8        9   2               58      1        78
Darlington        67,346        $4,340,796,000    13       12       1           80      3       109
Dillon            30,974        $1,630,841,000     3        1   1               30      0        35
Dorchester       112,858        $6,828,761,000    20       13   2              104      3       142
Edgefield         25,528        $1,649,073,000     2        3                   25      5        35
Fairfield         24,047        $1,518,330,000     7        2       1           44      5        59
Florence         131,097        $9,631,050,000    23        9           1      106      6       145
Georgetown        60,983        $4,790,846,000     9        7                  218      3       237
Greenville       407,383       $38,959,792,000   139       75   3       4      318     62       601
Greenwood         67,979        $5,733,668,000    20        7                   72     10       109
Hampton           21,329        $1,176,123,000     7        8                   31      2        48
Horry            226,992       $18,932,685,000    12       19                  208      5       244
Jasper            21,398        $1,206,740,000     0        4                   25      0        29
Kershaw           56,486        $3,953,744,000    12        7                   95      6       120
Lancaster         63,113        $4,073,369,000    16        7                   25      2        50
Laurens           70,293        $4,456,206,000    21       12                   65      6       104
Lee               20,638          $973,865,000     3        3                    8      1        15



October 2004 – Updated March 2007                 - 77 -                    Hazard Mitigation Plan
Vulnerability Assessment




                                                    SOLID WASTE
                    POPULATION




                                                    SUPERFUND
                                                    MUNICIPAL




                                                                                               AND SPILLS
                                                    FACILITIES




                                                                                               FACILITIES
                                                    LANDFILLS
                                      EXPOSURE




                                                    STATIONS
                                                    NUCLEAR




                                                                                HAZMAT
     COUNTY




                                                    CERCLA




                                                    POWER
                    TOTAL




                                      TOTAL




                                                                                               TOTAL
                                                                                SPILLS
                                                    SITES




                                                    SITES




                                                                                         BRS
                                                    TRI
Lexington            235,272      $18,646,397,000    37    34   1                219      20       311
Marion                34,904       $1,995,819,000     8     7             3       13       3        34
Marlboro              28,021       $1,576,057,000    12     7                     13       2        34
McCormick             10,108         $657,053,000     0     2                     33       1        36
Newberry              37,250       $2,612,011,000    11     2                     22       5        40
Oconee                69,577       $5,106,287,000    23     6        1           104      10       144
Orangeburg            92,167       $6,103,173,000    26    19                    313       8       366
Pickens              113,575       $7,674,457,000    18    27             1       63      10       119
Richland             340,078      $49,612,793,000    40    41   1         3      183      30       298
Saluda                18,895       $1,423,244,000     1     2                      8       0        11
Spartanburg          266,809      $21,094,955,000    95    63   2         2      343      43       548
Sumter               105,517       $7,070,620,000    25    17   1                113      21       177
Union                 28,539       $1,995,620,000     9     4                     23       2        38
Williamsburg          35,395       $1,932,286,000     8     8                     17       3        36
York                 190,097      $13,289,086,000    41    25        1    2      279      23       371
TOTALS             4,255,083     $346,618,081,000   903   698   20   5   28     5802     419

TRI Facilities: source: Environmental Protection Agency (EPA) date updated: 3/20/2002
CERCLA Sites: source: South Carolina Department of Health and Environmental Control (SCDHEC) date
updated: 3/28/2001
Municipal Solid Waste Landfills: source: South Carolina Department of Health and Environmental
Control (SCDHEC) date updated: 3/28/2001
Nuclear Power Stations: source: South Carolina Department of Health and Environmental Control
(SCDHEC) date updated: unknown
SUPERFUND Sites: source: Environmental Protection Agency (EPA) date updated: 1/04/2002
HAZMAT Spills: source: National Response Center date updated: 1982-2000
Biennial Reporting System (BRS): source: Environmental Protection Agency (EPA) date updated:
4/24/1999

PUBLIC HEALTH EMERGENCIES
The South Carolina Department of Health and Environmental Control (DHEC) conducted
a Hazard Vulnerability Analysis in 2005. This assessment, which focuses on the public
health impact of the hazard, profiled and ranked the fifteen hazards listed below. The
hazards are listed in order of priority rank based on the potential impact on human health
as determined by the Public Health Hazard Vulnerability Assessment Working Group.
    1.        Biological Disease Outbreak – Pandemic Influenza
    2.        Natural Disaster – Major Earthquake
    3.        Nuclear Detonation – 10-Kiloton Improvised Nuclear Device
    4.        Natural Disaster – Major Hurricane
    5.        Biological Attack – Pneumonic Plague
    6.        Chemical Attack – Blister Agent
    7.        Chemical Attack – Nerve Agent


October 2004 – Updated March 2007                    - 78 -                   Hazard Mitigation Plan
Vulnerability Assessment

   8. Chemical Attack – Toxic Industrial Chemicals
   9. Chemical Attack – Chlorine Tank Explosion
   10. Biological Attack – Aerosol Anthrax
   11. Radiological Attack – Radiological Dispersal Devices
   12. Explosive Attack – Bombing Using Improvised Explosive Devices
   13. Biological Attack – Food Contamination
   14. Biological Attack – Foreign Animal Disease
   15. Cyber Attack

POPULATION TRENDS AND GROWTH IN HAZARD PRONE AREAS
Statewide vulnerability and exposure changes constantly in South Carolina as new people
move to the state and new houses and businesses are built on a daily basis. Table 6.32
provides the following information, by county:
              Census population data for 2005, 2000 and 1990,
              Percentage of population change from 2000 to 2005,
              Hazard score based on annualized loss estimates taken from Table 6.35,
              Place vulnerability scores taken from the 2005 State of South Carolina
               Hazards Assessment (see Appendix B)
              Total exposure taken from HAZUS-MH MR2
The table provides an overview of growth in the state and how that growth relates to
hazard vulnerability and exposure located in the counties. According to the data, highest
growth is occurring in counties that are considered to be at high risk to hazards.
Dorchester, York, Horry and Beaufort Counties each experienced growth rates greater
than 10% from 2000 to 2005. Dorchester, Horry and Beaufort are highly vulnerable
coastal counties. The HAZUS-MH MR2 exposure data shows the amount of property at
risk in those counties.
As population increases, more residential and commercial buildings being built in these
areas, thereby increasing the exposure of these buildings and populations to hazards.
This information allows state officials to determine where the highest rate of growth is
occurring in the state and plan accordingly.
This table can also be used to make other observations on growth, risk and exposure.
For example, Horry County had the third highest growth rate from 2000 to 2005 and also
posted a high hazard score based on annualized losses (highest score in the state) and
place vulnerability score (fourth highest score in the state). This shows that high growth
is occurring in areas of high vulnerability and areas of increasing exposure values. This
is an important consideration to keep in mind as the Mitigation Strategy is reviewed and
monitored over time. It will also be important to reassess statewide vulnerability on a
regular basis as growth in these high hazard areas will increase the overall types, numbers
and value of properties at risk.




October 2004 – Updated March 2007          - 79 -                      Hazard Mitigation Plan
              Vulnerability Assessment


                                                       TABLE 6.32
                              POPULATION TRENDS AND VULNERABILITY BY COUNTY
                                                                            Hazard Score           Place
                                                                              Based on         Vulnerability
                                                               % Change      Annualized         Scores from      Total Exposure
                         2005         2000          1990       from 2000-       Loss           2005 Hazards       (HAZUS MH
        County         Population   Population    Population      2005*       Estimates         Assessment           MR-2)
Dorchester County         112,858       96,413        83,060        17.1%             212              261.33     $6,828,761,000
York County               190,097      164,614       131,497        15.5%             229              200.13    $13,289,086,000
Horry County              226,992      196,629       144,053        15.4%             393              939.32    $18,932,685,000
Beaufort County           137,849      120,937        86,425        14.0%             288              242.34    $12,840,294,000
Georgetown County          60,983       55,797        46,302         9.3%             310              246.85     $4,790,846,000
Lexington County          235,272      216,014       167,611         8.9%             325              969.13    $18,646,397,000
Greenville County         407,383      379,616       320,167         7.3%             359              524.95    $38,959,792,000
Kershaw County             56,486       52,647        43,599         7.3%             303              171.16     $3,953,744,000
Charleston County         330,368      309,969       295,039         6.6%             343             1329.89    $30,386,215,000
Berkeley County           151,673      142,651       128,776         6.3%             300             1017.16     $9,272,649,000
Richland County           340,078      320,677       285,720         6.0%             300              571.04    $49,612,793,000
Anderson County           175,514      165,740       145,196         5.9%             332              212.74    $13,234,832,000
Aiken County              150,181      142,552       120,940         5.4%             253              566.95    $11,443,477,000
Oconee County              69,577       66,215        57,494         5.1%             260                95.90    $5,106,287,000
Spartanburg County        266,809      253,791       226,800         5.1%             328              399.43    $21,094,955,000
Florence County           131,097      125,761       114,344         4.2%             336              651.47     $9,631,050,000
Edgefield County           25,528       24,595        18,375         3.9%             124                37.79    $1,649,073,000
Jasper County              21,398       20,678        15,487         3.6%             148              194.71     $1,206,740,000
Colleton County            39,605       38,264        34,377         3.5%             208              389.18     $2,652,972,000
Newberry County            37,250       36,108        33,172         3.5%             193                60.95    $2,612,011,000
Lancaster County           63,113       61,351        54,516         2.9%             252                85.86    $4,073,369,000
Clarendon County           33,363       32,502        28,450         2.6%             277              296.09     $2,037,354,000
Greenwood County           67,979       66,271        59,567         2.6%             214              141.17     $5,733,668,000
Lee County                 20,638       20,119        18,437         2.6%             187              108.41       $973,865,000
Cherokee County            53,844       52,537        44,506         2.5%             273              116.14     $3,311,819,000
Fairfield County           24,047       23,454        18,375         2.5%             159                90.57    $1,518,330,000
Pickens County            113,575      110,757        93,864         2.5%             237              155.75     $7,674,457,000
Chesterfield County        43,435       42,768        38,577         1.6%             259              221.67     $2,710,159,000
McCormick County           10,108        9,958         8,868         1.5%             134                62.72      $657,053,000
Laurens County             70,293       69,567        58,092         1.1%             298              129.92     $4,456,206,000
Dillon County              30,974       30,722        29,114         0.8%             291              109.62     $1,630,841,000
Sumter County             105,517      104,646       102,637         0.8%             334              399.46     $7,070,620,000
Orangeburg County          92,167       91,582        84,803         0.7%             299              723.43     $6,103,173,000
Abbeville County           26,133       26,167        23,862        -0.1%             200                64.99    $1,841,771,000
Darlington County          67,346       67,394        61,851        -0.1%             312              266.34     $4,340,796,000
Hampton County             21,329       21,386        18,191        -0.2%             151              117.04     $1,176,123,000
Barnwell County            23,345       23,478        20,293        -0.6%             203                69.15    $1,491,390,000
Calhoun County             15,100       15,185        12,753        -0.6%             125                47.53      $910,132,000
Saluda County              18,895       19,181        16,357        -1.5%             170                39.53    $1,423,244,000
Marion County              34,904       35,466        33,899        -1.6%             248                40.90    $1,995,819,000
Chester County             33,228       34,068        32,170        -2.5%             177                72.34    $2,161,096,000
Allendale County           10,917       11,211        11,722        -2.6%             124                48.13      $661,276,000


              October 2004 – Updated March 2007            - 80 -                           Hazard Mitigation Plan
              Vulnerability Assessment

                                                                             Hazard Score           Place
                                                                               Based on         Vulnerability
                                                                % Change      Annualized         Scores from      Total Exposure
                           2005          2000         1990      from 2000-       Loss           2005 Hazards       (HAZUS MH
       County           Population    Population   Population      2005*       Estimates         Assessment           MR-2)
Marlboro County              28,021       28,818       29,361        -2.8%             221              133.88     $1,576,057,000
Union County                 28,539       29,881       30,337        -4.5%             160                57.61    $1,995,620,000
Bamberg County               15,880       16,658       16,902        -4.7%             151                74.77    $1,016,898,000
Williamsburg County          35,395       37,217       36,815        -4.9%             264              613.20     $1,932,286,000
TOTALS:                   4,255,083    4,012,012    3,482,753
*from April 2000 to
July 2005
               Source: U.S. Census Bureau


              PLAN UPDATE REQUIREMENT
              Because of FEMA requirements for plan updates, this section was reviewed and analyzed
              by the ICC as a result of the plan update completed in March 2007. Changes were made
              to this section to bring it into compliance with the FEMA requirements. The following
              summarizes the changes that were made to this Vulnerability Assessment during the plan
              update process:
                     Changes, clarifications, or refinements to the previous overview of the state’s
                      vulnerability resulting from any new or updated data, as well as information
                      generated through local mitigation plans.
                     Explanation of the process used to analyze information from the local risk
                      assessments and adjust the statewide risk assessment, as necessary (see Section 7:
                      Integration of Local Hazard Mitigation Plans).
                     Addressed changes in development that may impact vulnerability such as:
                           o Significant population increases and shifts in population to vulnerable
                             areas
                           o A concentration or change in land use or land activities in vulnerable
                             areas; and/or
                           o Implementation of mitigation actions that have reduced vulnerability
                     Updated the overview and analysis of vulnerable state owned or operated
                      buildings, critical facilities, and infrastructure, based on available data (to include
                      acquisitions or development of new properties and infrastructure).
                     Incorporated any changes, clarifications, or refinements, obtained from state-wide
                      or local loss estimates. (Updated loss estimates from new NCDC records)

              EMAP STANDARD 5.3.3—Impact Analysis
              SCEMD recognizes the need to conduct and document a ―post event impact analysis‖
              using that information and findings needed from the Vulnerability Assessment within this
              plan and the SC Hazards Assessment (2005). The impact analysis is prepared within the


              October 2004 – Updated March 2007             - 81 -                           Hazard Mitigation Plan
Vulnerability Assessment

State Emergency Operations Center (SEOC) Emergency Support Function 5 (ESF-5)—
Information & Planning and forms an integral part of the State Situation Report. The
post event impact analysis will identify the detrimental impact of the hazard event within
the boundaries of the event (city, county, or the state).




October 2004 – Updated March 2007         - 82 -                      Hazard Mitigation Plan
Vulnerability Assessment


CONCLUSIONS ON VULNERABILITY AND POTENTIAL LOSS ESTIMATION
Table 6.33 presents the future annual probability of damages associated with each hazard
by county.      The annual probabilities for flood, hurricane wind, thunderstorm,
winterstorm, wildfire, tornado, lightning and dam failure are calculated based on
historical data obtained from the National Climate Data Center, SC Climate Office, SC
Forestry Commission, and SC Hazard Mapping Interface. The annual probability for
earthquake is limited to any events classified as Modified Mercalli Scale Intensity (MMI)
levels of VI and greater. Annual probability for drought is based on the number of
months that each county experienced incipient, moderate, severe or extreme drought per
year. Coastal erosion probability represents annual erosion rate feet-per-year.

Table 6.34 shows annualized loss estimation by county (in order of greatest to least
annualized loss total) for the flood, hurricane wind, drought, tornado, earthquake, winter
storm, coastal erosion, thunderstorm, lightning, wildfire and hail hazards for the state of
South Carolina. The state experiences approximately $1.7 billion in damages annually
from the natural hazards listed above. Among these 11 hazards, the drought, hurricane
wind and flood hazards pose the highest threats to South Carolinians. Charleston County
experiences the highest annualized loss from all 11 natural hazards, with the hurricane
wind hazard being the most significant hazard for the county, causing over $183 million
in damages per year. Other counties including Horry, Richland, Florence, Greenville,
Beaufort and Spartanburg are expected to suffer more than $40 million annually due to
natural hazards.

Table 6.35 shows hazard score by county for the 11 hazards analyzed in this section.
Based on the annualized loss estimation for each hazard, 46 counties are scored 1 through
46. The county with the highest annualized loss for a given hazard received the highest
score possible (46) while the county with the lowest annualized loss received the lowest
possible score (1). A blank box indicates that no risk exists for that particular hazard.
For example, coastal erosion in the Central and Piedmont regions is nonexistent. Such
communities were omitted from the scoring process for that hazard ranking. Among the
46 counties, Edgefield and Allendale Counties had the lowest hazard scores. Allendale,
Edgefield, Calhoun, Marion, Fairfield, McCormick Chester and Jasper counties fall into
the lower 20 percentile. Horry County received the highest hazard score, followed by
Greenville and Charleston Counties.




October 2004 – Updated March 2007          - 83 -                      Hazard Mitigation Plan
                                                                            TABLE 6.33
                                                    FUTURE ANNUAL PROBABILITY BY HAZARD AND BY COUNTY
                                                                         HAZARD FREQUENCY % CHANCE PER YEAR
                                      HURRICANE/
            COUNTY                                     EARTH-   THUNDER-    WINTER-                                                 COASTAL-     DAM-
                           FLOOD       TROPICAL                                         WILDFIRE    TORNADO   LIGHTNING   DROUGHT
                                                       QUAKE     STORM      STORM                                                   EROSION10   FAILURE
                                        STORM
        Abbeville           67.74          3.87          3.90     1.88       46.43        5229.41    25.00      0.57       432.14     0.00       0.00
        Aiken               64.52          7.10          1.62     3.75        7.14       16905.88    35.71      0.71       398.21     0.00       0.07
        Allendale           48.39         10.97          0.65     1.10        7.14        3200.00    19.64      0.07       410.71     0.00       0.29
        Anderson            138.71         3.87         14.94     5.12       75.00        4676.47    44.64        1        442.86     0.00       0.00
        Bamberg             51.61         12.26          0.97     1.61        7.14        5105.88    12.50      0.14       375.00     0.00       0.07
        Barnwell            41.94          7.74          1.95     1.57        7.14        5035.29    30.36      0.36       375.00     0.00       0.00
        Beaufort            138.71        16.13          0.32     2.33        3.57        7982.35    23.21      2.29       410.71     4.22       0.00
        Berkeley            135.48        16.77        175.00     3.02        8.93       31894.12    32.14       0.5       410.71     0.00       0.00
        Calhoun             51.61         12.90          0.65     1.49        8.93        4600.00    14.29      0.07       344.64     0.00       0.00
        Charleston          235.48        16.13         11.04     3.98        8.93       10923.53    33.93      0.79       408.93     1.96       0.00
        Cherokee            100.00         4.52          0.00     2.78       85.71        5947.06    16.07      0.79       444.64     0.00       0.00
        Chester             70.97          7.10          2.27     1.73       58.93        4517.65    14.29        0        473.21     0.00       0.00
        Chesterfield        58.06         12.90          0.65     1.73       21.43       13376.47    30.36      0.21       303.57     0.00       0.36
        Clarendon           51.61         14.84          0.32     1.90        8.93       18376.47    30.36      0.43       344.64     0.00       0.00
        Colleton            90.32         18.71          0.65     3.41        0.00       22758.82    19.64      0.14       410.71     0.00       0.00
        Darlington          38.71          9.68          0.00     2.06       21.43       12005.88    33.93      0.36       308.93     0.00       0.00
        Dillon              41.94          7.74          0.00     1.43       19.64        6764.71    21.43      0.14       308.93     0.00       0.00
        Dorchester          77.42         15.48         62.01     2.78        8.93       13182.35    26.79      0.71       410.71     0.00       0.00
        Edgefield           29.03          3.87          0.97     1.22        7.14        3464.71    14.29        0        398.21     0.00       0.00
        Fairfield           38.71          8.39        180.19     1.76       17.86        6482.35    23.21        0        439.29     0.00       0.00
        Florence            96.77         10.97          0.32     2.82       16.07       20835.29    48.21      1.07       308.93     0.00       0.00
        Georgetown          170.86        13.55          0.65     1.53        7.14       12605.88    17.86        1        308.93     2.95       0.00
        Greenville          354.84         6.45          2.27     6.20       98.21        4988.24    32.14      1.14       448.21     0.00       0.07
        Greenwood           112.90         5.81          0.97     2.84       41.07        7429.41    17.86      0.71       432.14     0.00       0.00
        Hampton             41.94         12.26          0.00     1.61        5.36        9064.71    23.21      0.14       410.71     0.00       0.00
        Horry               232.26        13.55          0.00     3.31       10.71       18341.18    58.93      1.64       308.93     0.65       0.00
        Jasper              77.42         17.42          0.00     1.33        3.57       17247.06    14.29        0        410.71     0.00       0.00
        Kershaw             61.29          7.74          0.97     2.53       19.64      112000.00    26.79      0.14       439.29     0.00       0.29
        Lancaster           58.06          8.39          0.00     1.63       21.43        4600.00    16.07      0.57       439.29     0.00       0.00


10
     Annual coastal erosion rate (Feet-Per-Year).




October 2004 - Updated March 2007                                              - 84 -                                                  Hazard Mitigation Plan
                                                                   HAZARD FREQUENCY % CHANCE PER YEAR
                                HURRICANE/
       COUNTY                                  EARTH-    THUNDER-     WINTER-                                                COASTAL-     DAM-
                      FLOOD      TROPICAL                                         WILDFIRE   TORNADO   LIGHTNING   DROUGHT
                                               QUAKE      STORM       STORM                                                  EROSION10   FAILURE
                                  STORM
    Laurens           103.23         7.10       1.95        3.61        50.00      5458.82    16.07       0.5       442.86     0.00       0.00
    Lee               35.48          9.68       0.32        1.24        10.71      8400.00    14.29      0.07       344.64     0.00       0.00
    Lexington         83.87          9.68       1.95        5.02        10.71     23347.06    25.00       0.5       344.64     0.00       0.07
    Marion            45.16          6.45       2.92        1.57        12.50      4735.29    14.29      0.43       305.36     0.00       0.00
    Marlboro          48.39         11.61       0.00        1.61        26.79      7935.29    21.43      0.36       308.93     0.00       0.00
    McCormick         45.16         12.90       0.00        0.86        12.50      3705.88    23.21      0.14       401.79     0.00       0.00
    Newberry          48.39          7.10       6.82        2.20        17.86      4129.41    39.29      0.07       398.21     0.00       0.00
    Oconee            116.13         4.52       4.22        3.31       101.79      3958.82    35.71       0.5       448.21     0.00       0.07
    Orangeburg        74.19         24.52       6.49        4.02         8.93     23323.53    67.86      0.57       344.64     0.00       0.00
    Pickens           170.97         4.52       1.62        3.35        91.07      5535.29    28.57      0.43       448.21     0.00       0.00
    Richland          116.13        16.13       5.19        4.69        10.71      8670.59    44.64      0.71       344.64     0.00       0.00
    Saluda            35.48          3.87       0.65        1.41        10.71      3711.76    14.29        0        398.21     0.00       0.00
    Spartanburg       283.87         6.45       1.30        6.20        98.21      5235.29    46.43      2.07       444.64     0.00       0.07
    Sumter            48.39         14.19       0.32        2.71        10.71     13588.24    23.21      0.07       344.64     0.00       0.21
    Union             116.13         7.10       0.97        2.20        48.21      3964.71    23.21       0.5       442.86     0.00       0.00
    Williamsburg      48.39         14.19       0.00        1.24        10.71     33517.65    14.29      0.21       308.93     0.00       0.00
    York              109.68         7.10       0.32        3.43        57.14      4588.24    25.00      1.43       473.21     0.00       0.00
       Source: State of South Carolina Hazards Assessment (2005), NCDC, PBS&J calculations




October 2004 - Updated March 2007                                        - 85 -                                                 Hazard Mitigation Plan
                                                                                 TABLE 6.34
                                                ANNUALIZED LOSS ESTIMATION BY COUNTY AND BY HAZARD
                             HURRICANE                                  EARTH-        WINTER        COASTAL       THUNDER-
  COUNTY       FLOOD                   DROUGHT            TORNADO                                                          LIGHTNING         WILDFIRE       HAIL          TOTAL
                               WIND                                     QUAKE         STORM         EROSION        STORM
Abbeville       $2,207,477       $276,000     $363,908     $1,281,513     $137,000       $890,031                    $429,036     $66,793        $10,066           $0      $5,661,824
Aiken           $5,604,301      $4,016,000   $1,493,553      $57,489     $1,108,000            $0                     $52,922     $18,996        $47,625      $41,494     $12,440,380
Allendale        $201,161        $441,000     $445,114       $29,396       $88,000             $0                     $39,918   $7,220,838       $10,612           $0      $8,476,039
Anderson       $16,349,318      $1,832,000   $1,369,496     $290,898      $912,000       $913,425                    $867,930    $556,145        $13,010      $43,912     $23,148,134
Bamberg          $594,250        $676,000     $642,512      $115,063      $187,000             $0                     $63,235     $44,920        $14,544           $0      $2,337,524
Barnwell        $2,184,058       $806,000     $331,206      $504,521      $205,000             $0                    $501,340     $21,353        $14,984       $7,367      $4,575,829
Beaufort        $4,497,242     $50,439,000    $483,770       $53,738      $981,000             $0    $3,099,729      $133,310     $91,628        $29,956           $0     $59,809,373
Berkeley        $3,698,561     $26,295,000   $1,420,381     $199,593     $4,685,000            $0                    $299,579     $38,131       $139,632       $6,988     $36,782,865
Calhoun         $1,150,576       $563,000     $498,752       $39,639      $177,000             $0                    $272,832          $0        $13,018           $0      $2,714,817
Charleston     $21,048,312    $148,927,000    $693,892      $305,381    $11,327,000            $0    $1,193,498      $143,712     $64,590        $47,526           $0    $183,750,911
Cherokee        $1,939,826       $460,000     $672,345      $296,274      $221,000       $932,196                    $845,758    $133,439        $15,607    $1,046,269     $6,562,714
Chester         $3,872,748       $446,000     $512,309      $266,251      $173,000       $723,527                    $309,968          $0        $12,705           $0      $6,316,508
Chesterfield    $3,617,347      $1,105,000   $1,778,531    $1,127,774     $304,000        $26,443                    $398,355     $19,849        $41,096           $0      $8,418,395
Clarendon       $4,656,244      $2,393,000   $2,860,155     $124,215      $689,000             $0                    $158,148    $247,460        $70,285         $863     $11,199,370
Colleton        $3,136,810      $5,051,000    $652,938        $6,346      $705,000             $0                    $193,807          $0        $90,369           $0      $9,836,270
Darlington     $11,022,917      $2,973,000   $1,535,873     $192,061      $666,000       $337,908                    $683,615     $29,888        $40,461     $201,150     $17,682,873
Dillon          $2,403,195      $1,737,000   $2,355,780     $592,568       $45,000       $337,908                  $1,999,895    $352,288        $29,431       $9,810      $9,862,875
Dorchester      $1,902,011     $17,389,000    $444,303      $173,058     $3,231,000            $0                    $108,689      $5,152        $40,509           $0     $23,293,722
Edgefield       $1,786,426       $414,000    $1,644,611      $82,140      $152,000             $0                     $11,272          $0         $7,443      $19,413      $4,117,305
Fairfield       $2,725,117       $367,000     $450,637     $1,173,327     $177,000        $26,443                     $19,027          $0        $18,973       $3,495      $4,961,019
Florence       $15,508,814      $9,565,000   $1,672,949     $113,433     $2,146,000      $256,728                    $360,991     $31,444        $98,536   $19,602,445    $49,356,340
Georgetown      $2,971,500     $24,073,000   $1,037,034     $152,914      $692,000         $1,322    $1,212,634      $405,753     $21,218        $68,198       $7,764     $30,643,337
Greenville     $33,861,681      $4,373,000    $657,283      $537,160     $2,935,000      $928,382                    $707,262    $128,400        $20,415     $236,485     $44,385,068
Greenwood       $3,184,185       $947,000     $181,368      $812,506      $473,000       $888,943                    $398,449     $14,207         $9,619       $5,368      $6,914,645
Hampton          $249,868       $1,461,000    $318,033       $32,193      $194,000             $0                     $63,442     $68,515        $21,527           $0      $2,408,578
Horry           $8,692,027     $97,920,000   $2,452,784     $783,441      $514,000       $256,133     $975,234     $1,088,414     $21,972       $108,521      $32,840    $112,845,366
Jasper           $522,632       $2,632,000    $328,012        $3,551      $117,000             $0                     $62,885          $0        $74,498      $15,191      $3,755,769
Kershaw         $4,445,417      $1,535,000   $2,143,644    $1,068,812     $533,000        $26,443                    $896,802     $42,020        $40,135       $8,020     $10,739,293
Lancaster       $3,148,793      $1,055,000   $1,251,439    $1,205,584     $372,000        $26,443                    $218,745    $131,165        $12,226       $7,596      $7,428,991
Laurens         $7,332,797       $713,000     $468,902     $1,289,628     $385,000       $908,385                    $573,556    $175,527        $13,091      $47,189     $11,907,075




October 2004 - Updated March 2007                                                     - 86 -                                                               Hazard Mitigation Plan
                              HURRICANE                                     EARTH-        WINTER         COASTAL       THUNDER-
  COUNTY        FLOOD                   DROUGHT              TORNADO                                                            LIGHTNING           WILDFIRE       HAIL         TOTAL
                                WIND                                        QUAKE         STORM          EROSION        STORM
Lee             $1,229,055        $670,000      $1,415,256        $5,984      $168,000             $0                      $16,865       $72,104        $45,334      $90,175     $3,712,773
Lexington      $19,571,248       $6,854,000     $3,202,439     $1,667,610    $2,468,000            $0                      $99,517      $218,827        $30,413        $2,478   $34,114,532
Marion          $2,186,240       $3,401,000     $1,062,592      $167,925       $53,000       $257,455                     $755,958       $74,227        $19,530      $11,143     $7,989,070
Marlboro        $1,815,226       $1,016,000      $856,054      $2,195,834     $100,000       $368,602                     $378,576       $27,805        $31,586           $0     $6,789,683
McCormick       $1,981,755        $127,000        $44,905        $23,782       $45,000        $26,443                     $121,790       $52,297        $ 8,705     $220,202     $2,651,879
Newberry        $4,520,156        $651,000            N/A      $1,738,768     $264,000        $26,443                      $39,737       $89,069         $9,389           $0     $7,338,562
Oconee         $13,151,204        $563,000            N/A       $213,080      $341,000      $1,151,604                   $2,747,583      $26,817        $11,964     $276,922    $18,483,174
Orangeburg      $6,993,588       $4,617,000     $2,794,085      $336,578     $1,420,000            $0                      $57,579      $111,206        $74,245        $6,847   $16,411,128
Pickens         $5,507,071        $829,000       $239,581       $138,311      $553,000      $1,151,604                    $297,514        $9,857        $13,808     $567,789     $9,307,535
Richland       $24,573,165      $18,657,000           N/A       $408,806     $8,709,000            $0                     $115,515      $310,976        $35,404      $12,602    $52,822,468
Saluda          $2,600,758        $382,000      $1,609,989      $189,020      $145,000             $0                      $72,786            $0        $ 8,898    $3,321,030    $8,329,481
Spartanburg    $29,711,469       $2,630,000     $1,050,880      $447,239     $1,490,000      $928,382                     $349,221       $88,060        $12,565    $3,531,541   $40,239,357
Sumter          $7,358,578       $5,034,000     $2,093,888      $439,094     $1,520,000            $0                     $422,793      $292,546        $86,053        $2,638   $17,249,590
Union           $2,037,479        $355,000            N/A       $148,347      $163,000       $907,081                     $223,276       $15,739         $9,199      $61,848     $3,920,969
Williamsburg    $2,414,816       $3,753,000     $1,316,460       $41,344      $753,000       $257,441                     $418,182        $2,284       $168,224      $11,985     $9,136,736
York           $14,753,762       $2,426,000           N/A        $84,027      $923,000       $724,753                     $398,400       $46,422         $8,816        $5,308   $19,370,488
TOTAL          $314,921,183    $462,869,000   $777,790,183    $21,156,239   $53,646,000   $13,280,468     $6,481,096    $18,823,934   $10,855,774    $1,748,750   $29,466,167 $1,711,038,792




October 2004 - Updated March 2007                                                         - 87 -                                                                  Hazard Mitigation Plan
                                                               TABLE 6.35
                                    HAZARD SCORE BY COUNTY BASED ON ANNUALIZED LOSS ESTIMATES
                        HURRICANE                     EARTH-     WINTER     COASTAL   THUNDER-
  COUNTY       FLOOD      WIND    DROUGHT   TORNADO   QUAKE      STORM      EROSION    STORM   LIGHTNING   WILDFIRE    HAIL       TOTAL
Horry           36          45         43      36       25           28       43         44       17          44        32          393
Greenville      46          34         22      34       42           43                  39       36          23        40          359
Charleston      43          46         24      28       46           20       44         17       27          35        13          343
Florence        40          39         38      13       40           29                  27       21          43        46          336
Sumter          35          36         40      31       39           20                  34       42          41        16          334
Anderson        41          25         31      26       33           41                  42       45          14        34          332
Spartanburg     45          28         27      32       38           43                  26       32          12        45          328
Lexington       42          38         46      44       41           20                  12       40          27        15          325
Darlington      37          30         35      22       28           33                  38       20          31        38          312
Georgetown      20          42         26      18       30           21       45         32       15          37        24          310
Kershaw         27          23         41      38       26           27                  43       23          30        25          303
Richland        44          41          5      30       45           20                  14       43          29        29          300
Berkeley        25          43         33      23       44           20                  24       22          45        21          300
Orangeburg      33          35         44      29       37           20                  7        35          39        20          299
Laurens         34          15         16      43       23           40                  37       39          16        35          298
Dillon          16          24         42      35       1            33                  45       44          25        26          291
Beaufort        28          44         17      9        35           20       46         16       34          26        13          288
Clarendon       30          26         45      15       29           20                  18       41          39        14          277
Cherokee        10          9          23      27       18           44                  41       38          20        43          273
Williamsburg    17          32         30      8        32           30                  33       8           46        28          264
Oconee          38          11          5      24       21           46                  46       18          10        41          260
Chesterfield    24          21         39      39       20           27                  29       14          33        13          259
Aiken           32          33         34      10       36           20                  6        13          36        33          253
Lancaster       22          20         29      41       22           27                  20       37          11        23          252
Marion          14          31         28      19       5            31                  40       31          22        27          248
Pickens         31          17          8      16       27           46                  23       10          17        42          237
York            39          27          5      12       34           36                  30       25          3         18          229
Marlboro        8           19         25      46       1            34                  28       19          28        13          221
Greenwood       23          18          7      37       24           37                  31       11          7         19          214
Dorchester      9           40         13      20       43           20                  13       9           32        13          212
Colleton        21          37         21      3        31           20                  19       1           42        13          208
Barnwell        13          16         11      33       17           20                  36       16          19        22          203
Abbeville       15          2          12      42       7            38                  35       28          8         13          200
Newberry        29          12          5      45       19           27                  4        33          6         13          193
Lee             6           13         32      2        11           20                  2        30          34        37          187




October 2004 - Updated March 2007                                - 88 -                                               Hazard Mitigation Plan
                        HURRICANE                     EARTH-   WINTER   COASTAL   THUNDER-
 COUNTY       FLOOD       WIND    DROUGHT   TORNADO   QUAKE    STORM    EROSION    STORM   LIGHTNING   WILDFIRE    HAIL       TOTAL
Chester         26          8       19        25        12         35                25       1           13        13          177
Saluda          18          5       36        21        8          20                11       1           4         46          170
Union           12          3        5        17        10         39                21       12          5         36          160
Fairfield       19          4       15        40        12         27                3        1           21        17          159
Hampton         2           22       9        6         16         20                10       29          24        13          151
Bamberg         4           14      20        14        15         20                9        24          18        13          151
Jasper          3           29      10        1         6          20                8        1           40        30          148
McCormick       11          1        6        4         3          27                15       26          2         39          134
Calhoun         5           10      18        7         14         20                22       1           15        13          125
Edgefield       7           6       37        11        9          20                1        1           1         31          124
Allendale       1           7       14        5         4          20                5        46          9         13          124




October 2004 - Updated March 2007                              - 89 -                                             Hazard Mitigation Plan

				
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