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Trout Brook Project - Welcome to Cape Elizabeth

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Trout Brook Project - Welcome to Cape Elizabeth Powered By Docstoc
					Compensation Fee Utilization Plan (CFUP) -- Project Opportunities Survey & Summary List
for the Town of Cape Elizabeth
Focus Area: Trout Brook (Cape Elizabeth, South Portland)
Surveyors: Don Kale & Jeff Varricchione (MDEP); Maureen O'Meara (Cape Elizabeth planner); Survey Date: 11/26/07
Draft: April 3, 2008

               Problem                Start,                                                                    Recommended                                              Potential Obstacles
Project
Rank *




               Severity       Site   End, or                                                                        Actions                         Est.                        / Notes
          Town  Rank          **     Center                        Description                            (assuming funding is available)          Costs             (all require DEP approval )
                                                                                                                                                                Need to find a suitable sampling site in
                     2
                                               Contract out MDEP to conduct                                                                                     Cape Elizabeth (e.g., upstream of
                moderate;
                                               macroinvertebrate monitoring and (very basic,                                                                    crossing at Ocean House Rd./Rt. 77 ?).
                  (but of                                                                           MDEP Staff: Conduct biomonitoring and
  1        CE                 n/a      n/a     snapsnot, limited) water quality monitoring of                                                      $1,500       Not definite when that sampling would
                    high                                                                            basic water quality sampling.
                                               factors such as temperature, dissolved oxygen,                                                                   occur (2008? 2009? 2010?) - need to
                interest to
                                               specific conductivity, pH)                                                                                       check in with MDEP Biomonitoring
                   town)
                                                                                                                                                                group.

                                                                                                    Farmer:
                                                                                                    Create & maintain a riparian buffer of
                                                                                                                                                   Buffer:
                                                                                                    native trees & shrubs having at least 25 ft               Need farmer's cooperation and deed
                                               Maxwell Farm buffer                                                                                   $0
                                                                                                    in width away from streambank (75 ft is                   ammendments.
                                               -- stream through fields lacking buffer (though some                                               (no mow)
                    4                                                                               ideal). This can be accomplished                          Note : There was some evidence of
  2        CE                 2a      start    dogwood stems were obvious on the streambank;                                                     (810' x 25')
                 v. high                                                                            primarily by delineating a no-mow zone                    terrestrial invasive plants in the mowed
                                               they obviously had been mowed)
                                                                                                    and allowing existing shrubs (e.g.,                       buffer. Maintenance ought to try to
                                               -- appears to be a sewer line near the stream                                                     Cons. Ease.
                                                                                                    dogwood) to come back. Need to have                       remove as much of this as possible.
                                                                                                                                                  $ ?????
                                                                                                    assurances of longetivity by writing it into
                                                                                                    the deed (e.g., conservation easement).


                                                                                                    Farmer:
                                                                                                    Create & maintain a riparian buffer of
                                                                                                                                                   Buffer:
                                                                                                    trees & shrubs having at least 25 ft in                     Need farmer's cooperation and deed
                                               Maxwell Farm buffer                                                                                   $0
                                                                                                    width away from streambank (75 ft is                        ammendments.
                                               -- stream through fields lacking buffer (some                                                      (no mow)
                    4                                                                               ideal). This can be accomplished                            Note : There was some evidence of
  3        CE                 4a      start    scattered alders present)                                                                         (450' x 25')
                 v. high                                                                            primarily by delineating a no-mow zone                      terrestrial invasive plants in the mowed
                                               -- appears to be a sewer line near the stream
                                                                                                    and allowing existing shrubs (e.g.,                         buffer. Maintenance ought to try to
                                               STARTING PT. (same as end pt for site 2)                                                          Cons. Ease.
                                                                                                    dogwood) to come back. Need to have                         remove as much of this as possible.
                                                                                                                                                  $ ?????
                                                                                                    assurances of longetivity by writing it into
                                                                                                    the deed (e.g., conservation easement).




                                                                                                                                                                                        Page 1
               Problem            Start,                                                                     Recommended                                           Potential Obstacles
Project
Rank *



               Severity   Site   End, or                                                                         Actions                         Est.                     / Notes
          Town  Rank      **     Center                       Description                              (assuming funding is available)          Costs          (all require DEP approval )

                                                                                      Farmer
                                                                                      Create & maintain a riparian buffer of
                                                                                                                                     Buffer:
                                                                                      trees & shrubs having at least 25 ft in                             Need farmer's cooperation and deed
                                                                                                                                     $ 8,500
                                                                                      width away from streambank (75 ft is                                ammendments.
                                                                                                                                    (planted)
                 3.5                                                                  ideal). This can be accomplished                                    Note : There was some evidence of
  4        CE              3     center Buffer adjacent in-stream pond @ Maxwell Farm                                              (640' x 25')
                 high                                                                 primarily by delineating a no-mow zone                              terrestrial invasive plants in the mowed
                                                                                      and allowing existing shrubs (e.g.,                                 buffer. Maintenance ought to try to
                                                                                                                                   Cons. Ease.
                                                                                      dogwood) to come back. Need to have                                 remove as much of this as possible.
                                                                                                                                    $ ?????
                                                                                      assurances of longetivity by writing it into
                                                                                      the deed (e.g., conservation easement).

                                                                                               Cumberland Co. Soil & Water
                                                                                               Conservation District or Natural
                                        Maxwell Farm ag stormwater runoff area                 Resources Conservation Service:
                                        -- a low point in the land at the downgradient end of Address the stormwater runoff problem at
                                        a large farm field; it's draining farm runoff into the this point with the appropriate agricultural               Need farmer's cooperation and deed
                 3.5                    stream                                                 Best Management Practice (BMP). An                         ammendments. -- The farmer may
  5        CE              5     center                                                                                                          ????
                 high                   -- could use some BMP work to help continue with example of a possible fix might be a                             need to give up some cropland for
                                        drainage but reduce (assumed) sediment runoff          combination of a pre-treatment                             whatever BMP is chosen.
                                        LOCATION IS NEARLY SAME AS END PT. FOR stormwater (settling) pond that drains
                                        SITE 4.                                                across a level-lip-spreader and eventually
                                                                                               through a meadow before flowing into
                                                                                               Trout Brook.
                                        Church of Latter Day Saints - parking lot
                                        -- 1 storm drain that is near to and drains part of
                                        Rte 77
                                                                                                  Church Leaders / Land Owner /
                                        -- most of the parking lot itself looks like it's sheet
                                                                                                  Consultant / Contractor:
                                        flow drainage
                                                                                                  Consider resurfacing with                     ?????
                                        -- curbing on the edges of the parking lot may
                                                                                                  pervious/porous asphalt or concrete
                                        concentrate stormwater flows, but there was no
                                                                                                  material, or installing bioretention        Needs to be
                  3                     obvious erosion areas near them (that may have                                                                     Need church leader and landowner
  6        CE              8     center                                                           systems, when the parking lot is in a       determined
                 high                   been covered by autumn leaves, but Don K looked                                                                    cooperation.
                                                                                                  state where it needs to be re-surfaced.         by
                                        around for a while)
                                                                                                  This pervious parking lot would also        consultant /
                                        -- the shoreland on the bank of Trout Brook
                                                                                                  provide treatment for some of the runoff    contractor.
                                        opposite the LDS church is eroding noticeably
                                                                                                  coming down Rte. 77.
                                        -- might be a candidate for pervious parking
                                        material or bioretention cells if they have capital
                                        improvements scheduled in the not-too-distant
                                        future




                                                                                                                                                                                  Page 2
               Problem                                Start,                                                                 Recommended                                             Potential Obstacles
Project
Rank *




               Severity      Site                    End, or                                                                     Actions                          Est.                      / Notes
          Town  Rank             **                  Center                      Description                           (assuming funding is available)           Costs           (all require DEP approval )

                                                               Example of mowing to the edge of the stream      Cumberland Co. Soil & Water
                            watershed-wide problem



                                                               -- no real site / location measured here; it was Conservation District:
                                                                                                                                                                           Maybe host an ice cream social hosted
                                                               figured that a watershed-wide education campaign Create an watershed-wide riparian buffer
                                                                                                                                                                           by the local gardening club, run
                                                               would need to be waged.                          / Yardscaping education campaign that
                                                                                                                                                                           newspaper articles, provide free
          CE /      3                                                                                           makes to sure include recommendations           $6,000 -
                                     5.5




  7                                                  center                                                                                                                technical assistance to local
          SP       high                                     (Note: This recon trip focused on Cape Elizabeth    that protect stream shading. (Make sure         $12,000
                                                                                                                                                                           homeowners, and do demonstration
                                                            sites, though a few stream crossings and sections that trees and shrubs are promoted for
                                                                                                                                                                           projects at visible, (buffer problem)
                                                            in South Portland were reconned as well. This       their shading benefits.) Create
                                                                                                                                                                           locations.
                                                            recon trip did not take the time to walk the whole  demonstration project sites at some
                                                            stream and document all potential buffer problems.) residences.


                                                                                                                  Homeowner / Consultant:                       Buffer:
                                                                                                                                                                           Need homeowner cooperation.
                                                                                                                  a) Plant & maintain riparian buffer of        $ 2,000
                                                                                                                  native trees & shrubs having at least 25 ft (planted)
                    3                                                                                                                                                      (Length needs to be re-measured in
  8        CE                      6                 center Significant residential buffer problem                in width away from streambank (75 ft is     (150' x 25')
                   high                                                                                                                                                    the field because it was not measured
                                                                                                                  ideal); or b) just let it grow back with
                                                                                                                                                                           closely in the field and current aerials
                                                                                                                  trees/shrubs with some live staking        Cons. Ease.
                                                                                                                                                                           do not have good enough resolution.)
                                                                                                                  dogwoods to speed up the process             $ ?????

                                                                                                                                                                           Need homeowner cooperation. Note :
                                                                                                                  Homeowner / Consultant:                       Buffer:    There already appears to be some sort
                                                                                                                  a) Plant & maintain riparian buffer of        $ 1,400    a 10 ft buffer comprised of mainly tall
                                                                                                                  native trees & shrubs having at least 25 ft (planted) grasses, and flowers (??).
                    2
  9        CE                      1                 center Buffer at residence above Maxwell Farm                in width away from streambank (75 ft is     (100' x 25')
                 moderate
                                                                                                                  ideal); or b) just let it grow back with                 (Length needs to be re-measured in
                                                                                                                  trees/shrubs with some live staking        Cons. Ease. the field because it was not measured
                                                                                                                  dogwoods to speed up the process             $ ????? closely in the field and current aerials
                                                                                                                                                                           do not have good enough resolution.)




                                                                                                                                                                                                    Page 3
               Problem             Start,                                                                     Recommended                                                Potential Obstacles
Project
Rank *



               Severity    Site   End, or                                                                         Actions                            Est.                       / Notes
          Town  Rank       **     Center                       Description                              (assuming funding is available)             Costs            (all require DEP approval )

                                                                                                                                                               Need permission from the city, DEP,
                                                                                                                                                               and IF&W.
                                                                                                City of South Portland or Consultant /
                                                                                                Contractor:
                                                                                                                                                               Some notes about possible cost range
                                                                                                a) Determine whether fish passage
                                                                                                                                                               are presented in footnote 1 below.
                                                                                                probably existed prior to road and home
                                         Culvert at Providence and Marsh Streets (S.
                                                                                                lot construction (i.e., is the culvert
                                         Portland)                                                                                                            Note: A preliminary site visit by Jeff V.
                                                                                                situation on a bedrock/ledge outcrop with
                                         -- [site recommended in DEP-DEA's urban stream                                                                       and Don K. (DEP) did not find strong
                                                                                                a natural falls too high for fish [e.g., trout]
                                         study [2004]                                                                                                         evidence to suggest that ledge is
                                                                                                passage.
                                         -- the culvert is hanging (by about 7 ft)                                                                            present under the culvert. Also,
                                                                                                b) If ledge/bedrock is not an issue, then
                                         -- there also appears to be a stormwater discharge                                                                   feedback from Dave Thomes (S.
                                                                                                install a bottomless arch culvert with a
                                         pipe here, but it's source / drainage area is                                                                        Portland Water Resource Protection)
                                                                                                "normal stream substrate" bottom. (If
                                         unknown to us                                                                                             $ 75,000 - said: "There very well could have been
                                                                                                constructed properly and large enough,
                                         -- there is a moderately unstable hiking trail nearby                                                     $125,000 a way for passage. I say that because
                                                                                                this might alleviate further flooding and
                  3.5                    -- downstream of the culvert, the channel is                                                                         at one time a couple more sections of
 10        SP              10     center                                                        culvert blowout issues, which would be a
                  high                   overwide, has significantly eroding banks                                                                            pipe existed on the concrete culvert in
                                                                                                cost savings.)
                                         -- the culvert itself appears fairly undersized                                                              (See    question and the stream did not drop
                                         -- upstream of the culvert is an interesting channel:                                                    footnote 1) off so quickly as you see it today.
                                                                                                Note: DEP or consultant may be able to
                                         it parallels the road, has virtually no floodplain, is                                                               During the storm of October 1996
                                                                                                use a small auger out there to determine
                                         very close to house (they probably flood                                                                             several of these sections were blown
                                                                                                depth to bedrock, if any. (Might need to
                                         periodically)                                                                                                        off and a large wash-out occurred. At
                                                                                                wait until spring since ground is probably
                                                                                                                                                              that time Public Works took old granite
                                                                                                frozen now.)
                                         Essentially cuts Trout Brook into 2 halves, in terms                                                                 curbing, concrete and any other items
                                         of fish habitat/passage: upstream and downstream                                                                     they could find to stabilize the side of
                                                                                                Project SHARE (Salmon Habitat
                                         halves.                                                                                                              the roadway where the section of
                                                                                                Restoration & Enhancement) & partners
                                                                                                                                                              culverts had been lost. This may
                                                                                                have done a number of these types of
                                                                                                                                                              answer you other question.... about if
                                                                                                projects in Washington county and may
                                                                                                                                                              the pipe is sitting on ledge? I don't
                                                                                                be a good resource.
                                                                                                                                                              believe it is... It may just be all the man
                                                                                                                                                              made debris I just mentioned.".


                                                                                                                                                 Buffer:
                                                                                                                                                               Need homeowner cooperation.
                                                                                                   Homeowner / Consultant:                       $ 1,400
                                                                                                   a) Plant & maintain riparian buffer of       (planted)
                   2                                                                                                                                           (Length needs to be re-measured in
 11        SP               7      start    Modified buffer/bank                                   native trees & shrubs having at least 25 ft (100' x 25')
                moderate                                                                                                                                       the field because it was not measured
                                                                                                   in width away from streambank (75 ft is
                                                                                                                                                               closely in the field and current aerials
                                                                                                   ideal).                                     Cons. Ease.
                                                                                                                                                               do not have good enough resolution.)
                                                                                                                                                $ ?????




                                                                                                                                                                                        Page 4
Project        Problem               Start,                                                                        Recommended                                           Potential Obstacles
Rank *         Severity      Site   End, or                                                                            Actions                        Est.                      / Notes
          Town  Rank          **    Center                         Description                               (assuming funding is available)         Costs           (all require DEP approval )

                                                                                                        City of South Portland:
                                            Culvert at Highland Avenue crossing
                                                                                                        Hire a fluvial geomorphologist and
                                            -- [site recommended in DEP-DEA's urban stream                                                         Combined
                                                                                                        hydraulic engineer to properly assess the
                                            study [2004]                                                                                          with site 12:
                                                                                                        situation and design/implement a habitat
                                            -- channel downstream has probably been
                                                                                                        restoration and culvert (or bridge)
                                            straightened; little floodplain; little habitat diversity                                              $900,000
                                                                                                        replacement project. Work with a
                                            (e.g., large woody debris [LWD], boulders, etc)                                                             ???
                   2                 start,                                                             stormwater specialist to trace back
 12        SP                 11            -- upstream of culvert are pretty bad buffer                                                                        Need permission from the city.
                moderate            center                                                              source of stormwater discharge pipes
                                            conditions on house lots                                                                              (parking lot
                                                                                                        and implement most sensible LID retrofit
                                            -- the culvert embankments appear to have been                                                        stormwater
                                                                                                        (e.g., porous pavement, bioretention
                                            fortified recently                                                                                    LID retrofits
                                                                                                        cells, etc.). Enhance riparian buffer.
                                            -- there are a handfull of stormwater pipes entering                                                       not
                                            the channel below this culvert (mostly towards site                                                    included)
                                                                                                        Combine this project with Site 12 for
                                            12)
                                                                                                        maximum benefit.

                                            Culvert at Broadway Street crossing                         City of South Portland / Consultant /
                                            -- [site recommended in DEP-DEA's urban stream              Contractor:
                                            study [2004]                                                Hire a fluvial geomorphologist and         Combined
                                            -- channel upstream has probably been                       hydraulic engineer to properly assess the with site 11:
                                            straightened; little floodplain; little habitat diversity   situation and design/implement a habitat
                                            (e.g., large woody debris, boulders, etc)                   restoration and culvert (or bridge)        $900,000
                                            -- there are a handfull of stormwater pipes entering        replacement project. Work with a                ???
                   2                center,
 13        SP                 12            the channel above this culvert                              stormwater specialist to trace back                     Need permission from the city.
                moderate             end
                                            -- there appears to be significant bank erosion             source of stormwater discharge pipes      (parking lot
                                            upstream of this culvert, though it may be due at           and implement most sensible LID retrofit stormwater
                                            least partially to rising / falling tides, or it may be     (e.g., porous pavement, bioretention      LID retrofits
                                            due mostly to large stormwater volumes and                  cells, etc.). Enhance riparian buffer.         not
                                            undersized culvert openings -> needs more study                                                        included)
                                            -- best case scenario?: install a bridge and add            Combine this project with Site 11 for
                                            some LWD                                                    maximum benefit.




                FOOTNOTES
                      * Project Rank = a ranking for project arrived at by compromise between Cape Elizabeth and MDEP.
                       **   Sites 9 (stormwater catch basin) and 13 (Hinkley Park trail erosion) were not included in this list because they were not considered to be of high mitigation value.

                        1 Some examples of costs of bottomless arch culverts:
                          (Some grant funding assitance might be available from organizations such as USFWS Gulf of Maine Program, NOAA, Fish America Foundation, Casco Bay Estuary
                          Partnership habitat restoration fund, etc.)
                            Upper Squaw Creek Watershed, Boise National Forest, Idaho
                            http://www.stream.fs.fed.us/fishxing/case/wilson_creek/index.html
                            Single radius structural steel plate arch on precast concrete footings
                            Arch Culvert: Span = 16.0 ft (4.9 m), Rise = 7.1 ft (2.2 m), Length = 48 ft (14.6 m)
                            Total Project Cost: ~ $74,000
                            Mattole River Watershed, California
                                                                                                                                                                                       Page 5
               Problem             Start,                                                                     Recommended                          Potential Obstacles
Project
Rank *




               Severity    Site   End, or                                                                         Actions               Est.              / Notes
          Town  Rank        ** Center                          Description                           (assuming funding is available)   Costs   (all require DEP approval )
                          http://www.stream.fs.fed.us/fishxing/case/clearcreek/
                          Single Radius Structural Steel Plate Arch on concrete footings
                          Culvert Dimensions: Span = 18.0 ft (5.5 m), Rise = 9.25 ft (2.8 m), Length = 110 ft (33.5 m)
                          Total Project Cost: ~ $264,641




                                                                                                                                                                Page 6

				
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