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2012_fish_barrier_atlas_standish
Casco Bay Watershed Fish Barrier Priorities Atlas February 2012 Casco Bay Watershed Fish Barrier Priorities Atlas March 2012 Background This atlas was created to help guide restoration of streams affected by road-stream crossings and dams acting as barriers to fish passage in the Casco Bay watershed as part of a project coordinated by the Casco Bay Estuary Partnership (CBEP) and U.S. Fish and Wildlife Service Gulf of Maine Coastal Program (USFWS-GOMCP). The 42 individual town maps of the atlas contain crossings, dams and a small number of natural barriers identified during field surveys 1 of perennial streams in 2009 and 2010, and mapped using a geographic information system (GIS). Sites have been classified by the degree of restriction they represent for fish passage, and additional related data such as high priority stream habitat and flood hazards are shown in the maps to help identify priority sites. Data have been compiled into a database for use in analysis and mapping. Although habitat needs for fish are best understood at the scale of whole streams, which bear little relationship to town boundaries, this atlas was created primarily for use by municipal public works employees and other staff and representatives focusing on local road systems. Therefore, each map page represents a town or city, and is shown at a scale suitable to include the entire community on one page. An index map shows the location of each town within the watershed, and a legend page provides explanation of symbols used on individual maps. Barriers from outside the Casco Bay watershed are shown where data are available, but masked to focus on the towns and portion of towns which are within the watershed. Fish Barriers Road-stream crossings are shown with SiteID numbers to help identify them in the barrier database. Dams, in most cases, have labels both of SiteID and the dam’s common name, if one is known. Severe barriers are defined as those road/stream crossings where fundamental physical barriers exist at either the inlet or outlet of the crossing, including inlets or outlets “perched” above the stream channel, and inlets blocked at least 50%, usually by debris. Potential barriers cover a wide spectrum of road-stream crossing situations where fish passage problems are likely to exist at some flows for some species or age groups of fish, and passage of other aquatic organisms such as amphibians and macroinvertebrates is likely also limited. Sites that were inaccessible to survey crews, and therefore not surveyed, are shown as unsurveyed, but are included in our analysis as Potential barriers. Dams are classified by whether or not they have effective facilities in place to provide upstream fish passage. Natural barriers, including waterfalls, debris jams (including woody debris or rock and fine sediments), and beaver dams were assessed when in close proximity to surveyed crossings and dams, and are mapped as well. Priority Streams USFWS-GOMCP and CBEP staff consulted with state fisheries biologists to identify streams with important fish habitat, primarily for brook trout or Atlantic salmon, or both. These priority streams are highlighted on the maps. The scope of the road/stream crossing barrier assessment was limited to perennial streams, those with continuous flow year round. Although intermittent streams were not surveyed, fish using priority streams also rely on connectivity with intermittent tributaries at various times of year. There are likely to be additional barriers on important intermittent streams that have not been assessed. Flood Hazards The maps present data from Cumberland County Emergency Management Agency (CCEMA) and CBEP to show where flood hazards are likely to overlap with fish barriers. CCEMA, in cooperation with towns, has identified many road crossings as flood hazards based on past flood events. CCEMA sites are marked by purple circles, and do not always coincide with barrier survey sites because they may be located on intermittent streams or larger rivers crossed by bridges, which are generally passable for fish but may still entail flood hazards. 1 Field surveys were conducted based on protocols from the Maine Road-Stream Crossing Survey Manual (http://www.maine.gov/doc/mfs/fpm/water/docs/stream_crossing_2008/MaineRoad-StreamCrossingSurveyManual2008.pdf). Where these sites do coincide with barriers, the combination of flood hazard with fish passage problems should place them high on any town’s priority list for replacement. A second set of flood hazard sites was derived from the barrier survey data by CBEP Director Curtis Bohlen. In CBEP’s analysis, the capacity of each crossing was compared to the expected flows for that specific crossing during a 25-year flood event. Where sufficient crossing data exists, flows were calculated based on the relationship between drainage area above the crossing, and the proportion of the drainage area occupied by National Wetland Inventory-defined wetlands. CBEP flood hazard sites are shown as red circles, and represent all crossing sites where the capacity of the crossing was less than 50% of the expected 25-year flood value. This is meant as a general indication of flood risk, but may be incorrect in some locations based on site-specific factors. As with CCEMA sites above, where these sites coincide with barrier sites, the combination of flood hazard with fish passage problems should place them high on any town’s priority list for review and possible replacement. Other Data Land use and wetland data are mapped to provide helpful landscape information, with upland forested areas distinguished from wetland, open, or developed areas. Public and private roads and railroads are included, as are all streams in the watershed, both perennial and intermittent. Relief shading is provided to help make reading the topography of the maps somewhat more intuitive. Tidal crossings, due to the increased complexity involved with crossing designs for two-way flow and maintenance of coastal wetlands, are denoted separately on the maps. Any town or other entity with plans to replace culverts at tidal crossings is invited to contact CBEP to explore partnership and grant funding opportunities. Town-based data summary tables for all barrier sites classified as Severe or Potential on high priority streams are provided following the maps. Each town has a two-page summary of key attributes from the database to provide information on location, dimensions and site conditions. Data Sources The data used to create this atlas came from a variety of sources. CBEP and USFWS-GOMC funded field surveys, with significant volunteer assistance from Trout Unlimited. Many resources were supplied by USFWSGOMCP, including software, hardware, and data. Most barrier data was developed by USFWS-GOMCP from field survey data, though some was provided by the Kennebec Estuary Land Trust, which conducted surveys in the easternmost portion of the watershed. Flood hazard data is from either CCEMA, or from Curtis Bohlen’s CBEP flood hazard analysis. Priority streams data was developed by USFWS-GOMCP, MDIFW, and the Maine Department of Marine Resources based on survey data of fish occurrences and habitat surveys. Basemap data, including relief shading, roads, town boundaries and most watershed polygons were supplied by the Maine Office of Geographic Information Systems. The roads data mapped is primarily from the Maine Department of Transportation dataset. Dam data is modified from original data from the Maine Department of Environmental Protection. Hydrography data came from high resolution National Hydrography Dataset (NHD). Disclaimer Please be aware that the data contained in the maps and tables of this atlas may contain errors, and represents the best information available at the time of publication. Note that crossing surveys were conducted in 2009 and 2010, and some sites surveyed may have undergone important changes based on flood events, maintenance or even entire replacement of a crossing. Likewise, flood hazard sites identified by CCEMA may have been modified based on previously planned work to lessen flooding problems. For more information, please contact: Alex Abbott c/o Gulf of Maine Coastal Program U.S. Fish and Wildlife Service 4R Fundy Rd. Falmouth, ME 04105 Telephone: 207-781-8364, ext. 21 Electronic Mail: alexoabbott@hotmail.com Matt Craig Casco Bay Estuary Partnership PO Box 9300, 34 Bedford Street Portland, ME 04104-9300 Telephone: 207.228.8359 Electronic Mail: mcraig@usm.maine.edu Website: www.cascobayestuary.org Casco Bay Barriers by Town Index Map Legend Bethel Roads Highway Interstate 35 Mason Twp Town Boundary Greenwood Albany Twp Rivers, Ponds & Coastal Waters Stoneham 5 Norway 118 Waterford Lovell 117 35 Sweden Harrison 37 93 117 Lewiston Otisfield Bridgton 202 121 Poland 107 121 85 11 123 35 Gorham Phippsburg 216 237 Westbrook 100 25 1 B Portland 114 22 22 295 South Portland Scarborough C a sc Cape Elizabeth G U 5 10 Miles L 20 y A I N E M O 95 a o Saco 0 209 24 88 202 Buxton Harpswell 115 Falmouth 237 West Bath Freeport Yarmouth Cumberland 302 114 26 1 Brunswick 9 North Yarmouth 95 115 Windham 295 Pownal 115 Standish Bath 136 Gray Frye Island 25 Durham 231 202 Sebago Lake Baldwin Auburn 125 Raymond Sebago 136 122 New Gloucester Casco Naples Hiram 26 11 302 Denmark 95 F F Map Created 2/20/2012 Casco Bay Barriers by Town Legend Rd Windham Pettingill Neg au Rd Le is 8092 Ac ure re s Pond Ln 9112 Raymond Sebago Potential Passable 8262 d 8731 Severe Wil 8049 Unknown Dams11 Sebago Lake 8666 No Upstream 9082Fish Passage Planned Upstream Fish Passage Upstream Fish Passage Frye Island 8865 8271 e idg Br 8860 9071 8864 8094 ge Rid 302 8269 Sebago Rd Bridge (Passable) Birch Rd Baldwin White's 8235 Hy d e B r oo k 648 Crossing Barrier Type with SiteID D0390 Lake Dam 8110 9434 Eel Weir 9080 Dam 8679 D0374 8677 Debris/Beaver Dam (Impassable) Waterfall (Impassable) MDOT Crossing Tidal Site 8685 m on s ar 35 8723 g Sp ri n sR File d 8298 9428 202 ro o k yB 8954 9306 u ll Rd 8197 9427 G M w River Rd Fa rr in l 8198 vev ille 8355 Go Scale Varies by Town See scale bar at bottom of each map Deer Pond do ea d d R Di ng l ey Rd pe e Ch ico Fo gg Rd d Rd Rd 8363 8491 Tra i Rd Unnamed Little River Trib Dam d ee 8952 n ny ip La 8745 Rd 8951 Ph i ss r rke d t Rd Rus 8744 Pa ke y 8248 8163 8737 St nR Rd Oy R Cla n Fin rR r Lo 8953 ng Pl ain s Tu r rth 8507 i ve eR 8963 9429 8169 Pine Ridge Dam 8335 W eb 8950 ste Buxton 22 8506 tl Lit 112 d Hollis Bonny Eagle Pond No 8161 8367 8170 D0386 s to Hu Gorham 8162 il R ne Li Open or Developed Lands 8736 Br ding d Forested Lands These maps are created primarily with 1:24,000 scale basemap data, with landcover data added to provide general distinctions between open Killick and forested lands. Areas outside of the Casco Pond are masked to obscure them. Bay watershed a Tr rR 35 St 8155 ck St 237 Har ea Sp Watershed Boundary Bu ee ip ss O 8874 d D0377 o R Gambo Dunlap mb RFalls d Ga Dam 8720 M igh ty Rd 8967 8733 Intermittent Stream 8157 8710 gt on 25 8794 8147 Rd Perennial Stream Rivers, Ponds & Coastal Waters 8146 l Hi l Rd 8145 Fo rt Sp ill er Hi ll 8368 8247 8722 Rd O ak W ils on R 9333 8148 k Rd Town Boundary Watchic Pond 8139 8141 9335 oo 8709 8234 Br Moody 8714 Railroad 8261 8012 8137 N ok on 8707 Interstate D0372 8131 8478 8703 113 Wetland 9095 8704 Standish Dundee Pond Dam 8283 d 8128 8696 Highway Wards Pond Pond Rd 8127 9091 as Public Dundee Pond 8523 9089 Ke mp R Private D0385 8119 West c ott Bro Little Watchic Pond Roads ac 8369 Dam 9259 Rich Mill Pond Dam Boundary Rd Oa k Hill Rd Priority Stream Be H Flood Hazard - Cumberland County EMA Flood Hazard - CBEP Analysis Rich Millpond 8472 hR Bla ke 11 North Gorham 114 8546 0 0.5 1 2 Miles 3 Map Created 2/20/2012 Casco Bay Barriers by Town Standish D0409 Jordan Bay 8636 302 8639 e st Raymond k Wild 8262 Lei 11 nell Rd l Bur Car Sebago Lake 8666 Ac re s au Pettingill Pond Rd Birch Rd Br i dg 8271 e 8860 8864 9071 8094 Ridge 9082 Baldwin Neg Ln 8092 sur e W hite's Mill Pond Rd Sebago hw Nort r Rive Rd rch Fitch Mu Hyde Br o o 648 8269 D0390 Sebago Lake Dam 8110 8677 9434 9080 8679 D0374 Eel Weir Dam 8472 8685 h ac Be ar m Rich Mill Pond Dam 9259 Pond Rd Rd d ll Hi Do Miles 3 G 4 le Rd R Rd Fo gg 2 on Rd i 8355 Rd e ttl Li Ch ico 1 od Wo 8491 Tr ail d il ev ov 8745 ee sip 0.5 8363 yR Cla La ke y ill rt H Fo ook Br Os Rd 8951 8952 0 8744 112 We bs 8950 ter Rd ver ip 8963 8248 8737 t Rd Rus les Fi rook B Sk Tu r 8506 R ttle Li Hollis le Litt 8507 8335 Buxton 22 9429 8169 Pine Ridge Dam Rd ne Li pe e Rd 8170 D0386 8163 Fa r 8367 8155 t rin gt Di ng ley ug l as il Sp a Tr d rin g rR ee ip ss O ea Sp 35 8162 No 8161 rd Wa ook Br Li St 8736 S rth Rd 8147 iver ttle R 8874 8733 M igh ty Rd 8157 8967 B 8720 v er h B tt l e R iv Dunlap o rth Fo rt Sha ws Mill Rd S Br pille rR oo k d Rd N 8146 ch ran Hi ll 8145 8722 8723 Bla ke R ak ra er nc O ok 8368 Rd 8247 8148 r th No L i las ug Do ook Br 25 35 ke La 9333 8714 Standish ago 8139 9335 W ils on Rd d 8709 n 8234 Ke mp R Otter Ponds 8261 8012 237 Br o S ti 8137 ok 114 Seb 113 8131 8478 8707 Moody cky R Ha rmo n D0372 Dundee Pond Dam 9095 8704 8703 iver Hi ll Rd 8696 Dundee Pond 8283 F B r arm ook 8128 N as o Oak Hill R d 8127 West c ottBro 9091 8523 9089 8695 Ri ve r Boundary Rd 11 D0385 H Duck Pond 8369 on s Rich Millpond R sR File d Rd i 8198 8197 202 Map Created 2/20/2012 Severe and High Priority Potential Barriers by Town Site ID 8967 8695 8696 9091 8157 8714 8011 8707 8709 8874 8733 8666 8703 8472 9082 8723 9080 9434 8269 D0374 9169 D0390 D0419 9089 9259 D0356 9095 Town Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Standish Habitat Priority High High High High High High High High High High High High High High High High High High High High High High High High Basic Structure Type Culvert Culvert Culvert Culvert Multiple Culverts Multiple Culverts Unknown Culvert Culvert Multiple Culverts Culvert Multiple Culverts Culvert Culvert Culvert Culvert Multiple Culverts Multiple Culverts Culvert Dam Unknown Dam Dam Bridge Culvert Dam Culvert Barrier Class Potential Severe Potential Severe Potential Potential Potential Potential Severe Potential Potential Severe Severe Potential Severe Potential Severe Severe Severe Severe Potential Severe Potential Severe Severe Severe Severe Survey Date 8/10/2009 8/5/2010 8/5/2010 8/5/2010 8/10/2009 8/5/2010 8/6/2009 8/5/2010 8/5/2010 8/10/2009 8/10/2009 8/6/2010 8/5/2010 8/6/2009 8/6/2010 7/28/2009 8/6/2009 8/6/2009 7/2/2010 8/6/2010 8/6/2010 7/21/2010 7/21/2010 8/6/2009 8/3/2009 Road Name Blake Rd Boundary Rd Boundary Rd Carroll Ave Emery Rd Juniper Ln Lucky's Run Moody Rd Moody Rd Osippee Trail Randall Rd Rt 114 Rt 114 Rte 35 Sebago L. Campground Shaws Mill Rd Unnamed Unnamed Whites Bridge Rd Road Type & Class Town / Paved Town / Paved Town / Paved Private / Paved Town / Paved Private / Driveway Unknown - e911 Town / Unpaved Town / Paved State / Paved Town / Paved State / Paved State / Paved State / Paved Private / Trail Town / Paved Private / Driveway Private / Unpaved Town / Paved NA Private NA NA Private / Trail Private / Trail NA Private / Trail Stream Unnamed Unnamed Unnamed Unnamed N Branch Little River Stickey River No Data Stickey River Unnamed N Branch Little River N Branch Little River Unnamed Unnamed Nason Brook Unnamed N Branch Little River Unnamed Unnamed Unnamed C&O canal No Data Presumpscot River Rich Mill Pond St Unnamed Unnamed unnamed Westcott Brook UTM East 376507 373786 374024 373531 376537 374627 381469 375176 375505 376336 375882 369814 375120 381485 369538 377461 382837 382873 381442 383425 373671 382988 373667 379401 379453 382865 379725 UTM North 4842921 4849045 4848857 4849008 4843436 4845292 4850103 4846852 4845868 4842709 4842578 4855431 4848055 4851216 4854901 4844142 4852996 4853022 4854100 4852632 4849480 4854028 4849485 4849700 4849814 4853019 4848091 Stream Type Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Perennial Number Of Culverts 1 1 1 1 2 2 Material Plastic Plastic Plastic Metal Metal Metal 1 1 3 1 2 1 1 1 1 3 2 1 Metal Plastic Concrete Plastic Metal Metal Concrete Metal Metal Stone Plastic Metal 1 1 Stone Concrete Concrete Metal Condition Rust Rust Severe and High Priority Potential Barriers by Town Site ID 8967 8695 8696 9091 8157 8714 8011 8707 8709 8874 8733 8666 8703 8472 9082 8723 9080 9434 8269 D0374 9169 D0390 D0419 9089 9259 D0356 9095 Specific Structure Type Round Culvert Round Culvert Round Culvert Round Culvert Round Culvert Round Culvert Inlet Condition At Grade At Grade At Grade At Grade At Grade At Grade Round Culvert Round Culvert Round Culvert Round Culvert Round Culvert Round Culvert Round Culvert Round Culvert Pipe Arch Culvert Box Culvert Round Culvert Round Culvert At Grade At Grade At Grade At Grade Perched At Grade At Grade At Grade At Grade At Grade At Grade At Grade Inlet Blocked No No No No No No No No No No No No 25% No 50% No 75% No No Primary Inlet Span FT 4.0 2.9 4.9 4.0 3.9 3.0 Crossing Structure Length FT 40.0 63.0 60.4 60.4 47.2 31.2 Outlet Condition At Grade Perched At Grade Cascade At Grade At Grade 3.9 2.0 2.4 3.9 2.3 2.5 2.0 2.1 8.7 3.3 3.0 2.5 31.8 56.1 52.2 40.7 37.7 80.4 74.8 19.7 59.1 26.9 39.4 47.6 At Grade Perched At Grade At Grade Perched Perched At Grade At Grade At Grade At Grade Perched Perched Outlet Drop FT 0.2 0.2 0.2 2.0 0.6 0.3 Crossing Substrate None None None None None None Comparable None None None None None None None None Comparable None None Fill Height FT 3.3 3.9 0.5 1.3 At Grade At Grade 100% 100% Round Culvert At Grade 100% 2.1 23.0 50.9 At Grade Perched 18.4 At Grade 1.1 Unknown Unknown Comparable 7.9 11.2 5.2 2.3 2.8 5.7 3.3 0.7 1.0 9.1 0.7 26.2 No Bridge w/ Abutments Round Culvert Estimated Stream Width FT 16.6 3.1 6.0 8.9 3.0 4.0 10.3 2.4 4.9 8.0 1.0 2.9 3.4 Upstream Miles to Next Barriers 0.185 0.159 1.748 0.676 0.343 0.937 0.312 1.827 0.314 0.329 0.872 0.522 0.145 0.229 0.528 1.350 0.778 0.005 0.118 1.235 0.003 123.854 6.753 0.267 0.091 0.025 0.165 UpStream Barriers 2 1 0 0 0 0 0 2 0 1 0 1 0 0 0 4 0 2 0 3 1 174 0 0 0 1 0 Total Upstream Miles 1.387 0.836 1.748 0.676 0.343 0.937 0.312 3.078 0.314 1.201 0.872 1.050 0.145 0.229 0.528 3.079 0.778 0.808 0.118 2.044 6.756 333.449 6.753 0.267 0.091 0.804 0.165 Downstream Barriers 6 1 1 2 6 2 9 1 2 7 8 1 1 9 2 5 10 8 1 7 1 0 2 1 1 9 5 Dam Name Hydraulic Height FT Eel Weir Dam 18.0 Sebago Lake Dam Rich Mill Pond Dam 29.0 7.0 Unnamed 0.4
