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Ã ! o 2107-00 3000-00 2104-00 2102-00 2105-00 2000-30 2103-00 3006-00 3004-00 2106-00 3000-12 2201-00 2000-22 3000-02 2000-06 2000-18 1004-04 2201-03 2000-32 2000-14 2000-27 2103-01 2000-19 2107-05 3000-06 2102-01 2107-06 3006-09 2105-02 2103-02 2105-03 3000-09 2000-16 3000-05 2104-03 2107-03 2000-07 2107-01 2000-26 3006-10 3006-13 3005-00 2000-04 2102-02 1004-00 2104-02 2000-34 2000-24 3006-11 2101-01 1004-05 2000-28 2000-21 2106-02 2106-01 2000-23 3000-11 2105-01 3000-08 2000-25 2107-02 3000-07 3005-01 2201-01 2000-11 2000-09 2107-04 2102-03 3006-12 3000-13 2000-33 3000-10 3003-07 2000-10 3006-06 3005-05 2000-20 3002-04 2000-17 2000-03 2000-12 2201-02 3005-06 3000-04 Noank Goshen Jordan Mystic Ridgewood Old Mystic Uncasville Palmertown Lords Point West Mystic Quaker Hill Quaker Hill Gales Ferry Center Groton Pleasure Beach East New London Pleasant Valley Poquonock Bridge Morningside Park Groton Long Point GROTON LEDYARD MONTVILLE Pie Hill Fort Hill Long Hill Ram Point Cow Point Shack Hill Great Hill Sharp Hill Ram Island Great Neck Clam Point Pine Point Dark Hollow Stuart Hill Mullen Hill Pequot Hill Walker Hill Jacobs Rock Bailey Hill Gallup Hill Church Hill Pine Island Hobs Island White Point Bluff Point Avery Point Bushy Point Mason Point Lords Point Sandy Hollow Mallory Hill Twomile Hill Soldier Hill Latimer Hill Baldwin Hill Vinegar Hill Maynard Hill Chapman Hill Mouse Island Gates Island Lyddy Island Mason Island Goshen Point Magonk Point Morgan Point Spence Point Willow Point Bailey Point Point Breeze Lamphere Hill Manitock Hill Hazelnut Hill Mamacoke Hill Mahoneys Hill Crandall Hill Enders Island Dodges Island Twin Brothers Powder Island Seaside Point Mumford Point Jupiter Point Eastern Point Pohegnut Ledge Pepperbox Hill Crooked S Hill Quoketaug Hill Gungywamp Hill Barnville Hill Twotree Island Andrews Island Bartlett Point Sixpenny Island Wamphassuc Neck Stonington Point Wamphassuc Point Haughton Mountain Groton Long Point Noank Dock Ocean Beach DuBois Beach Osprey Beach Pleasure Beach Esker Point Beach Bluff Point Beach Bushy Point Beach Green Harbor Beach Eastern Point Beach Waterford Town Beach Red Brook Lee Brook YMCA Pond Spot Pond Rock Pond Long Pond Long Pond Hyde Pond Edge Pond Mill Cove Long Cove Goss Cove West Cove Shaw Cove Smith Cove Flat Brook Stony Pond Smith Pond Smith Lake Silex Pond Sharp Pond Perry Pond Perry Pond North Lake Lambs Pond Hibbs Pond Haley Pond Brown Pond Beebe Pond Banks Pond Clark Cove Noank Cove Beebe Cove Pine Swamp Stony Brook Sandy Brook Hunts Brook Great Brook Trails Pond Plants Pond Picker Pond Pequot Pond Norman Pond Miller Pond Little Pond Lake George Lake Cuheca Horton Cove Goshen Cove Palmer Cove Wilcox Cove Thames River Thames River Thames River Nevins Brook Mystic River Ledges Brook Jordan Brook Jordan Brook Haleys Brook Haleys Brook Fenger Brook Culver Brook Church Brook Silvias Pond Johnson Pond Alewife Cove Mumford Cove Wheeler Brook Oxoboxo Brook Ed Lamb Brook Whitmans Pond Whitford Pond Sand Pit Pond Rockland Pond Red Mill Pond Bindloss Pond Billings Pond Winthrop Cove Bartlett Cove Mamacoke Cove Williams Cove Bennetts Cove Mystic Harbor Greens Harbor Quiambog Cove Williams Brook Whitford Brook Bindloss Brook Assekonk Brook Moulthrop Pond Manor Inn Pond Lake Brandegee Dye House Pond Arrowhead Pond Quanaduck Cove Tom Allyn Brook Poquonock River Lampheres Brook Hempstead Brook Fort Hill Brook Eccleston Brook Beaverdam Brook Warren Millpond North Road Pond Buddington Pond Venetian Harbor Silex Mine Brook Palmer Reservoir Jordan Mill Pond Groton Reservoir Braman Road Pond Pequotsepos Brook Green Swamp Brook Birch Plain Creek Ledyard Reservoir Lantern Hill Pond Gay Cemetery Pond Collins Road Pond Chesebro Ice Pond New London Harbor Stonington Harbor Silvias Pond Lower Silvias Brook Pond Tom Allyn Brook Dam Poheganut Reservoir Hatching House Brook Billings Avery Brook West Branch Red Brook Copps Brook Pond No 3 Copps Brook Pond No 2 Copps Brook Pond No 1 Fishtown Cemetery Pond Barbers Line Walk Pond East Branch Copps Brook Mystic Oral School Pond Lower Ledyard Reservoir Billings Avery Diversion Dam Red Reef Flat Rock Long Rock Ellis Reef Rapid Rock Shore Rock Whale Rock Black Rock Noyes Rock White Rock Seal Rocks White Rock Vixen Ledge Sarah Ledge Noyes Shoal Frank Ledge Black Ledge Middle Rock Planet Rock Rock Island Melton Ledge Goshen Ledge Bartlett Reef Intrepid Rock Swimming Rock Horseshoe Reef Cormorant Reef Cormorant Rock Whaleback Rock Ram Island Shoal Eel Grass Ground Long Reach Upper Long Reach Lower Quinnipeag Rocks Little Goshen Reef Pine Island Channel Twotree Island Channel Lawrence and Memorial Hospital Noank School Jennings School Williams School Edgerton School Deans Mill School Gallup Hill School Gales Ferry School Montville Alternate Cohanzie Elementary Ledyard High School Mary Morrison School Juliet W Long School Eastern Point School Mystic Middle School Cutler Middle School Ledyard Center School Great Neck Elementary Claude Chester School Charles Barnum School Ledyard Middle School Waterford High School Little Red Schoolhouse Quaker Hill Elementary Pleasant Valley School Colonel Ledyard School West Side Middle School Friendship Magnet School Clark Lane Middle School Winthrop Elementary School Robert Fitch Middle School SB Butler Elementary School Nathan Hale Elementary School Robert Fitch Senior High School Bennie Dover Jackson Middle School Ella T Grasso Southeastern Technical High Mitchell College Connecticut College United States Coast Guard Academy Mystic Station New London Station 100 200 300 400 200 200 300 100 300 100 100 300 300 100 200 300 200 100 200 100 100 100 100 300 300 100 100 100 100 100 300 200 100 200 200 200 200 100 200 100 100 200 100 200 100 300 200 200 100 200 100 100 200 200 100 200 100 100 100 100 100 100 200 200 200 100 200 200 200 200 200 100 200 100 200 100 200 200 300 100 300 100 200 100 200 100 100 200 100 100 100 100 100 200 200 100 300 200 400 300 100 100 100 100 300 100 200 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Hill Rd New London Tpke State Hwy 234 Moxley Rd Long Cove Rd Williams St Mystic Rd Pumpkin Hill Rd North Rd Shore Rd Shewville Road NO 2 Center Groton Rd Cove Rd Colman St Vauxhall Street Ext Whalehead Rd Great Neck Rd Boston Post Rd Route 184 Elm St Noank Rd State Hwy 215 Coleman St Governor John Davis Lodge Tpke Mistuxet Ave Old Norwich Rd Stonington Rd Stoddards Wharf Rd Long Hill Rd New London Rd High St Buddington Rd Poquonnock Rd Sandy Hollow Rd Clark Ln Jefferson Ave Fort Hill Rd Cow Hill Rd Bloomingdale Rd Mohegan Avenue Ext Meridian St Eastern Point Rd Whitford Rd Montauk Ave Jeremy Hill Rd Norwich - New London Rd Rope Ferry Rd Dayton Rd Lambtown Rd Miner Ln Hartford Tpke Brook St Noank Ledyard Rd Jerry Brown Rd Wintechog Hill Rd Bridge St Avery Hill Rd Vauxhall St Frontage Rd Thames St Jerry Browne Rd Fog Plain Rd Willetts Ave Braman Rd Toll Gate Rd Plant St Pequot Ave Gallup Ln Taugwonk Rd Fishtown Rd Vinegar Hill Rd Groton Long Point Rd Hewitt Rd Lathrop Rd Christy Hill Rd Wolf Neck Rd Route 117 Bolles Ln Yetter Rd Tyler Ave Route 1A Indigo St Shore Ave Wahoo Ave Deans Mill Rd Jerome Rd Smith St Briggs St Depot Rd South Rd Quiambog Cove Rd Kitemaug Rd Indiantown Rd Packer Rd Greenmanville Ave Glenwood Ave Shaw St Pleasant Valley Rd B Ln Hunts Brook Rd Town Farm Dr Shennecossett Rd Whitehall Ave Niles Hill Rd Mitchell St Ash Dr Bayonet St US Hwy 1A Armond Rd Pearl St Gilead Rd Crystal Ave Hatch St Clift St Dawley Dr Drozdyk Dr Benham Rd Haley Rd Godfrey Rd Kings Hwy Seabury Ave State Hwy 2 Sharp Hill Rd Goat Pt Huntington St D St Gardner Ave Baker Ave Rainville Ave Mains Xing Quarry Rd Rogers Rd Water St Rowley Dr Judson Ave Thomas Rd Daniels Ln Torrey Park Pequotsepos Rd Ledyard St Pellegrino Rd Eagle Ridge Dr Coogan Blvd Inchcliffe Dr Deer Ridge Rd Dimmock Rd Hickory Ln Collins Rd Marsh Rd Hurlbutt Rd Mystic Ave Burningtree Dr Trumbull Rd Spicer Hill Road NO 1 Lower Blvd Benham Ave Neptune Dr Gary Ct Lamphere Rd Tower Ave Willow St Seneca Dr Pheasant Run Dr Connecticut Ave Cedar Rd Wrights Rd Center Dr Howard St Gungywamp Rd Olive St Yorkshire Dr Pink Row Pilgrim Rd Miner Ave Center Rd Ivy Ct Twin Lakes Dr Lake St Library St Pepperbox Rd Parkway Kenyon Rd Saw Mill Dr Partridge Hollow Rd Montville Connector Wilbur Rd Mary St SD Breeze Ave Noyes Ave Dock Rd Soljer Dr Judson Rd Highland Dr Shewville Road NO 1 Homestead Rd Cider Hill Rd Spicer Hill Rd Norman Dr Church St 4WD Road Greentree Dr Brandegee Ave Harriet Ln Lestertown Rd Ann Ave Bear Dr Barton Ln Brill Ave Monument St Alley Gray Farm Rd Hempstead St Payer Ln Douglas Ln Garfield Ave Squire St River Dr Maritime Dr Meeting House Ln Warner St Virgo Dr Welles Rd Irving St Milton Dr Ashcraft Rd Grove Ave A St Indian Hill Rd Robinhood Dr Viets St Harder Ave Old North Rd Rossie St Wendell Comrie Rd Dubois Rd Avery Ln Clara Dr Allen St Susan Ter Ring Dr Lantern Hill Road NO 2 Hillcrest Dr North St Skiff Ln Newtown Rd Quinley Way Heather Glen Ln Osprey Dr Pine St Baldwin Hill Rd Devonshire Dr Coit St Chapman Ln Pickering Dr Hill St Pelican Dr High Rock Rd Lincoln Dr Ridgewood Ave Strand Hyde Park Dr Neck Rd Chippechaug Trl Chippachaug Trl Goulart Rd Old Mill Rd Starr St Watson Rd Oak Ln Bluff Rd Friar Tuck Dr Prospect St Perry Ave Rogers Hill Rd Yacht Club Rd Crystal Lake Rd Dartmouth Dr Pinelock Dr Colonial Dr Nautilus Dr Monroe St Thresher Ave Shore Dr Put Dr Forest Rd Oslo St Prospect Hill Rd New Shore Rd Cliff Rd Laurel Dr Front St Midway Oval Great Brook Dr Terry Rd Nauyaug Point Rd Roseleah Dr Dunbar Rd Candlewood Rd F St Holmes St Orchard Dr Long Wharf Rd Blackhall St Bel Aire Dr Bobwhite Trl Sable Dr Starr Hill Rd West Dr Walker Hill Rd Beacon Hill Dr Leonard Dr Gravel St Filter Plant Rd Marla Ave Mullen Hill Rd Bay View Ave Mardie Ln Grabner Dr Ridgewood Dr Georgia St Catalpa Rd Crest St Fairview Ave Norman St Daboll Rd Plaza Ct Lower Bartlett Rd Essex St Deerwood Dr Buckeye Rd East St Clipper Dr Sommers Ln Village Dr Lincoln Rd Meryl Ct Deer Ln Fy View Hts Monticello Dr Dogwood Ln Avery St Marcia Dr Tiffany Ave Oakwood Dr Barry Dr Myrock Ave East Dr Corey Rd Wayne Rd Crandall Hill Rd Trout Ave Michelle Ln Richards Grove Rd Fawn Dr Hillside Dr Laurelwood Rd Middlefield St Kidds Way Park St Quaker Farm Rd Jodry St Pond Edge Dr Birch St Pleasant St Litton Ave Ginger Dr Starr Rd Tan Bark Rd Oakridge Rd Garden Dr Long Pond Rd Branford Ave Admiral Dr Albatross Dr Maple Ct Town Beach Rd Spicer Ave Dart St Lee Rd Totoket Rd Faulkner Dr Old Evarts Ln Harvey Ave Circle Dr Tautog Ave Giovanni Dr Millers Pond Rd Mansfield Rd Borodell Ave Bank St Parkwood Dr Erins Way Maple Dr Winthrop Rd Willow Dr Richard Rd Elton Ct Park Ave Ensign Dr Anita Ave Bergman Dr Ibis Ln Ann St Jerome Ave Cormorant Rd Cinderella Ln Spring Valley Rd Paul Revere Rd Trumbull St 8th St Breezy Knls Quaker Town Rd 3rd Ave Quaker Ln Riverview Ave Bibb Dr Poplar Rd Hilltop Rd Evergreen Ave Laurel Crest Dr Clipper Point Rd Colver Ave Cove View Rd Valley St Bruggeman Pl Sandy Hollow Dr George Ave Maple Ter Dubois Dr De Bias Dr Blydenburg Ave Franklin St Highview Ter Sloop Ln Alger Pl Marguy St Peach Tree Hill Ave Merry Ln Point Breeze Rd Forest Ave Hornbeam Rd Central Ave Harris Rd 1st St Holland Ave Hall Ave Maxon Rd Mill St Bristol St Bates Woods Park Rd Pheasant Run Rd Baldwin Dr Stonybrook Rd Bartlett Rd Avery Ct Marlin Dr Oak Lane Ext Addison St Hillside Ave Mystic Hl Crescent St Seabreeze Dr Chestnut Hill Rd Shirley Ln Mayfair Dr Lorenz Industrial Pkwy Wallace St Comstock Ave Mallard Dr Westwood Dr Autumn Way Melanie Ln Noble Ave Charles St Old Farm Rd Rockwood Dr Sunset Rd Old Pequot Trl Azalea Dr Bern Ct Ledge Rd Triton Pl Richmond Ln Cherry Cir Sunrise Rd Chicago Ave York Ct Cottrell St Park Pl Houston Rd Valley Rd Riverbend Dr Marquardt Ln Westomere Ter Round Hill Rd Haley Cres Hemlock Rd Perkins Farm Rd John Ave Rosemary Ln Harger Dr Fowler Ct Larchmont Ter Pennicott Rd Florence Dr Ferry St Griswold Ct Watrous Ave Latham St Tullibee Ave Robin Ln Looking Glass Cir Soundview Rd Clements St Topsail Ln Woodland Dr Brookview Ct Woodland Ln Leary Dr Casino Rd Maginnis Pkwy Brewer St Carter Rd Glenvale St Atlanta Ct Lakeside Dr Cavalla Ct Newport St Summit St Riverside Pl Surrey Ln Golf St Hale Haven Ct Sunshine Rd Harvard Rd Fair Acres Cir Chestnut Ln Sunset Hl Eldane St Cliff St Ray St Garfield Avenue Ext Poggy Bay Ln Trent Ln Alder Ln Edgemont St 12th St Moore Ct Bonnie Cir High Ln Winfield Way Strible Ln Willow Ln Laura Ave Faye St Orchard Pl Teal Dr 4WD Road Cider Hill Rd Pearl St Thames St Pleasant Valley Rd Neck Rd 4WD Road Flanders Rd I 395 Willow Dr Cormorant Rd Route 184 North Rd High St Elm St Coit St Lambtown Rd I 95 Haley Rd US Hwy 1 Stonington Rd Depot Rd Shore Ave Sandy Hollow Rd Hillside Dr Main St Clark Ln Pequot Ave Stonington Rd Parkway Williams St North Rd Main St Montauk Ave Vauxhall St High St Haley Rd Quarry Rd Haley Rd 4WD Road Exit 87 Exit 88 Exit 91 Exit 84E Exit 79 Exit 89 Exit 84N Exit 78 Exit 81 Exit 90 Exit 83 Exit 82 Exit 90 Exit 88 § ¨ ¦ 95 § ¨ ¦ 395 § ¨ ¦ 395 S V 184 S V 214 S V 201 S V 32 S V 349 S V 12 S V 117 S V 2 S V 85 S V 156 Wychwood Field Airport Groton-New London Airport New London High School Harbor Elementary School Regional Multicultural Magnet New London Science and Technology High School 6 4 3 5 7 1 2 2 8 8 EXPLANATION This map shows the location and identification number of major, regional, subregional, and local drainage basins. It is intended to serve as a municipal guide for drainage basin delineation and identification. Local basins make up larger subregional, regional, and major drainage basin areas and are differentiated by their drainage basin boundary type and identification numbers. Arrows on the map represent general direction of surface water flow within local drainage basins. Local outlet direction is shown in purple. Main stem direction is shown in red. Coastal direction is shown in blue. A 7-digit drainage basin number such as 4302-02 uniquely identifies local drainage basin areas shown on this map. Drainage basin areas are numbered sequentially beginning upstream and proceeding downstream. The identification numbers are hierarchical. The first digit (column 1) identifies the major basin, the first two digits (columns 1-2) identify the regional basin, the first 4 digits (columns 1-4) identify the subregional basin, and the first seven digits (columns 1-7) identify the local basin. For example, 4, 43, and 4302 are the major, regional and subregional basin numbers for local basin number 4302-02. As illustrated in the diagram below, this signifies that local basin number 4302-02 is part of subregional basin 4302, which is part of regional basin 43, which is part of major basin 4. Drainage basin boundaries shown on this map were manually delineated by interpreting the 10 foot contour lines and hydrography features shown on USGS 1:24,000-scale topographic quadrangle maps. Only limited field checking was conducted to verify the location of these basin boundaries. Basin boundaries may not be accurate in areas that have been diked for flood control, upland wetland and reservoirs having outlets into two basins, areas where topographic mapping is not up to date, is inaccurate, or is not detailed enough to adequately define local drainage. Residential and commercial development, highway construction, and other changes to the landscape may have resulted in local modifications to the natural drainage pattern since the time these basin boundaries were delineated. The elevation contour lines shown on this map are more accurate than those used to originally delineate the drainage basin boundaries so, in certain areas, the basin boundaries may not exactly reflect the shape of the land surface depicted by the contour lines shown on this map. These contour lines are based on information from a statewide collection of ground elevation LiDAR data for the year 2000. This information is only suitable for general planning and informational purposes. It is not intended for exact determinations of elevation where a survey is normally required, or for detailed engineering, building, or design purposes. With this information, a general sense of the lay of the land can be ascertained. Gentle slopes are characterized by widely spaced contour lines, while steep slopes are represented by closely spaced contour lines. Contour lines that cross streams flowing through valleys of noticeable relief will form a V- shaped deflection with the apex of the V pointing upstream. However, river and stream features and watershed delineations that are based on USGS topographic quadrangle maps at 1:24,000 scale may not align exactly with the terrain of stream valleys and elevation of hills and ridges depicted by these contour lines. Note : The major, regional and subregional drainage basin boundaries shown on this map are the same as those published on the 1:125,000- scale state map entitled Natural Drainage Basins in Connecticut, McElroy, 1981. The basin boundaries shown on this town map were digitized from the 1:24,000-scale compilation sheets used to publish the state map of Natural Drainage Basins in Connecticut, 1981. DATA SOURCES LOCAL DRAINAGE BASIN DATA – The drainage basin information shown on this map is based on the following digital spatial datasets: Connecticut Local Basin Line and Local Basin Poly. These two datasets were developed by CT DEP and depict major, regional, subregional, and local basin drainage areas and boundaries at 1:24,000-scale. These data depict drainage areas for Connecticut rivers, streams, brooks, lakes, reservoirs and ponds published on 1:24,000-scale 7.5 minute topographic quadrangle maps prepared by the USGS between 1969 and 1984. ELEVATION CONTOUR DATA – The elevation contour line information shown on this map was derived from a statewide 10-foot Digital Elevation Model (DEM) surface. The DEM was based on the Connecticut LiDAR dataset for 2000, which captured ground elevation every 20 feet at a horizontal accuracy of approximately 3 feet on the ground. For unknown reasons, data was collected unevenly in some areas, which resulted in data gaps. The University of Connecticut, Center for Land Use Education and Research (CLEAR) created the DEM and edited it to fill in data gaps with information from contour lines on USGS 1:24,000-scale topographic maps. However, some inaccuracies remain and the data should be used within the known limitations of the source data. BASE MAP DATA - Based on data originally from 1:24,000-scale USGS 7.5 minute topographic quadrangle maps published between 1969 and 1992. It includes political boundaries, railroads, airports, hydrography, geographic names and geographic places. Streets and street names are from Tele Atlas ® copyrighted data. Base map information is neither current nor complete. RELATED INFORMATION This map is intended to be printed at its original dimensions in order to maintain the 1:24,000 scale (1 inch = 2000 feet). To identify either all upstream basins draining to or all downstream basins flowing from a particular location, refer to the Gazetteer of Drainage Basin Areas of Connecticut, Nosal, 1977, CT DEP Water Resources Bulletin 15, for the hydrologic sequence, headwater to outfall, of drainage basins. MAPS AND DIGITAL DATA - Visit the CT ECO website for this map and a variety of others in PDF format. Visit the CT DEP website to download the digital spatial data shown on this map. LEGEND Basin Boundary Major Basin Regional Basin Subregional Basin Local Basin Local Drainage Basin Direction t Outlet Direction t Main Stem Direction t Coastal Direction Elevation 100 ft Contour Line 20 ft Contour Line Figure 1. Example showing a typical local drainage basin and the subregional, regional, and major drainage basin it is part of. MAP LOCATION State Plane Coordinate System of 1983, Zone 3526 Lambert Conformal Conic Projection North American Datum of 1983 MAJOR BASINS 1 Pawcatuck 2 Southeast Coast 3 Thames 4 Connecticut 5 South Central Coast 6 Housatonic 7 Southwest Coast 8 Hudson £ NATURAL DRAINAGE BASINS MAJOR, REGIONAL, SUBREGIONAL AND LOCAL GROTON, CONNECTICUT SCALE 1:24,000 (1 inch = 2000 feet) when map is printed at original size (48 x 36 in) STATE OF CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION 79 Elm Street Hartford, CT 06106-5127 Map created by CT DEP May 2011 This map replaces a similar natural drainage basins map dated January 2010 0 2,500 5,000 7,500 10,000 1,250 Feet 0 0.4 0.8 1.2 1.6 2 0.2 Miles 0 0.3 0.6 0.9 1.2 1.5 0.15 Kilometers