Reservoir report

Massachusetts reservoirs & dams

Every documented dam and reservoir in Massachusetts — with normal storage capacity, dam height, max discharge, hazard classification, and drainage area. Sourced from USACE NID and state water-resource agencies.

Dams in Massachusetts
1,327
Total storage
5,681,225ac·ft
High-hazard dams
328
Updated
May 17
Open the Massachusetts reservoir layer on the map Every dam and reservoir filtered to Massachusetts on the interactive map.
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May
17
2026
Reservoir report
Massachusetts has several major reservoirs, including Quabbin Reservoir, Wachusett Reservoir, and Sudbury Reservoir. These reservoirs are fed by various streams, rivers, and creeks, including the Swift River and Ware River for Quabbin Reservoir, and the Nashua River for Wachusett Reservoir. Snowpack and mountain ranges, such as the Berkshires, play a significant role in the hydrology of these reservoirs.

Record levels for these reservoirs have been seen during periods of heavy rain or snowmelt, while drought conditions have caused levels to drop. Seasonal trends typically see reservoir levels peak in the spring and summer months, as snowmelt and rainfall increase, and then gradually decrease in the fall and winter.

Overall, reservoirs and dams play a crucial role in providing water to Massachusetts communities, and proper management of these resources is essential to ensure adequate water supply for both human consumption and the environment.
Massachusetts at a glance

Storage, hazard, and history

How the Massachusetts dam inventory breaks down -- aggregate stats computed across every documented dam in the state.

Hazard classification

  • High328
  • Significant643
  • Low356

USACE downstream-consequence rating, not failure likelihood.

Notable dams

  • Tallest Cobble Mountain Reservoir Dam 245 ft
  • Oldest Forge Pond Dam 1726
  • Total storage All Massachusetts dams 5,681,225 ac·ft

Built by decade

Most U.S. dams were built mid-20th century during the federal water-development era.

Full inventory

Massachusetts dams & reservoirs

Every documented dam in Massachusetts. Sortable by any column; quickly filterable by name. Numeric columns heat-mapped from light to deep based on value. Tap any dam for the full report.

1,327 dams
Name Year built Normal storage Dam height Max discharge Hazard Drainage area
Sunset Lake Dam 1900 1,800 12 · Low 8
Lower Naukeag Lake Dam 1900 830 12 · High 11
Upper Naukeag Lake Dam 1875 650 8 · Significant 2
Lake Watatic Dam 1955 820 20 · Significant 6
Lake Ellis Dam 1852 310 13 · Significant 4
Factory Village Pond Dam · 47 23 · Significant 5
Winnekeag Lake Dam 1878 527 21 · High 2
Marble Pond Dam 1985 53 10 · Low 2
Stodge Meadow Pond Dam 1863 629 15 · Low 1
Lake Wampanoag Dam · 1,420 22 · High 4
Newton Reservoir Dam 1903 177 30 · Low 1
Lake Rohunta Dam 1943 1,555 24 · Low 20
Sportsmans Pond Dam 1898 465 12 · Significant 1
Riceville Pond Dam 1950 560 13 · Low 6
Nemasket Park Dam 1964 112 15 · Significant 57
Onota Lake Dam 1995 3,300 18 · High 10
Richmond Pond Dam · 2,340 15 · Significant 8
Lower Root Reservoir 1891 230 34 · High 1
Upper Root Reservoir 1960 280 36 · High 1
Echo Lake Dam · 220 10 · Low 1
Glendale 1906 87 30 9,000 Low 272
Stockbridge Bowl Dam 1880 10,000 19 · High 12
Prospect Lake Dam · 350 6 · Significant 1
Long Pond Dam · 800 16 · Significant 1
Round Pond Dam 1963 450 19 · Low 1
Horseshoe Pond Dam 1926 245 14 · Low 57
Mill Pond Dam 1850 1,000 17 · High 11
Glen Charles Pond Dam · 1,300 19 · Significant 4
Tihonet Pond #1 Dam · 720 16 · Significant 6
Tihonet Pond #2 Dam · 720 26 · Significant 6
White Island Pond Dam · 1,550 11 · Significant 3
Rose Brook Lower Dam 1930 110 15 · Significant 1
Barbieri Pond Dam 1968 110 20 · Low 1
Benedict Pond Dam 1934 111 13 · Low 1
Stevens Lake Dam · 150 9 · Significant 1
Threemile Pond 1968 340 17 · Significant 5
Sherman 1927 5,480 110 87,000 High 236
Pelham Lake Dam 1850 640 14 · Significant 4
Papoose Lake Upper Dam · 50 10 · Significant 1
Mcleod Pond Dam 1900 165 11 · Low 1
Kendall Company No 1 Dam 1831 12 25 · Significant 85
Upper Glen Reservoir Dam · 92 59 · Significant 5
Nelson Mills Pond Dam 1937 179 27 · Significant 3
Grandin Reservoir Dam 1935 86 37 · High 1
Wheeler Pond Dam 1824 135 17 · Low 9
Laurel Lake Dam · 176 9 · Low 1
Moorse Pond Dam · 58 8 · Low 2
Gales Pond Dam · 117 18 · Low 3
Richards Reservoir Upper Dam · 64 9 · Low 1
Sheomet Lake Dam · 174 17 · Low 5
Upper Highland Lake Dam 1872 568 27 · High 1
Upper Highland Lake Dike 1930 568 15 · Significant 1
Damon Pond Dam 1860 255 17 · Low 2
Scout Pond Dam 1937 250 15 · Low 3
Lake Warner Dam 1918 205 17 · Significant 32
Factory Hollow Dam 1895 80 31 · High 17
Hill Reservoir Dam 1934 48 41 · Significant 4
Hawley Reservoir Dam 1890 60 17 · Significant 2
Silver Lake Dam 1878 40 15 · Significant 1
Borden Brook Reservoir Dam 1909 4,540 75 · High 8
Cobble Mountain Reservoir Dam 1933 70,000 245 · High 45
Upper Bemis Pond Dam 1954 18 18 · Low 2
Whiting Street Reservoir Dam 1900 2,005 19 · High 1
Bear Hole Reservoir Dam 1957 450 34 · Significant 6
Stevens Paper Co. Lower Dam 1900 75 30 · Low 83
Stevens Paper Co. Upper Dam 1901 20 26 · Low 78
Wheeler Pond Dam 1956 86 17 · Significant 6
Dean Pond Dam 1933 51 21 · Significant 1
Snow Pond Dam 2002 165 15 · Significant 19
Hardwick Pond Dam · 214 8 · Significant 16
Unquomonk Upper Reservoir Dam 1903 27 27 · Low 1
Mountain Street Reservoir Dam 1905 550 33 · High 1
Atwood Upper Reservoir #2 Dam 1937 1,380 12 · Low 408,000
France Street Dam 1920 44 9 · Low 7,000
South Barre Mill Pond 1981 115 22 17,230 Significant 104
Powder Mill 1908 336 10 7,100 Low 99
Ware River Diversion Dam 1910 375 38 · Significant 99
Barre Reservoir Dam 1932 220 15 · High 4
Gaston Pond Dam 1915 60 12 · Significant 1
Tupperware 1904 58 12 12,750 Low 261
Saw Mill Pond Dam · 23 11 · Significant 4
Lower Sibley Pond Dam · 47 8 · Significant ·
Ashworth Dam · 77 10 · Significant ·
Glen Echo Lake Dam 1956 820 30 · High 3
Putnam Pond Dam 1930 90 12 · Low 0
Little Nugget Lake Dam 2000 61 11 · Significant 3
Jones Pond Dam 1930 60 10 · Low 3,500
Granite Lake Dam 1924 1,010 20 · Significant 8
Coachlace Pond Dam 1846 201 13 · Significant 5
North Village Pond 1914 115 13 2,850 Low 84
Lower Merino Pond Dam 1855 3 22 · High 6
Merino Pond Dam · 620 20 · High 5
Larner Pond Dam 1830 195 20 · Significant 5
Peter Pond Dam · 125 10 · Significant 0
New Pond Dam · 210 18 · Significant 2
Quinebaug River Pond Dam 1919 201 13 8,990 Low 268
Wrights Reservoir Dam 1965 513 18 · High 3
Cowee Pond Dam 1900 220 15 · High 1
Perley Brook Reservoir Dam 1962 730 50 · High 3
Coes Reservoir Dam 1865 672 21 · High 12
Patch Reservoir Dam 1896 120 9 · High 10
Cook's Pond Dam 1920 100 15 · High 7
Salisbury Pond Dam 1953 43 13 · Significant 7
Indian Lake Dam 1920 1,200 17 · Significant 6
Lower Stoneville Pond Dam 1904 400 15 · High 18
Allen Dam 1797 68 15 · Low 20
Assabet 1921 122 13 3,350 Significant 123
Nagog Pond Dam 1909 2,698 15 · Significant 1
Murray Printing Company Dam 1910 2,800 9 · Significant 24
Brookside Mill Dam 1862 0 16 · Significant 38
Stony Brook Dam 1870 61 24 · Significant 26
Westford Depot Dam · 280 12 · Significant 35
Balch Pond Dam · 47 12 · Significant 4
Massapoag Pond Dam · 366 14 · Significant 14
Lake Boon Dam 1847 1,223 7 · Significant 2
Townsend Harbor Dam 1870 116 11 · Significant 61
Quinsigamond Pond Dam 1896 100 12 · Significant 63
Curtis Ponds Dam 1837 220 14 · Significant 33
Leesville Pond Dam 1830 250 15 · Significant 31
Brierly Pond Dam · 97 10 · Significant 4
Singletary Pond Dam · 2,310 17 · Significant 4
Ramshorn Pond Dam 1825 1,600 25 · High 2
Dorothy Pond Dam 1825 800 11 · Significant 4
Bell Pond Dam 1840 54 4 · Significant 0
Green Hill Pond Dam 1881 229 25 · High 0
Parker Mills Pond Dam 1900 350 19 · High 18
Tuxbury Pond Dam · 318 10 · Significant 46
Lake Gardner Dam 1872 1,200 25 · High 50
Fosters Pond Dam · 538 10 · Significant 2
Ballardvale Dam 1838 110 14 · Significant 65
Haskell Pond Dam 1903 1,005 43 · High 1
Dykes Meadow Dam 1981 574 52 · Significant 1
Lily Pond Outlet Dam · 135 8 · Significant 1
Stiles Pond Dam · 490 10 · Significant 1
Howe Pond Dam · 35 11 · Significant 13
Lowe Pond Outlet Dam 1960 130 10 · Low 3
Mill Pond Dam 1875 30 17 · Significant 5
Wallace Pond Dam 1900 78 22 · High 0
Goose Cove Reservoir South Dam 1963 825 20 · High 1
Dow Brook Reservoir Dam 1895 160 20 · Significant 1
Reservoir Pond Dam · 1,000 12 · Significant 6
Bogastow Pond Dam 1900 24 13 · Low 24
Mirimichi Pond Spillway 1926 460 13 · Significant 12
Willett Pond Dam 1913 1,736 25 · High 5
Red Dam 1920 1,046 10 · Significant 7
Langwater Pond Dam · 26 11 · Significant 7
French Pond Dam 1760 29 12 · Significant 2
Meadowbrook Pond Dam 1966 35 7 · Low 3
Hammond Pond Dam · 250 17 · Significant 3
Methuen Falls 1895 210 23 3,905 Significant 74
Bailey Pond Dam 1912 50 15 · Significant 1
Longham Reservoir Dam · 100 15 · Low 4
U.S.M.C. Pond Upper Dam 1904 38 17 · Significant 2
Fernwood Lake North Dam 1877 225 16 · High 0
Upper Banjo Pond Dam 1908 55 17 · High 1
West Pond Outlet Dam 1872 30 13 · Significant 0
Babson Reservoir Dam 1930 635 44 · High 2
Johnson Creek Dam 1913 55 16 · Significant 5
Upper Artichoke Reservoir Dam 1920 800 15 · Low 5
Sidneys Pond Dam · 70 9 · Significant 2
Fountain Pond Dam 1900 83 13 · High 2
Spring Pond Dam · 1,000 15 · High 0
Carlson Quarry Reservoir Dam 1953 282 28 · Low 0
Erikson Dam 1848 50 17 · Significant 20
Upper Stoneville Reservoir Dam · 430 27 · High 3
Pondville Pond Dam 1875 158 15 · Significant 7
Dark Brook Reservoir Dam 1950 2,597 17 · High 3
Gilboa Pond Dam 1900 150 14 · Low 31
Whitin Reservoir Dam 1854 3,200 33 · High 9
Buckley-Dunton Lake Dam 1965 870 22 · High 2
Chimney Corners Pond Dam 1961 135 28 · Significant 1
Greenwater Pond Dam 1944 1,750 18 · Significant 2
Palmer Brook Dam 1968 1,492 34 · High 2
Robin Hood Lake Dam 2013 362 17 · Significant 2
Rudd Pond Dam And Dike 1920 350 12 · Low 1
Yokum Pond Dam · 285 9 · Significant 1
Center Pond Dam · 375 9 · Significant 1
Crystal Pond Dam 1964 60 19 · Significant 0
Cheshire Reservoir Dam 1870 2,550 14 · Significant 16
Bassett Brook Reservoir Dam 1967 9 29 · Significant 3
White Pond Dam 1963 396 14 · Low 4
South Athol Pond Dam · 310 11 · Significant 10
Perryville Pond Dam 1870 90 13 · Significant 2
Stocking Mill Dam · 19 8 · Significant 1
Sylvestri Pond Dam · 76 7 · Significant 1
Carpenter Pond Dam · 28 8 · Significant 1
Byron Weston Dam No. 1 1875 125 28 · Significant 53
Ashmere Lake Dam 1875 2,076 34 · High 4
Belmont Reservoir Dam 1889 90 29 · High 0
Cleveland Brook Reservoir Dam 1949 4,900 71 · High 2
Plunkett Reservoir Dam 1875 1,090 27 · High 3
Upper Sackett Reservoir Dam 1947 475 76 · High 1
Millvale Reservoir Dam 1898 384 18 · High 8
Bull Brook Reservoir Dam 1988 85 11 · Low 2
Ipswich Mills Dam 1900 200 11 · Low 150
Stevens Pond Outlet Dam 1877 60 19 · High 75
Great Stone 1848 19,900 38 128,000 Low 4,460
Walden Pond East End Dam 1905 4,100 8 · High 2
Sluice Pond Dam 1900 210 12 · Low 2
Birch Pond Dam 1873 800 25 · High 1
Breeds Pond Outlet Dam #5 1870 5,200 44 · High 1
Pillings Pond Dam · 330 6 · Significant 2
Parker River Dam #1 1975 75 9 · Low 25
Lower Millpond Dam 1900 40 11 · Low 6
Hawkes Pond Outlet Dam 1895 850 26 · High 2
Walden Pond Outlet Dam 1890 5,400 43 · High 2
Wallis Pond Dam 1900 25 8 · Low 4
Steadman Pond Dam 1921 36 17 · Low 0
Lake Garfield Dam 1973 936 20 · High 4
Rising Paper Company Dam 1993 195 40 · Significant 279
Plantain Pond Dam 1947 300 15 · Significant 1
Harnett Pond Dam 1909 138 14 · Low 1
Cookson Pond Dam 1959 587 24 · Significant ·
York Lake Dam 1934 296 23 · Significant 1
Thousand Acre Lake Dam 1960 750 33 · High 5
Windemere Lake Dam 1973 580 40 · Low 2
Berkshire Trout Pond 1946 50 9 · Low 0
Mill Pond Dam · 760 19 · Significant 26
Columbia Mill Dam 1901 90 25 · Significant 184
Pentucket Pond Outlet Dam · 210 9 · Significant 8
Hurlbut Dam 1872 50 24 · Significant 243
Laurel Lake Dam · 680 12 · High 3
Lower Artichoke Reservoir Dam 1920 130 10 · Low 6
Leahey (Upper) Reservoir Dam And Dike 1964 740 57 · High 1
Emerson Brook Dam 1951 600 15 · Low 4
John Leo Silver Lake Dam · 75 13 · Significant 0
John A. W. Pearce Lake Dam · 55 11 · Significant 0
Mile Brook Dam 1920 50 10 · Low 1
Lake Cochichewick Outlet Dam 1865 6,300 13 · High 5
Eclipse Dam 1960 60 52 · High 42
Windsor Lake Dam 1883 170 27 · High 0
Mount Williams Reservoir Dam · 668 40 · High 1
Notch Reservoir Dam 1897 218 60 · High 2
Watson Pond · 270 8 · Low 1
White Lily Pond Dam 1965 220 11 · Low 1
Hayes Pond Dam 1840 254 12 · Low 1
Morley Swamp Dam 1860 38 9 · Low 0
West Lake Dam 1967 480 25 · High 1
Hayden Pond Dam 1886 120 13 · Significant 14
Lower Spectacle Pond Dam · 280 11 · Low 3
Garnet Lake Dam 1964 117 14 · Low 0
Griswold Pond Dam 1918 51 12 · Significant 0
Stony Brook Reservoir Dam 1887 1,312 32 · High 24
Guilder Pond Dam 1960 75 17 · Low 1
Middleton Pond Outlet Dam 1900 900 11 · Low 3
Fulling Mill Pond Dam · 42 8 · Significant 0
Cushing Pond Dam 1956 95 10 · Significant 3
Triphammer Pond Dam 1940 61 5 · Low 5
Atwater Pond Dam 1890 110 12 · Low 1
Camp Woodcrest Dam 1927 103 18 · Low 1
Pelton Reservoir Dam 1954 117 16 · Low 0
Upper Spectacle Pond Dam 1935 310 23 · Low 2
Abbey Lake Dam 1967 154 40 · High 2
Otis Woodlands Club Dam · 140 22 · Significant 3
North Silver Lake Dam 1970 179 76 · High 4
Otis Reservoir Dam 2012 22,000 32 · High 16
Pontoosuc Lake Dam 1866 2,650 19 · High 22
Bog Pond Dam 1937 170 14 · Low 1
Burnett Pond Dam 1930 65 15 · Low 1
Goose Pond Dam 1840 3,132 28 · High 4
Ashley Lake Reservoir 1902 1,100 22 · High 1
Farnham Reservoir Dam 1910 1,455 105 · High 3
Felton Lake Dam 1937 60 15 · Low 1
Sandwash Reservoir Dam 1936 804 41 · High 2
Washington Mountain Lake Dam 1972 1 28 · High 1
Wards Pond Dam · 71 20 · Significant 2
Lost Wilderness Lake Southern Dam 1975 1,200 23 · Significant 1
Camp Kinderland Dam 1950 56 11 · Low 0
Trout Pond Dam 1920 202 11 · Low ·
Chamonix Chalet Dam 1966 695 24 · Low 1
Jenkins Pond Dam · 60 13 · Significant 55
Muddy Pond Dam 1900 264 8 · Low 1
Ashby Reservoir Dam 1918 198 28 · Significant 2
Fitchburg Reservoir North Dam 1900 2,018 25 · Low 2
Fitchburg Reservoir S.E. Dam 1900 2,018 20 · Low 2
Framingham #1 Reservoir 1878 600 22 · High 75
Framingham #2 Reservoir 1878 980 27 · High 440
Framingham Reservoir #3 Dam 1880 3,300 29 · High 28
Central Street Dam 1900 400 24 · High 86
Charles River Dam At South Natick 1934 220 15 · High 165
Silk Mill Dam 1912 20 20 · Low 211
Newton Lower Falls Dam · 24 9 · Significant 217
Moody Street Dam 1847 2,100 22 · High 251
Island Grove Pond Dam · 95 12 · Significant 3
Ames Pond Dam 1992 460 15 · Significant 4
Hunts Pond Dam 1920 15 10 · Significant 5
Magoun Pond Dam 1991 23 16 · Significant 1
Double Brook Dam 1920 18 10 · Low 5
Woods Pond Dam · 102 7 · Significant 1
Waterville Pond Dam 1920 118 16 · Significant 1
Jacobs Pond Dam 1730 110 11 · Significant 1
Leonards Pond Dam · 135 15 · Significant 9
Pepperell Paper 1918 4,530 24 · Low 316
East Head Pond Dam 1900 280 11 · Low 0
Tremont Street Dam · 28 12 · Significant 5
Holmes Street Dam 1900 85 12 · Low 5,040
Hartley Saw Mill Pond Dam 1920 0 10 · Significant 2
Freeman Bog Dam 1900 21 12 · Low 8
Wampatuck Pond Dam 1695 108 12 · Significant 3
Factory Pond Dam 1943 200 11 · Significant 23
Russell Mill Pond 1898 300 25 0 Low 3
Sylvia Place Pond Dam · 40 20 · Significant 1
Foundry Pond Dam 1848 70 25 · Significant 2
Elm Street Dam 1886 15 11 · Significant 20
Kelleher Dam 1945 64 18 · Low 3
Wright Reservoir Dam 1900 121 11 · Low 3
Pine Lake Dam 1900 70 7 · Low 2,000
Mill Pond Dam · 25 10 · Significant 2
Boys & Girls Camp #1 Dam · 17 16 · Significant 2
Carver's Pond Dam · 75 7 · Significant 2
Thirty Acre Pond Dam 1936 125 13 · High 4
Lower Porter Pond Dam 1940 24 9 · Significant 4
Upper Porter Pond Dam 1940 28 11 · Significant 3
Waldo Lake Dam 1936 284 18 · High 3
Forge Pond Dam 1726 25 12 · Significant 8
Curtis Crossing Dam 1908 46 12 · Low 30
Forge Pond Dam 1900 55 9 · Low 20
Accord Pond Dam · 845 10 · Significant 1
Reed Mill Pond Dam · 16 10 · Significant 3
Silver Lake Dam 1908 15,306 8 · Low ·
Bound Brook Pond Dam 1900 75 7 · Low 2
Mill Pond Dam 1988 85 14 · High 34
Hopkinton Reservoir Dam 1891 4,500 58 · High 6
Hopkinton State Park Swimming Pool Dam 1967 71 17 · High 0
Ashland Reservoir Dam 1900 4,290 59 · High 6
Warners Pond Dam · 270 9 · Significant 47
Squannacook River Dam · 75 18 · High 1
Hollingsworth & Vose Co. Dam 1900 156 17 · Low 68
Houghton Pond Dam 1898 55 10 · High 3
Whitehall Reservoir Dam 2002 1,940 8 · Significant 5
Echo Lake Dam 1898 1,856 41 · High 1
Washington Street Dam 1956 70 16 · Significant 64
Main Street Dam · 88 18 · High 7
Fort Meadow Reservoir Dam 1848 4,000 30 · High 3
Millham Reservoir Dam 1893 560 26 · Significant 4
Williams Lake Dam 1882 576 11 · High 0
Hager Pond Dam · 250 13 · High 2
South Reservoir Dam 1882 1,350 45 · High 1
Wrights Pond Dam · 170 27 · High 0
Lake Shirley Dam 1857 2,969 21 · High 14
Watertown Dam · 20 10 · Significant 273
North Reservoir Dam 1874 712 25 · High 1
Wheeler Pond Dam · 28 11 · Significant 15
Deerfield No. 4 1912 1,067 48 19,100 Low 404
Deerfield No. 4 - Forebay 1912 1,067 20 0 Low 404
Deerfield No. 3 1912 551 12 23,300 Low 500
Deerfield No. 3 - Forebay 1912 551 23 0 Low 500
Shelburne Falls Fire District Reservoir Dam 1926 42 28 · Significant 1
Conway Electric Dam 1898 5 77 · Low 26
Deerfield No. 2 1913 1,830 76 31,200 Low 508
Hallockville Pond Dam · 70 15 · Significant 2
Jenkins Pond Dam Canal Structure · 60 13 · Significant 40
Robbins Reservoir Dam 1900 275 9 · Low ·
Robbins Reservoir Dam At Rt. #106 1968 330 12 · Significant 13
Burrage Pond-Lower Reservoir Dike A 1923 119 8 · Low 2
Burrage Pond Upper Reservoir Dam · 825 7 · Significant 1
First Herring Brook Reservoir Dam 1969 500 22 · High 5
Garside Reservoir Dam · 34 5 · Significant 0
Petersons Saw Mill Pond Dam · 33 14 · Significant 1
Boys & Girls Camp #3 Dam · 31 9 · Significant 1
Epstein Pond Dam 1968 42 18 · Low 1
Knights Pond Dam · 270 19 · Significant 2
Lower Mill Pond Dam · 248 24 · Significant 12
Cottage Street Dam 1957 305 25 · High 10
Forge Pond Dam · 380 14 · Significant 14
Forge Pond Dike 1978 320 11 · Significant 14
Aldrich Lake Dam 1934 377 34 · Significant 24
Quenneville Dam 1950 67 16 · Low 24
D.F. Riley Grist Mill Dam 1881 290 19 · Significant 48
Virginia Lake Shore Dam 1900 50 17 · Low 4
Rocky Hill Pond Dam 1924 25 26 · Low 1
Fitzgerald Dam 1965 294 22 · Low 1
Searle Pond 1962 49 8 1,400 Low 1
Tighe Carmody Reservoir Dam 1955 20,530 130 · High 14
Lyman Mill Pond Dam 1900 20 14 · Significant 27
New Home 1936 530 9 11,250 Low 375
Lake Mattawa Dam South Dam · 438 10 · Significant 2
Lake Mattawa North Dam · 438 15 · Significant 2
Whites Pond Dam 1940 116 10 · Low 0
Tully Pond Dam 1973 380 20 · Significant 1
Packard Pond Dam · 860 25 · Significant 0
Atkins Reservoir Dam 1930 615 33 · High 0
Atkins Reservoir Dike 1932 615 11 · Low 0
Lake Wyola Dam 2009 815 12 · High 7
Dudleyville Pond Dam 1950 3 17 · Significant 1
Whitmore Pond Dam 1967 15 13 · Significant 1
Mcavoy Pond Dam 1956 75 12 · Significant 3
Bowen's Pond Dam 1900 110 8 · Low 28
Stillwater Dam · 70 17 · Significant 1
Fiske Pond Dam 1900 40 10 · Low 1
West Whately Reservoir Dam 1903 42 23 · High 6
Francis P. Ryan Dam 1970 2,460 80 · High 4
South Deerfield Water Supply Dam 1953 23 30 · Significant 5
Ashfield Pond Dam 1897 306 15 · High 1
Provin Mountain Reservoir 1958 170 30 · High ·
Woodman Pond Dam 1930 35 15 · Low 1
Mountain Lake Dam 1923 0 32 · High 2
Lower Bemis Pond Dam 1862 9 33 · Significant 1
Lake George Dam · 350 11 · Significant 1
Hamilton Reservoir Dam 1960 1,918 17 · High 18
Lake Bray Dam 2002 42 13 · Significant 2
Vinica Pond 1950 36 13 · Low 1
Mclean Reservoir Dam 1903 1,118 35 · Significant 0
Clear Pond Dam 1900 63 22 · Low 1
Clear Pond West Dike 1900 125 19 · Low ·
Ashley Pond Dam 1897 2,448 11 · Significant 3
Longmeadow Country Club Dam 1890 12 18 · Significant 2
Ludlow Reservoir Dam 1877 5,500 29 · High 21
Cherry Valley Dam 1877 5,500 42 · High 23
Harris Pond Dam · 56 10 · Significant 9
Zero Manufacturing Company Dam 1900 70 18 · Significant 15
Pulpit Rock Pond Dam And Aux. Spillway · 212 20 · Significant 7
Lunden Dam 1958 21 10 · Significant 0
Palmer Upper Reservoir Dam 1930 96 25 · Significant 0
Thompson Lake Dam 1900 260 13 · Low 1
Bondsville Upper Dam · 460 28 · Significant 195
Bondsville Lower Dam 1975 30 16 · Significant 195
Diamond International Corp Upper Dam 1876 300 23 · Significant 214
Diamond International Corp Lower Dam 1872 20 19 · Low 215
Norcross Pond #2 Dam 1953 43 19 · Low 2
Norcross Pond #3 Dam 1953 54 16 · Low 2
Porter Lake Dam 1919 180 24 · Significant 6
Watershops Pond Dam 1824 1,730 33 · High 32
Breckwood Pond Dam · 7 23 · Significant 13
Lower Van Horn Reservoir Dam 1848 15 41 · High 1
Upper Van Horn Reservoir Dam 1957 62 32 · Significant 0
Mill Pond Dam 1892 48 17 · Low 10
Fisherville Pond Dam 1882 250 13 · High 134
Blackstone River Dam · 29 12 · Significant 93
Lake Ripple Dam 1982 300 15 · Significant 35
Irish Dam · 950 13 · Significant 24
Pratts Pond Dam · 20 12 · High 5
Silver Lake Dam · 123 16 · Significant 5
Mt. Holyoke College Upper Pond Dam · 41 24 · High 19
Mt. Holyoke College Lower Pond Dam 1900 41 24 · High 19
Marcalus Manufacturing Company Dam · 11 27 · High 20
Leaping Well Reservoir Dam 1890 92 29 · High 0
Quabbin Winsor Dam 1939 1,265,200 170 · High 187
Quabbin Spillway 1938 1,265,200 10 · Low 187
Quabbin Goodnough Dike 1938 1,265,000 135 · High 186
Peppers Mill Pond Dam 1953 55 7 · Low 2
Beaver Lake Dam 1910 930 17 · Significant 5
Juda Dam 1962 24 16 · Low 0
Ware Upper 1890 210 34 2,500 Low 167
Pine Island Lake Dam 1920 839 25 · High 1
Pine Island Lake Dike 1920 645 15 · Significant 1
Factory Hollow Dike · 25 5 · Significant 17
Lower Highland Lake Dam 1852 1,020 29 · High 2
Hillside Beach Dam · 15 21 · High 1
Chapin Pond 1900 154 15 · Low 4
Arm Brook Pl-566 Flood Control Dam 1963 141 58 · High 4
Powdermill Brook Pl-566 Flood Control Dam 1962 6 48 · High 4
White Reservoir Dam 1912 0 51 · Significant 4
Lithia Springs Reservoir Dam 1948 150 26 · Low 1
West Parish Filter #1 Dam 1925 9 28 · Significant 1
West Parish Filter #2 Dam 1910 35 30 · Significant 1
West Parish Filter #3 Dam 1910 121 39 · High 0
West Springfield 1840 200 18 58,300 Low 512
Springfield Country Club Dam 2000 48 15 · Significant 1
Church Manufacturing Co. Dam 1900 80 14 · Low 22
Russell Pond Dam · 420 10 · Significant 1
Wheelwright Pond Dam · 150 17 · Low 6
Pine Brook Dam 1950 50 7 · Low 2
Patrill Hollow Pond Dam 1920 21 13 · Low 9
Holden Reservoir Dam #2 1900 758 66 · High 5
Unionville Pond Dam 1909 100 21 · Significant 6
Chaffin Pond Dam 1894 170 10 · Significant 4
Kendall Reservoir Dam 1911 2,850 39 · High 2
Pine Hill Reservoir Dam 1924 9,398 70 · High 7
Hopedale Pond Dam · 450 19 · Significant 10
Mill Pond Dam · 120 13 · Significant 7
Fiske Mill Pond Dam 1900 56 15 · Low ·
Lake Maspenock Dam 1901 800 18 · High 3
Cedar Swamp Pond Dam 1939 400 8 · Significant 9
Louisa Lake Dam 1980 36 13 · Significant 4
Whites Mill Pond Dam 1923 148 13 · High 1
Lake Monomonac Dam 2005 1,880 16 · High 19
Whitney Pond Dam 1880 410 27 · High 52
Hunts Pond 1936 120 15 4,900 Low 54
Stoddard Pond Dam 1920 92 8 · Significant 3
Round Meadow Pond Dam 1951 126 11 · Significant 5
Crocker Pond Dam 1933 1,027 39 13,000 High 21
Westminster Reservoir Dam 1909 870 31 · High 12
Greenwood Pond Dam · 87 8 · Significant 0
Wyman Pond Compensating Reservoir Dam 1892 1,186 25 · High 8
Wachusett Lake Dam 1905 187 4 · Significant 2
Noyes Pond Dam 1920 142 16 · Significant 1
Crocker Fish Pond Dam 1900 28 12 · Low 1
Crow Hills Pond Dam 1937 27 16 · Significant 0
Lovewell Pond Dam 1900 480 12 · Low 2
Bents Pond Dam 1900 72 13 · Low 1,900
Queen Lake Dam 1824 927 7 · Significant 1
Bates Power Reservoir Dam 1923 100 9 · Significant 1
Connor Pond Dam 1968 75 11 · Significant 22
Brown Pond 1900 68 19 · Low 8
Carter Pond Dam 1924 126 10 · Significant 2
Harvard Pond Dam · 280 8 · Significant 3
Partridgeville Pond Dam 1938 108 20 · Significant 5
Baldwin Water Supply Dam · 56 9 · Significant 0
Betty Pond Dam · 40 9 · Low 1
Wetmore Pond Dam · 67 16 · Significant 1
Swans Pond Dam 1848 110 12 · Significant 3
Upper Tucker Pond South Dam · 162 22 · Significant 3
Brigham Pond Dam 1872 425 15 · Significant 12
Williamsville Pond Dam · 110 11 · Low 11
Williamsville Pond Dam · 480 17 · Low 11
Bems Pond Dam 1900 64 9 · Low 2,100
Cross Pond Dam 1900 28 9 · Low 1,400
Wildwood Lake Dam 1963 190 23 · Significant 8
Old Grist Mill Pond Dam 1953 45 19 · Significant 4
Lowes Pond Dam · 96 15 · Significant 8
Robinson Pond Dam 1838 600 15 · Significant 1
Stump Pond Dam · 80 8 · Significant 2
Hycrest Farm Pond Dam 1949 450 11 · Significant 1
Chimney Pond Dam 1900 31 18 · High 1
Eames Mill Pond Dam 1747 290 15 · Significant 3
Kettle Brook Reservoir #4 Dam 1905 1,681 36 · High 2
Streeter Pond Dam 1920 101 12 · Low 1,500
Asnebumskit Pond Dam 1950 405 11 · Low 0
Old Mill Pond Dam 1968 84 15 · Significant 3
Rawson Hill Brook Dam 1963 0 16 · Significant 1
Newton Pond Dam 2013 260 12 · Significant 4
Cedar Pond Dam 1958 915 9 · Significant 3
Wallace Pond Dam 1950 76 15 · Low 1
Alum Pond Dam · 1,333 9 · Significant 1
Diversion Dam · 26 16 · Significant 136
Russell Harrington Mill Pond Dam 1955 50 20 · Significant 106
Southbridge Reservoir #3 Dam 1894 261 24 · Significant 2
Southbridge Reservoir #4 Dam 1906 660 18 · Significant 2
Southbridge Reservoir #5 Dam 1938 491 33 · Significant 1
Cohasse Brook Reservoir Dam 1967 830 60 · High 2
Browning Pond Dam · 176 8 · Significant 5
Brooks Pond Dam 1939 284 16 · Low 13
Thompson Pond Dam · 791 25 · Significant 9
Sugden Reservoir Dam 1882 980 34 · High 6
Lake Whittemore Dam · 202 18 · High 1
Cranberry Meadow Pond Dam 1939 380 11 · Significant 1
South Silver Dam 1967 17 31 · High 1
Phelon Pond Dam 1940 30 18 · Low 6,700
Cooley Lake · 390 11 · Significant 1
Granville Reservoir Dam 1930 1,660 85 · High 5
Springfield Water Works Intake Dam 1909 167 59 · Low 48
Mill Pond Dam 2009 32 11 · Significant 10
Shaker Mill Pond Dam 2006 30 15 · Significant 1
Long Pond Dam 2006 480 8 · Significant 1
Chicopee 1898 310 9 24,800 Low 714
Chicopee Reservoir Dam 1927 322 47 · High 4
Dwight 1860 200 24 21,000 Significant 718
Indian Orchard 1846 800 30 71,000 High 689
Red Bridge 1901 3,200 51 56,500 High 664
Alden Street Dike 1940 3,200 13 0 Low 664
Railroad Dike 1901 3,200 10 0 Low 664
Putts Bridge 1918 715 22 21,000 Low 686
Winona Pond Dam 1971 1,280 23 · High 1
Boulder Hill Pond Dam · 17 16 · Significant 1
Woods Pond Dam 1991 460 18 · Significant 170
Shaker Mill Pond Dam 2000 119 18 · High 33
Westfield Sportsmen Club Dam 1955 14 10 · Significant 1
Westfield Reservoir Dam 1874 450 41 · High 3
Russell 1905 620 30 52,250 Low 331
Woronoco - South Dam 1938 1,830 25 10,500 Low 346
Woronoco - North Dam 1938 1,830 25 10,500 Low 346
Little River Dam · 11 12 · Significant 28
Lake Cochituate Dam 1920 1,536 14 · High 24
Sudbury Reservoir Dam 1899 22,260 77 · High 22
Carding Mill Pond Dam 1930 150 17 · Significant 4
Putnamville Reservoir West Dike 1954 6,800 26 · High 1
Putnamville Reservoir Dam 1954 7,100 37 · High 1
Mason Road Dam 1870 6 11 · Low 43
Farrar Pond Dam 1920 380 9 · Low 2
Bristol Blake State Reservoir Dam 1961 22 15 · Significant 3
Cambridge Reservoir Dam 1897 7,360 31 · High 7
Ben Smith Dam 1870 760 9 · Low 115
Roberts Meadow Lower Reservoir Dam 1875 13 23 · High 11
Paradise Pond Dam · 150 29 · High 54
Cooks Dam · 48 32 · Significant 48
Manhan River Dam 1998 30 16 · Significant 69
Chartpak Dam · 6 31 · Significant 40
Vistron Dam · 11 25 · Significant 51
Roberts Meadow Middle Reservoir Dam 1894 330 42 · High 11
Stony Brook Dam · 25 15 · Significant 42
Studleys Pond Dam · 105 15 · Significant 4
Big Bearhole Pond Dam 1920 290 18 · High 1
Tremont Mill Pond 1845 200 15 1,555 High 53
Swansea Print Works Dam 1900 25 15 · Low 3
Upper Mystic Lake Dam 2009 1,300 16 · Significant 28
Arlington Reservoir Dam 1872 196 14 · High 2
High Hill Reservoir Dam 1898 205 25 · Significant ·
Talbot Mills Dam 1828 110 16 · Significant 370
Whitmans Pond Dam 1970 550 15 · High 13
Weymouth Great Pond Dam 1884 2,000 9 · Significant 3
New Pond Dam 1810 119 14 · Significant 5
Norumbega Reservoir Dam No. 1 1940 250 42 · High 0
Schencks Pond Dam 1940 66 22 · High 0
Morse Pond Dam 1920 80 9 · High 10
Brockton Reservoir Dam 1885 890 17 · Significant 3
Shad Factory Pond Dam 1911 120 15 · Significant 27
Box Pond Dam 1800 91 9 · Low 15
West Medway Dam 1850 51 11 · Low 20
Somerset Reservoir Dam 1965 2,324 48 · High 2
Muddy Cove Pond Dam 1950 164 32 · High 3
Warren Upper Reservoir Dam 1911 690 19 · Significant 4
Swansea Reservoir Dam 1883 280 13 · Low 5
Milford Pond Dam 1900 123 13 · Low 11
Weston Reservoir Dam · 750 45 · High 1
Highland Lake Dam 1830 125 20 · Low 10
Monument Pond Dam 1900 24 10 · High 21
Terry Brook Reservoir Dam · 80 26 · High 2
Plimpton Pond Dam 1925 34 19 · Low 800
Bird Pond Dam 1906 113 19 · High 25
Ellis Pond Dam 1998 68 17 · High 8
Forge Pond Dam 1949 49 11 · Significant 27
Bolivar Pond Dam 2006 120 12 · Significant 10
Lost Lake Dam 1910 1,500 10 · High 5
Ice House 1906 965 12 7,200 Low 304
Upper Flannagan Pond Dam 1955 75 9 · Significant 1
Prospect Hill Reservoir Dam 1956 70 54 · Significant 0
Kings Pond Dam 2005 60 13 · Significant 5
Chartley Pond Dam 1696 451 12 · High 6
Norton Reservoir Dam · 3,600 17 · High 20
Crackrock Pond Dam 1737 34 14 · Significant 2
Cocassett Lake Dam 1886 180 16 · Significant 3
City Mills Pond Dam 1935 66 30 · Significant 11
Assabet River Dam 1924 29 15 · Low 76
Bare Hill Pond Dam 1837 3,292 9 · Significant 4
Great Pond Upper Reservoir Dam 1942 1,855 18 · High 5
Pine Tree Brook Pl-566 Flood Control Dam 1971 275 21 · Significant 5
Blue Hills Reservoir Dam 1950 138 36 · High 0
Braintree Dam 2003 300 37 · High 1
Great Pond Dam 1940 2,122 10 · High 6
Fletcher Pond Dam 1950 375 24 · Significant 0
Locust Pond Dam 1949 72 14 · Significant 2
Cow Pond Brook Dam · 119 13 · Significant 10
Pawtucket Dam 1848 4,500 16 573,000 Low 3,979
Guard Lock & Gates 1848 4,500 28 0 High 3,979
Northern Canal Gatehouse 1848 4,500 20 573,000 Low 3,979
Great River Wall (Grw) 1848 4,500 32 0 Low 3,979
Swamp Locks 1823 4,500 15 4,400 Low ·
Hamilton Waste Gates 1848 4,500 12 0 Low ·
Tremont Waste Gates 1848 4,500 12 0 Low ·
Merrimack Dam 1847 4,500 8 440 Low ·
Merrimack Waste Gate 1848 4,500 15 · Low ·
Rolling 1835 4,500 18 226 Low ·
Hall Street 1831 4,500 15 1,350 Low ·
Lawrence Street 1831 4,500 12 1,654 Low ·
Lower Pawtucket Locks 1822 4,500 19 3,400 Low ·
East Canal Syphon Spillway 1923 4,500 19 500 Low ·
Mass. Bayboard - Stanchion 1848 4,500 15 0 Low ·
Boott Gate 1835 4,500 10 1,307 Low ·
Beaver Brook Dam · 33 18 · Significant 94
Collinsville Dam 1850 280 22 · Significant 87
Deerfield No. 5 1992 818 32 35,800 Low 237
Deerfield No. 5 - Canal #1 1910 818 39 0 Low 237
Deerfield No. 5 - Canal #2 1910 818 33 0 Low 237
Deerfield No. 5 - Canal #3 1910 818 16 0 Low 237
Deerfield No. 5 - Dunbar 1993 818 29 0 Low 11
Windsor Reservoir Dam 1865 900 51 · High 15
Pecks Lower Pond Dam 1877 15 31 · Significant 11
Williamstown Reservoir Dam 1898 46 31 · High 0
Government Mill Dam 1901 92 18 · Significant 58
Gill 1970 16,600 65 56,000 Low 7,163
Montague 1915 16,600 35 224,000 Low 7,163
Cabot Spillway 1915 16,600 35 16,000 Low 7,163
Turners Falls Dike 1905 16,600 10 40 Low 7,163
Cabot Station 1916 16,600 35 0 Low 7,163
Turners Falls Power Canal - Left Dike 1915 16,600 19 0 High 7,163
Turners Falls Power Canal - Right Dike 1915 16,600 19 0 Low 7,163
Upper Reservoir Dam · 150 12 · Significant 2
Hickory Hills Lake Dam · 2,451 18 · High 8
Crooked Pond Dam 1977 86 14 · Significant 0
Gardners Falls 1904 50 37 65,250 Low 501
Tannery Pond 1936 51 10 3,000 Low 54
Greenwood Lake Dam 1854 361 12 2,009 High 1
Luther Reservoir Dam · 160 16 · Low 5
Hoppin Hill Reservoir Dam 1910 244 27 · High 1
Whiting Pond Dam 1959 433 10 · High 4
Manchester Pond Reservoir Dam 1963 3,000 28 · High 1
Attleboro Dye Works Pond Dam 1900 11 8 · Low 240
Dodgeville Pond Dam 1809 150 20 · Significant 25
Mechanics Pond Dam 1997 50 11 · Significant 20
Sweets Pond Dam 1934 36 12 · Low 20
Falls Pond Dam 1890 807 20 · High 8
Lake Samoset Dam · 302 24 · High 3
Heywood Reservoir Dam 1926 289 28 · Significant 1
Fall Brook Reservoir Dam And Dike 1896 1,290 37 · High 1
Notown Reservoir Dam 1876 1,900 26 · High 5
Scott Reservoir Dam 1875 445 40 · High 1
Lovell Reservoir Dam 1929 890 84 · High 5
Upper Sawmill Pond Dam 1850 404 16 · Significant 12
Simonds Pond Dam 2006 52 32 · Significant 5
Greenes Pond Dam 1925 9 13 · Significant 10
Overlook Reservoir Dam 1872 131 41 · High 0
Mill Pond #1 Dam 1876 16 14 · Significant 64
Snows Mill Pond Dam · 316 28 · High 29
Mctaggarts Pond Dam 1928 33 22 · Significant 15
Morse Reservoir Dam · 140 25 · Significant 0
Haynes Reservoir Dam · 230 15 · Significant 1
Rockwell Pond Dam · 44 20 · High 11
Pierce Pond Dam 1911 86 14 · High 7
James Pond Dam 1851 40 16 · Significant 12
Wachusett Reservoir Dam 1906 187,000 114 · High 121
Lancaster Mill Pond Dam · 265 26 · Significant 123
Reservoir #5 Dam 1900 395 31 · Low 0
Dudley Pond Dam 1917 23 5 · Significant 1
Lee Reservoir Dam 1935 64 12 · Low 3
Lee Pond Dam 1880 124 26 · Significant 6
Reservoir #4 Dam 1965 180 30 · Significant 1
Carpenter Reservoir Dam 1888 2,021 32 · Significant 5
Upper Meadow Pond Dam/Dike 1961 1,010 15 · Low 13
Whitin Pond Dam 1900 137 16 · Significant 51
Linwood Pond Dam 1865 300 18 · High 51
Caprons Pond Dam, Canal And Gates · 40 17 · Significant 55
Reservoir #6 Dam 1905 157 16 · Low 0
Buck Hill Conservation Dam 1969 49 14 · Significant 0
West Warren Mill Pond Dam 1900 29 19 · Low ·
Comins Pond Dam 1957 91 18 · Significant 2
Naultaug Brook Pond Dam · 30 18 · Significant 4
Lamberton Brook Dam 1965 0 26 · Significant 4
Jenny (Arms House) Pond Dam · 15 12 · Significant 4
Holmes Playground Dam 1900 46 16 · High 9
Hayden Pond Dam 1900 45 12 · Low 3
Lower Chandler Pond Dam · 50 10 · Significant 2
Morey's Bridge Dam 2013 2,700 13 · High 41
Barstowe's Pond 1920 210 8 · Significant ·
West End Beagle Club Dam 1962 42 13 · Significant 3
Bourn-Hadley Pond Dam 1940 74 9 · Low 1,800
Parker Pond Dam 2002 235 20 · Significant 7
Quinapoxet Reservoir Dam 1953 3,376 45 · High 20
Edson Pond Dam 1960 152 12 · Low 1,540
Moulton Pond Dam · 330 16 · High 2
Cresticon Upper 1931 420 12 195,000 Low 201
Reservoir #2 Dam · 750 16 · Significant 1
Crescent Street 1900 35 28 14,415 Significant 202
Rice City Pond Dam 1880 176 21 · High 147
Spindleville Pond Dam · 7 10 · Significant 12
Lower Sandra Pond Dam 2008 36 15 · Significant 0
Upper Westborough Reservoir Dam 1887 830 15 · Significant 1
Arnold Pond Dam 1900 27 14 · Low 1
Riverdale Mills 1957 89 10 19,400 Low 142
Carpenter Reservoir Dike 1920 2,219 28 · Low 5
Clark Reservoir Dam 1920 223 16 · Significant 3
Horse Pond Dam 2012 950 34 · Significant 1
Doane Pond Dam 1938 220 23 · Significant 2
Horse Pond Dam 1964 20 38 · Significant 4
Kittredge Dam 1964 20 27 · Significant 2
Manchaug Pond Dam 1836 3,550 28 · High 7
Sutton Falls Dam · 85 18 · Significant 3
Stevens Pond Dam · 1,260 30 · High 8
Gates Pond Dam 1915 790 21 · Low 0
Bartlett Pond Dam 1885 200 19 · Low 3
Holden Reservoir Dam #1 1883 2,250 46 · High 5
Lake Lashaway Dam 1926 1,320 23 · Significant 25
Barre Falls Dam 1958 0 69 16,300 High 55
Barre Falls Dam - Dike 1 1958 0 23 16,300 High 55
Barre Falls Dam - Dike 2 1958 0 38 16,300 High 55
Barre Falls Dam - Dike 3 1958 0 48 16,300 High 55
Birch Hill Dam 1942 0 49 56,600 High 175
Birch Hill Dam - Winchenden Dike 1942 0 49 56,600 High 175
Buffumville Dam 1958 1,440 15 29,800 High 27
Buffumville Dam - Pierpoint Pond Dike 1958 1,440 58 29,800 High 27
Conant Brook Dam 1966 0 85 10,750 High 8
Conant Brook Dam - Dike 1966 0 14 10,750 High 8
East Brimfield Dam 1960 1,200 53 15,000 High 68
Hodges Village Dam 1959 0 54 25,800 High 31
Hodges Village Dam - Dike 1 1959 0 30 25,800 High 31
Hodges Village Dam - Dikes 2, 3 And 4 1959 0 30 25,800 High 31
Littleville Dam 1965 9,400 164 92,000 High 52
Littleville Dam - Saddle Dike 1965 · 46 · High 52
Knightville Dam 1941 0 150 83,000 High 162
Tully Dam 1949 1,500 59 32,700 High 50
West Hill Dam 1961 0 48 8,900 High 28
West Hill Dam - Dike D 1961 0 48 8,900 High 28
Westville Dam 1962 100 72 24,500 High 100
Holyoke Dam 1900 26,000 30 251,400 Significant 8,309
Holyoke - Overflow No. 1 1850 26,000 30 3,364 High 8,309
Holyoke - Overflow No. 2 1860 26,000 30 2,615 High 8,309
Holyoke - Overflow No. 3 1860 26,000 20 1,935 Low 8,309
Holyoke - Overflow No. 4 1891 26,000 23 950 Low 8,309
Northfield Mt. - Main Dam 1973 17,050 145 0 High 1
Northfield Mt. - Upper Reservoir Intake 1973 17,050 20 0 High 1
Northfield Mt. - Upper Reservoir Spillway 1973 17,050 10 12,900 Low 1
Northfield Mt. - North Dike 1973 17,050 20 0 High 1
Northfield Mt. - Northwest Dike 1973 17,050 40 0 High 1
Northfield Mt. - West Dike 1973 17,050 30 0 High 1
Fife Brook 1974 4,600 130 73,900 High 250
Bear Swamp - North Dike 1974 5,100 155 6,700 Low 0
Bear Swamp - Dike A 1974 5,100 23 0 Low 0
Bear Swamp - East Dike 1974 5,100 50 0 High 0
Bear Swamp - South Dike 1974 5,100 140 0 High 0
Kettle Brook Reservoir #2 Dam 1903 250 28 · High 3
Kettle Brook Reservoir #3 Dam 1902 467 38 · High 3
Eagle Lake Dam 1938 680 20 · High 11
Brookhaven Lake Dam 1965 86 8 · Low 1
Rochdale Pond Dam · 344 20 · High 20
Greenville Pond Dam 1959 300 22 · High 15
Stiles Reservoir Dam 1865 2,700 29 · High 5
Cedar Meadow Pond Dam 1924 1,000 15 · Significant 4
Burncoat Pond Dam · 600 14 · Significant 3
Sargent Pond Dam · 491 15 · Significant 3
Waite Pond Dam · 230 11 · Significant 5
Kettle Brook Reservoir #1 Dam 1895 68 23 · High 4
Lynde Brook Reservoir Dam 1876 2,300 61 · High 3
Demond Pond Dam · 750 12 · Significant 2
Buffumville Pond Dam · 140 17 · Significant ·
Old Shepherd Pond Dam 1925 50 7 · Low 2
Barefoot Brook Dam 1962 0 16 · Significant 1
Assabet River Dam · 15 11 · Significant 30
Cold Harbor Brook Dam 1963 0 22 · High 6
Lensdale Pond Dam · 74 21 · Significant 126
Hop Brook Dam 1963 0 23 · High 5
Smith Pond Dam 1928 40 8 · Low 7
George H. Nichols Multipurpose Dam 1969 1,770 22 · High 7
Upper Flint Pond Dam · 180 10 · Significant 8
Calkins Pond Dam 1961 50 14 · Significant 1
Gore Pond Dam · 404 12 · Significant 2
Ames Pond Dam 1920 350 11 · High 2
Crystal Lake Dam 1903 838 6 · Significant 1
Mill River Dam 1939 26 40 · Significant 54
New Bedford Reservoir Dam 1867 1,525 10 · Significant 7
Ellis Pond Dam 1990 59 7 · Significant 1
Meetinghouse Pond Reservoir Dam 1898 570 9 · Significant 2
Minott Pond Dam · 23 7 · Significant 1
Mare Meadow Reservoir Dam 1954 4,909 40 · High 3
Bickford Pond Dam 1970 2,555 51 · High 3
Bickford Pond Dike 1970 1,584 17 · High 3
Noannet Pond Dam 1963 150 18 · Significant 1
Indian Brook Dam 1930 15 13 · High 6
Bartlett Pond Dam 1850 57 12 · Significant 2
Mill Pond Dam 1930 45 9 · Significant 2
Red Brook Road Dam · 12 5 · Significant ·
Johns Pond Dam 1950 680 8 · Low 210
Old Oaken Bucket Pond Dam 1640 35 6 · Significant 5
Hackett Pond Dam 2013 20 12 · Significant 2
Higley Brook Dam 1972 69 12 · Low 0
Riiska Brook Dam 1952 45 19 · Low 0
Indian Lake Dam 1975 370 15 · High 1
Clam Lake Dam 1977 750 94 · High 11
Coles Brook Pond Dam 1960 77 11 · Low 3
Little Robin Hood Lake Dam 1960 34 13 · Significant 1
Roaring Brook Dam 1975 450 65 · High 4
Black Brook Pl-566 Flood Control Dam 1971 74 60 · High 2
Conway Recreation Dam 2013 14 20 · Significant 1
Lost Wilderness Lake Northern Dam 1976 1,200 23 · Significant 1
Watson Road Dam 1965 42 9 · Significant 0
Bel Air Dam · 24 27 · High 23
Egypt Reservoir 1894 480 37 · High 1
West Meadow Pond Dam 1965 350 10 · Significant 5
Hebronville Pond Dam 1875 140 14 · High 28
Ames Pond Dam 1920 42 6 · Low 1
Shovelshop Pond Dam 1950 30 9 · Low 4
Lower Mill Pond Or Stoney Brook Dam 1920 250 7 · Low 5
Red Brook Pond Dam 1973 72 13 · Low 2
Sanford Mill Pond Dam · 0 18 · Significant ·
Old Cabot Pond Dam 1751 20 10 · Significant 3
Montaup #3 Dam · 42 11 · Low 12
Swansea Dam · 44 13 · Significant 4
Noquochoke Lake Dam 1854 440 14 · High 27
Middle Reservoir Dike 1891 1,790 15 · Significant 0
Amelia Earhart Dam 1965 4,520 21 · Low 32
New Charles River Dam 1978 3,950 36 · Significant 313
Neponset River Dam - Lower Mills · 220 15 · Significant 109
Neponset River Dam - Hyde Park · 100 22 · Significant 98
Mill River Culvert And Tide Gate 1970 47 12 · Low 3
Buswell Pond Dam 1923 17 4 · Significant 0
Goose Cove North Dam 1963 825 35 · High 1
Goose Cove Northwest Dike 1963 825 45 · High 1
Goose Cove Southwest Dike 1963 825 9 · High 1
Straits Pond Dam 1908 302 12 · Significant 1
Nichols Road Dam · 65 10 · Significant 0
Valley Pond Dam 1962 105 14 · Significant 1
Valley Pond Dike 1961 105 11 · Significant 1
Sudbury River Dam 1900 21 7 · Low 33
Grist Mill Pond Dam 1800 100 18 · Low 3
Bleachery Dam 1900 60 8 · Low 262
Waban Hill Reservoir Dam 1900 15 24 · Low 0
Rosemary Lake Dam 1830 64 12 · High 1
Chestnut Hill Reservoir Dam 1898 970 19 · High 0
Cordingly Dam 1912 0 11 · Significant 217
Snake Brook Dam 1878 150 13 · Significant 1
Morses Pond Dam · 420 12 · Significant 9
Mill Pond Dam 1973 1,525 50 · High 0
Mill Pond Reservoir North Dike 1973 1,525 50 · Significant 0
Mill Pond South Dike 1973 1,525 50 · High 0
Scalley Dam 1989 840 15 · Significant 9
Wedge Pond Dam 1900 35 9 · Low 11
Lexington Reservoir Dam 1900 54 11 · Significant 0
Barretts Mill Road Dam · 58 9 · Low 7
Musquetaquid Pond Dam (Upper) 1900 38 8 · Low 0
Millpond Dam 1890 562 20 · Significant 115
Stearns Millpond Dam · 128 10 · Significant 4
Brackett Pond Dam 1930 73 13 · Significant 1
Field Pond Dam 1930 170 13 · Significant 1
Lynn Waterways Dam 1915 270 8 · Low 11
South Middleton Dam 1953 39 10 · Significant 44
Suntaug Lake Dam 1971 1,840 17 · High 1
Crystal Lake Dam 1930 670 8 · Significant 2
Elginwood Pond Dam · 35 7 · Significant 3
Stearns Pond Dam 1930 260 11 · Low 1
Lake Quannapowitt Dam 1927 1,625 6 · Significant 1
Mill Pond Dam 1958 93 16 · Low 2
Turner Pond Dam 1949 470 14 · Significant 8
Kingsbury Pond Dam 1983 60 11 · Significant 1
Turner Pond Dam 1800 61 10 · Significant 7
Carpenter Pond Dam 1888 250 15 · Significant 1
Rabbitt Hill Pond Dam 1940 150 8 · Low 0
Bush Pond #2 Dam 1900 55 12 · Low 2,000
Foundry Lake Dam 1950 85 9 · Low 3
Trowel Shop Pond Dam 1940 50 20 · Low ·
Shepard Pond Dam · 19 16 · Significant 11
Lake Holbrook Dam 1920 90 10 · Significant 3
Blackstone River Saranac Dam At Canal Street 1910 43 13 · Low 358
West River Pond Dam 1920 350 15 · Significant 34
Lake Hiawatha Dam 2007 600 10 · Significant 1
Orrs Pond Dam 1906 180 18 · Low 2
Draka Dam · 150 13 · Significant 83
Lackey Pond Dam 2000 505 16 · Significant 34
Old Mill Pond Dam · 2 17 · Significant 28
Prindle Lake Dam 1952 150 11 · Significant 0
Howe Mill Pond Dam · 40 13 · Significant 4
Pikes Pond Dam 1999 155 10 · Low 7
Hayes Pond Dam · 25 12 · Significant 5
Woodbury Pond Dam 1900 35 20 · Low 6
Nabnasset Pond Dam 1926 1,000 14 · Significant 2
Lower Long Pond Dam 1961 22 8 · Low ·
Plow Shop Pond Dam 1856 153 7 · Low 16
Balch Pond Dike · 47 3 · Significant 4
Lowell Reservoir Dam 1872 84 26 · High 0
Delaney Complex E Bolton Dam 1971 10 16 · Low 8
Delaney Complex 1967 425 22 · Significant 15
Tyler Dam 1980 10 34 · High 40
Winnekenni Basin Dam 1970 55 10 · Low 0
Baldpate Pond Dam 1960 130 10 · Low 1,160
Fourmile Pond Dam 1900 134 10 · Low 2
Towne Pond Dam 1975 200 14 · Low 0
Johnsons Pond Dam 1930 810 9 · Significant 5
Creighton Pond Dam 1930 50 10 · Low 1
Farnums Mill Pond Dam 1900 55 14 · Low 3
Rantoul Pond Dam 1940 130 8 · Low 1,780
Norumbega Reservoir Dike #2 1940 250 42 · Significant 0
Norumbega Reservoir Dike #4 1940 250 42 · High 0
Norumbega Reservoir Dike #3 1940 250 42 · Significant 0
Lake Attitash Dam 1950 1,500 7 · Low 4
Haggetts Pond Dam 1940 378 6 · Significant 2
Winning Pond Dam 1920 60 7 · Low ·
Russell Mill Pond Dam 1954 51 18 · Significant 10
Long Pond Dam 1900 150 8 · Low 1
Bixby Reservoir Dam 1900 71 7 · Low 1
Heald Pond Dam 1900 85 8 · Low 0
Lester G. Ross Dam 1970 28 44 · High 9
Brewer Brook Dam 1964 10 25 · Significant 1
Rocky Pond Dam 1950 178 8 · Low 790
Northborough Reservoir Dam · 45 15 · Significant 2
Fitchburg Reservoir South Dike 1900 2,018 20 · Low 2
Overlook Reservoir Dike 1872 131 22 · High 0
Arden-Duck Mill Dam 1937 54 18 · Low 65
Notown Reservoir Dike 1876 1,900 25 · High 5
Burnt Mill Pond Dam 1900 81 9 · Low 2
Dunn Pond Dam 1934 60 13 · Significant 1
Ridgley Pond Dam · 33 12 · Significant 1
Otter River Dam 1900 25 10 · Low 38
Maple Spring Pond Dam 1885 126 11 · Significant 2
Asnacomet Pond Dam · 600 9 · Significant 1
Thayer Pond Dam 1930 78 3 · Low 2
Tekoa Dam 1876 11 32 · Low 4
Button Shop Dam #1 · 14 20 · Significant 35
Button Shop Dam #2 · 14 24 · Significant 35
Upper Reservoir Dam · 22 17 · Significant 0
Mauserts Pond Dam 1998 245 14 · Significant 3
Ruggles Pond Dam 2007 43 9 · Significant 1
Wade Lake Dam · 108 10 · Significant 10
Haskins Pond Dam 1937 60 15 · Significant 10
Pilchs #3 Dam 1948 57 15 · Low 0
Manns Pond Dam · 28 14 · Significant 1
South Reservoir East Dike 1882 811 15 · High 1
Aaron River Dam 1976 1,470 30 · High 5
Goodfellow Pond Dam 1920 50 24 · Low 5
Lake Pentucket Dam · 370 8 · Significant 0
Searles Pond Dam 1979 6 8 · Significant 1
Lynn Reservoir Dam 1872 63 10 · Significant 0
Manchester Pond Reservoir South Dike · 3,000 16 · High 1
Manchester Pond Reservoir East Dike Embkmt 3 And 4 · 3,000 15 · High 1
Lynde Brook Reservoir Dike 1876 1,200 17 · High ·
Smelt Brook Dam 1975 34 15 · High 1
Wachusett Reservoir North Dike 1904 187,000 85 · High 121
Mountain Street Reservoir Dikes 1905 550 16 · Low ·
Ames Pond Dike A 2003 350 11 · High 2
Putnamville Reservoir East Dike 1954 6,600 24 · High 1
Gavco Pond Dam 1975 51 22 · Low 1
Dawson Pond Dam 1960 38 15 · Low 1
Dean Pond Dam · 190 8 · Significant 2
Fitch Basin Dam 1928 93 15 · Significant 0
Upper Lynde Basin Dam 1924 44 15 · Significant 1
Greenfield Electric Light & Power Dam · 14 21 · Significant 89
Calkins Pond Upper Dam · 21 25 · Significant ·
Nine Lot Dam 1960 34 11 · Low 0
Lovell Reservoir Dike 1929 890 27 · High 5
Fernwood Lake East Dam 1877 225 5 · High 0
Fernwood Lake West Dam 1877 225 11 · High 0
Cornell Lower Pond Dam · 45 8 · Significant 9
Shearer Pond 1968 10 15 75 Significant 1
Crosby Pond Dam · 30 9 · Significant 1
Woodwards Mill Dam 1900 25 15 · Low 7
Day Street Dam · 10 17 · Significant 1
No. Leo. Gun Club Dam 1959 0 14 303 Significant 1
Cochichewick River Dam 1820 20 13 · Significant 7
Artichoke River Dam 1950 79 15 · Low 7
Ames Pond Dike B · 350 11 · Significant 2
Bethune Pond Dam · 11 15 · Significant 1
Goldthwaite Brook Dam · 19 8 · Low 5
Goldthwaite Brook Dam #2 · 7 8 · Low 6
Walker Farm Pond Dam · 107 9 · Low ·
Pratt's Pond Dam · 8 11 · Significant 0
Cournoyer Pond Dam · 25 14 · Low ·
Current Meter Pond Dam 1908 14 15 · Significant 5
Coes Lower Pond Dam 1865 21 15 · Significant 4
Duffy Mill Pond Dam · 4 17 · Significant 9
Whitney Pond Dam · 8 18 · Significant 4
Ward Pond Dam · 13 4 · Significant 1
Allen Mill Pond Dam · 15 18 · Significant 6
Ramsdall Pond Dam · 9 9 · Significant 9
Hobbys Pond Dam · 15 7 · Significant 1
Hilchey Pond Dam · 23 11 · Significant 3
Bennett Pond Dam · 14 11 · Significant 0
Richard Clapp Dam 1955 19 11 · Significant 3
Adams Pond Dam · 117 7 · Significant 1
Mahar Regional School Dam 1956 8 10 · Significant 0
Davenport Pond Dam · 105 7 · Low 2
Graves Pond Dam 1970 19 7 · Significant 0
Brass Mill Pond Dam · 11 20 · Low 29
Arnold Dam 1954 0 21 · Significant 3
Wee Laddie Pond Dam 1974 17 5 · Significant 2
Lambs Pond Dam · 45 6 · Significant 1
Rail Road Pond Dam · 22 10 · Significant 1
Springfield Sportsman's Club Dam · 4 15 · Significant 0
Cooley Hill Reservoir Dam 1887 19 18 · Significant 0
Walker Pond Dam 1957 195 8 · Low 4
Cusky Pond Dam · 80 7 · Low 1
Bartlett Pond Dam · 90 14 · Significant 24
Slaters Pond Dam 2004 800 22 · Significant 2
Eames Pond Dam · 16 13 · Significant 4
Mckinstry Pond Dam · 32 7 · Significant 0
Parker Pond Dam · 4 12 · Significant 3
Edget's Pond Dam · 11 14 · Significant 10
Lac Marie Dam · 15 13 · Significant 6
Middle Pond Dam · 23 14 · Low ·
Mill Pond Dam · 60 12 · Significant 67
Old Mill Pond Dam · 30 13 · Significant ·
Recreation Pond Dam · 16 7 · Significant 0
Arthur J Bousquet Dam · 13 7 · Significant 0
Skowron Pond 1961 17 8 50 Significant 0
Blood Pond Dam · 25 11 · Significant 0
Crane Brook Upper Dam · 240 11 · Significant 4
Sealund Reservoir Dam · 19 15 · Significant 2
Oakman Pond Dam · 17 13 · Significant 1
Stedman Marsh Dam · 182 8 · Low 0
Parkers Forge Pond Dam · 7 8 · Significant 6
Bauer Dam · 72 7 · Low 1
Upper Shawme Lake Dam · 183 12 · Significant 0
Old Grist Mill Pond Dam 1745 15 12 · High 6
Weld Pond Dam 1900 157 17 · Low 0
Meadow Dam · 63 7 · Significant 2
Fernwood Lake South Dike 1877 225 8 · Significant 1
Butterfield Pond Dam 1938 26 22 · Significant 1
Indian Hill Reservoir Dam&Dikes 1981 2,455 30 · Low 1
Barrett Park Pond Dam · 35 15 · Significant 1
Pumping Station Dam 1992 4 22 · Significant 52
Mill Pond Dam 1981 13 12 · Significant 5
Mill Pond Dam 1996 49 8 · Significant 1
Putmanville Reservoir South Dike 1954 600 7 · High 1
Falulah Reservoir Dam 1883 22 20 · Significant 0
Wayside Pond Dam 1964 3 8 · Significant 2
Mahoney Pond Dam · 10 10 · Significant 5
Kendall Reservoir Lower Basin Dam · 2,850 8 · Significant 2
Vorces Pond Dam 1892 11 12 · Significant 1
Gale Brothers Dam · 1 9 · Significant 1
Red Dam · 8 15 · High 19
Parsons Reservoir Dam · 20 13 · Significant 0
Wild Acres Pond #2 Dam 1970 44 8 · Low 1
Lower Gore Pond Dam · 125 20 · Significant 2
Muzzy Meadow Dam · 24 13 · High 1
Shawville Pond Dam 2003 10 13 · Significant 2
Squires Dam · 8 10 · Significant 0
Wequaquet Lake Dam · 431 7 · Significant 4
Mill Pond Dam · 19 7 · Significant 8
Lumbert Pond Dam · 16 7 · Significant ·
Mill Pond Dam · 15 13 · Significant 7
South Brook Dam · 13 9 · Significant 2
Ellis Brett Pond Dam · 8 11 · High 6
Cross Pond Dam 1930 3 7 · Significant 6
Lake Noquochoke Upper Dam 1942 450 8 · Low 20
Russells Mill Pond Dam · 16 8 · Significant 29
Long Pond Dam · 413 12 · Significant 3
North Watuppa Pond Dam 1963 2,717 11 · High 11
Copicut Reservoir Dam 1971 8,000 40 · High 7
Gavins Pond Dam · 110 9 · Significant 4
Beaumont Pond Dam 1886 125 11 · Low 3
Glue Factory Pond West Dam · 35 10 · Significant 6
West Street Dam · 15 12 · Significant 5
North Harwich Reservoir Dam · 180 8 · Low 2
Maple Street Dam 1900 10 21 · Low 4
Canoe River Campground Dam 2010 20 10 · Significant 10
Fulton Pond Dam 1999 24 8 · High 11
Kingman Pond Dam 2007 35 12 · Significant 12
Santuit Pond Dam · 375 8 · Significant 2
Mattapoisett River Dam 1996 20 10 · Significant 24
Russell Pond Dam · 12 10 · Significant 1
Store Pond Dam · 11 7 · Significant 0
Island Pond Dam · 320 10 · Low 1
Winnetuxet Road Pond Dam · 10 12 · Significant 10
Perryville Pond Dam · 20 10 · Significant 7
Nye Pond Dam · 42 13 · Significant 1
Lower Shawme Lake Dam 1654 32 10 · Significant 1
Massapoag Lake Dam · 5,230 7 · Significant 4
Hammershop Pond Dam · 9 13 · Significant 4
Mill Pond Dam · 4 5 · Significant 5
War Memorial Park Dam 1900 225 7 · Low 51
Cobbs Pond Dam · 30 12 · High 2
Memorial Pond Dam 2004 12 11 · Significant 2
Diamond Pond Dam · 30 10 · Significant 2
Sawdy Pond Dam 1938 3,400 11 · Significant 4
Iron Hill Dam · 25 26 · High 13
Hobart Pond 1693 85 10 · Low 7
Long Pond Dam 1966 80 7 · Low 2
Lower Flint Pond Dam · 8 28 · Low 8
Curve St. Dam 1904 0 9 · Significant 4
Salem Pond Dam 1930 36 12 · Low 0
Damon Pond Dam 1938 7 29 · High 6
Echo Lake Dam 2013 8 12 · Significant 0
Stringer Dam 1900 1,000 8 · Low 20
Wallis Pond Dam · 20 16 · Low 3
Howe Reservoir Dam · 15 11 · Significant 3
Quequechan Control Structure 1963 16,000 25 · High 29
Mashpee River (Rte 130) Dam · 5 12 · Significant 14
Mirror Lake Dam · 240 7 · Significant 1
Upper Reservoir Dam 1900 13 7 · Low 0
Middle Pond Dam #1 1967 180 19 · Significant 1
Route 25 #1 Dam 1964 50 16 · High 0
October Mt. Lake Dam 1985 1,340 39 · High 2
Burnshirt River Dam · 20 8 · Significant 4
Centennial Dam · 66 21 · High 2
Colburn St. Dam · 29 11 · Significant 1
Cochran Dam 1900 640 13 · Low 4
Moose Hill Pond Dam 1980 1,530 71 · High 5
Schoolhouse Lake Dam 1986 800 63 · High 3
Metropolitan Circular Dam · 18 27 · Significant 211
Whitehall Pond Dam · 1,000 22 · Significant 5
Colrain Lower Reservoir Dam 1902 3 15 · Significant 0
Mt. Pleasant Pond Dam 1967 45 13 · Significant 1
Allen Site Dam 1981 48 21 6,280 High 1
Fisk Brook Dam 1987 9 22 · Significant 3
Greylock Greenhouse Dam 1997 10 7 · Significant 0
East Mt. Reservoir Dam · 15 20 · Significant 0
Natural Bridge Dam 1995 3 25 · Significant 6
Liberman's Pond Dam · 120 8 · Low 1
Sharkey Pond Dam · 20 25 · Low ·
Little Galilee Pond Dam · 78 14 · Low 3
Ron Nelson Dam 1900 14 29 · Low 0
Standish Chard Dam · 26 34 · Significant ·
Queensville Dam 2010 9 22 · Significant 0
O'Brien Pond Dam · 13 13 · Significant 5
Bloods Pond Dam 2004 42 12 · Significant 4
Grist Mill Dam 1900 29 10 · Low 4
Wallace Pond Dam · 210 11 · Significant 4
Eddy Pond Dam 1920 1,040 29 · High 1
Worcester Diversion Levee System 1960 16 20 · Significant 30
Dark Brook Reservoir Dike A 1950 2,597 11 · Significant 3
Barre Town Reservoir Dam · 22 10 · Significant 0
Mossy Pond Dam 1876 201 10 · Significant 5
Douglas Mill Pond Dam · 2 17 · Significant 28
Morse Pond Dam · 93 9 · Low ·
Dunn Brook Pond Dam · 6 6 · Significant 0
Waste Water Treatment Plant Dam · 19 25 · Low 41
Mirror Lake Dam 1991 38 15 · Significant 0
Hovey Pond Dam 1955 100 23 · High 26
Windle Pond Dam · 14 10 · Significant 3
Health Camp Dam · 7 14 · Significant ·
Brick City Mill Pond Dam · 36 22 · Significant 5
Bucks Pond Dam · 4 10 · Significant 4
Farm Pond Dam 1900 3 8 · Low 4
Holbrook Mill Pond Dam · 3 18 · Significant 5
Lower Meadow Pond Dam · 350 16 · Significant 6
Fish Pond Dam · 24 9 · Low 6
Riley Pond Dam · 36 5 · Significant 0
Snow Pond Dam · 95 10 · Low 1
Upper Tucker Pond East Dam · 162 13 · Significant 3
Putnam Pond Dam · 30 15 · Significant 2
Schoolhouse Pond Dam · 20 8 · Significant 1
Pleasant Falls Mill Pond Dam · 80 22 · Significant 81
Welsh Pond Dam · 35 12 · Significant 0
Summit Pond Dam · 75 10 · Significant 0
Adams Pond Dam 2014 63 8 · Significant 1
Town Farm Pond Dam · 12 11 · Significant 0
Taft Pond Dam 1900 52 13 · Low 1
Rivulet Village Pond Dam · 50 16 · High 3
Ironstone Reservoir Dam 1928 110 10 · Significant 3
Lake Wickaboag Dam 1900 599 7 · Low 17
Mill Brook Canal Dam · 20 9 · Significant 10
Webster Lake Dam 1957 4,766 15 · Significant 10
Smith Mill Pond Dam · 16 15 · Significant 8
Cedar Street Dam · 9 12 · Significant 0
Damondale Dam · 150 10 · Significant 118
Chicken Brook Dam 1965 58 12 · Low 0
Weston's Dam 1970 38 15 · Low 4
Lake Winthrop Dam 1966 405 5 · Significant 2
Factory Pond Dam 1873 18 13 · Significant 6
Spot Pond Dam · 5,625 18 · Significant 1
Hobbs Pond Dam 1900 43 9 · Low 1
Metro Circ Dam, Hemlock Gorge Spillway · 18 15 · Significant 211
Forest Lake Dam · 60 7 · Low 0
Mill Pond Dam · 62 10 · Significant 5
Griswold Lower Pond Dam 1983 17 12 · Significant 0
Spring Pond Dam · 27 6 · Significant 0
Stevens Pond East Dam 1995 30 13 · Significant 1
Stevens Pond West Dam 1900 85 12 · Low 0
Farmers Pond Dam · 12 10 · Significant 11
Lake Como Dam · 17 13 · Significant 179
Hawes Pond Dam · 18 8 · Significant 16
Leach Pond Dam · 656 7 · Low 3
Pud's Pond Dam 1800 400 12 · Low 1
Firestone Pond Dam #1 · 7 9 · Significant 6
Cook Pond Dam · 400 15 · Low 1
Tisdale Pond Dam 1974 9 9 · Significant 22
Brown Pond Dam · 7 7 · Significant 13
Stillwater Pond Dam · 55 12 · Low ·
Robinson Pond Dam 1999 20 10 · Significant 19
Mill Pond Dam 2001 23 9 · Significant 7
Buttonwood Park Pond Dam · 16 8 · Significant 1
Barrowsville Pond Dam 1920 180 13 · Significant 38
Rumford River Dam · 6 9 · Significant 20
Hewitt Pond Dam · 50 7 · Low ·
Three Mile River #1 Dam 1943 264 13 · Significant 76
Middle Pond Dam #2 · 180 16 · Significant 1
Middle Pond Dam #3 1969 180 11 · Significant 1
Lake Rico Dam 1972 1,260 26 · Significant 3
Silver Lake Dam 1998 440 10 · Significant 2
Jenks Pond Dam 1900 380 7 · Low 1
Armstrong Pond Dam · 17 20 · High 26
Shepard Street Dam 1956 6 11 · Significant 11
Revere Street Dam 1963 45 12 · Significant 27
Spillway Dam At Neponset St. · 12 12 · Significant 29
Ponkapoag Pond Dam 2009 1,126 7 · Significant 2
Mother Brook Diversion At Charles River 1959 0 16 · Significant 217
Willow St. By-Pass Dam · 0 12 · Low 4
Sunset Lake Dam · 60 10 · Significant 0
Neponset Reservoir Dam 2009 1,500 10 · Significant 2
Medway Park Dam 2008 72 12 · Significant 7
Wetherell Pond Dam · 28 7 · Low 4
George St. Pond Dam · 4 7 · Significant ·
Hollingsworth & Vose Dam · 30 12 · Significant 26
Neponset River Dam 1850 55 15 · Low 11
Crocker Pond Dam 1900 50 7 · Low 3
South Street Pond Dam · 18 14 · Significant 3
Assawompset Pond Dam 1894 56,000 8 · Low 38
Leonards Pond Dike · 135 5 · Significant 9
Breeds Pond Lantern Rock Dike #4 1914 3,400 30 · High 1
Breeds Pond Dike #8 1914 3,400 30 · High 1
Breeds Pond Dike #10 1914 0 5 · High 1
Breed's Pond Dike #11 1914 1,000 12 · High 1
Breeds Pond Dike #12 1914 1,000 12 · High 1
Strangmans Pond Dam 1884 170 10 · High 4
Freeman Lake Dam 1976 1,100 29 · Significant 1
Borderland S.P. Dam #2 1940 24 14 · Low 1
Collins Pond Dam 1930 11 13 · Significant 1
Paradise Pond Dam · 413 11 · Significant 0
Wellesley Avenue Dam · 62 11 · Low 2
Frye Pond Dam 1932 25 10 · Significant 3
Bound Brook Dam 1999 324 11 · Significant 9
Kenoza Lake Outlet Dam 1979 6,994 10 · Significant 2
Sucker Brook Dam 1967 0 27 · Significant 2
Cushing Pond Dam 1900 19 12 · Significant 2
Allen Reservoir Pl-566 Flood Control Dam 1980 43 21 · High 1
Paintshop Pond Dam 1900 55 12 · Low 9
Stevens Swamp Dam · 72 15 · Low 1
Field Pond Dike · 170 10 · Significant 1
Kendall Mill Dam · 17 8 · Significant 10
Cabot Pond Dam · 20 9 · Significant 12
Whitehall Upper Pond Dam · 6 10 · Significant 5
Old Water Supply Dam 2013 13 12 · Significant 0
Wilson Corne Mill Dam 1675 25 13 · Significant 8
Constance M. Fiske Flood Retarding Dam 1984 0 28 · High 2
Woodpecker Pond Dam · 0 7 · Low 0
Watson Pond · 130 9 · Significant 1
Wachusett Reservoir South Dike 1906 187,000 45 · High 121
Upper Leach Pond Dike #1 1930 135 7 · Low 1
Upper Leach Pond Dike #2 1930 135 8 · Low 1
Mirror Lake Dike · 240 9 · Significant 1
Upper Crow Hills Pond Dam 1956 28 11 · Significant 0
Middle Pond Dam #4 · 180 16 · Significant 1
October Mt. Lake Dike 1985 870 20 · High 2
E. Branch Horseshoe Dam · 15,198 32 · Low 44
Mount Wayte Outlet Works · 235 7 · Low 1
Whitehall Reservoir Distribution Dam 1990 1 15 · Significant 5
Fells Reservoir Dam - #2 2011 85 12 · Significant 0
Fells Reservoir Dam - #3 1898 85 25 · Significant 0
Fells Reservoir Dam - #6 2011 85 17 · Significant 0
Fells Reservoir Dam - #8 2010 85 48 · High 0
Norumbega Reservoir East Dike 1940 250 42 · High 0
Spot Pond Dike #4 1880 5,625 9 · Significant 1
Spot Pond Dike #5 1880 5,625 9 · Significant 1
Bear Brook Dam · 1 8 · Significant 0
Mill Pond Dam 2013 3 13 · Significant 1
Cogan Pond Dam · 18 25 · Low 3
Westinghouse Dam · 17 15 · Significant 2
Patch Pond Dam · 24 12 · High 10
Brookline Reservoir Dam 1848 200 19 · High 0
Danielson Mill Dam · 26 7 · Significant 0
Pond At West Road Dam · 36 20 · Low ·
Sibley Reservoir Dam · 235 19 · Significant 1
Lancelot Lake Dam · 37 19 · High 0
Morse Pond Dam · 136 9 · Low 1
Highland Commons Pond B Dam & Dike · 7 50 · Significant 0
Number One Pond Dam · 24 11 · Significant ·
Delcarte Open Space Dam No. 3 · 50 9 · Low 1
Stony Brook Pond Dam 2010 64 10 · Significant 1
Estabrook Farm Pond Dam · 18 22 · Low 0
Mechanics Pond Dike 1997 50 11 · Significant 20
Niskayuna Pond Dam · 16 25 · Low ·
Bulloughs Pond Dam · 12 9 · Significant ·
Osgood Pond Dam · 10 28 · Significant 7
Woods Pond Dam · 85 8 · Low 0
Hales Pond Dam · 42 20 · Low 2
Harding Pond Dam · 6 9 · Significant 0
Grays Mill Pond Dam · 8 11 · Significant ·
Hatchet Pond Dam · 307 12 · Significant 0
Mossy Pond Dike · 201 10 · Significant ·
Ware Lower 1890 110 18 2,080 Low 167
Collins 1984 378 11 12,000 Low 682
Reservoir FAQ

About Massachusetts dams & reservoirs

Where does the Massachusetts dam data come from?

The U.S. Army Corps of Engineers National Inventory of Dams (NID) plus state water-resource agencies. Snoflo joins these public records with live USGS streamgauge readings downstream where available. The NID is the canonical federal dam registry.

What does Hazard Potential mean?

USACE classifies every dam by what would happen if it failed: Low (no loss of life expected, minimal economic damage), Significant (no loss of life but economic, environmental, or lifeline damage), High (loss of life expected). It's a downstream-consequence rating, not a likelihood of failure.

What is Normal Storage in acre-feet?

The volume of water the reservoir holds at its normal operating level, measured in acre-feet. One acre-foot is about 325,851 gallons or 1,233 cubic meters — the amount needed to cover one acre to a depth of one foot.

Why are some Massachusetts dams missing storage or height data?

USACE NID records can have gaps for small or older dams that pre-date federal reporting requirements. Snoflo surfaces whatever the canonical record contains. If a dam you care about has incomplete data, contact the operating agency or USACE for updates.

Can I see live water levels?

Yes — tap any dam name to open its detail page, which pulls live storage data from USGS streamgauges or operating-agency feeds where available. Historical levels and seasonal averages are also shown.

Why does Massachusetts have so many dams?

The U.S. has over 90,000 dams — most built between 1930 and 1980 during the federal water-development era. Massachusetts's count reflects a combination of agricultural irrigation needs, flood control, hydropower, and recreation. The "Built by decade" chart above shows the timeline.