Flood Control Dams in Massachusetts
Massachusetts has 91 flood control dams, of which 44 carry a high hazard classification. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate.
| # | Dam | County | Height (ft) | Hazard | Condition | Year |
|---|---|---|---|---|---|---|
| 1 | Knightville Dam | Hampshire | 150 | High | Not Available | 1941 |
| 2 | Clam Lake Dam | Berkshire | 97 | High | Fair | 1977 |
| 3 | North Silver Lake Dam | Berkshire | 76 | High | Fair | |
| 4 | Westville Dam | Worcester | 72 | High | Not Available | 1962 |
| 5 | Moose Hill Reservoir Dam | Worcester | 71 | High | Satisfactory | 1980 |
| 6 | Barre Falls Dam | Worcester | 69 | High | Not Available | 1958 |
| 7 | Schoolhouse Lake Dam | Berkshire | 63 | High | Satisfactory | 1986 |
| 8 | Tully Dam | Worcester | 59 | High | Not Available | 1949 |
| 9 | Arm Brook Pl-566 Flood Control Dam | Hampden | 58 | High | Satisfactory | 1963 |
| 10 | East Brimfield Dam | Worcester | 53 | High | Not Available | 1960 |
| 11 | Eclipse Dam | Berkshire | 52 | High | Fair | 1890 |
| 12 | Highland Commons Pond B Dam & Dike | Worcester | 50 | Significant | Satisfactory | 2010 |
| 13 | Birch Hill Dam - Winchenden Dike | Worcester | 49 | High | Not Available | 1942 |
| 14 | Powdermill Brook Pl-566 Flood Control Dam | Hampden | 48 | High | Fair | 1962 |
| 15 | Barre Falls Dam - Dike 3 | Worcester | 48 | High | Not Available | 1958 |
| 16 | West Hill Dam - Dike D | Worcester | 48 | High | Not Available | 1961 |
| 17 | Littleville Dam - Saddle Dike | Hampshire | 46 | High | Not Available | 1965 |
| 18 | Lester G. Ross Dam | Worcester | 46 | High | Satisfactory | 1974 |
| 19 | Abbey Lake Dam | Berkshire | 40 | High | Satisfactory | 1967 |
| 20 | Mill River Dam | Hampshire | 40 | Significant | Satisfactory | 1939 |
| 21 | October Mountain Lake Dam | Berkshire | 39 | High | Satisfactory | 1972 |
| 22 | Washington Mountain Lake Dam | Berkshire | 38 | High | Satisfactory | 1972 |
| 23 | Ware River Diversion Dam | Worcester | 38 | Significant | Satisfactory | 1910 |
| 24 | Horse Pond Dam | Worcester | 38 | Significant | Satisfactory | 1964 |
| 25 | Barre Falls Dam - Dike 2 | Worcester | 38 | High | Not Available | 1958 |
| 26 | Braintree Dam | Norfolk | 37 | High | Fair | 1888 |
| 27 | New Charles River Dam | Suffolk | 36 | Significant | Satisfactory | 1978 |
| 28 | Tyler Dam | Middlesex | 34 | High | Satisfactory | 1965 |
| 29 | Thousand Acre Lake Dam | Berkshire | 32 | High | Fair | 1960 |
| 30 | Mountain Lake Dam | Hampden | 32 | High | Satisfactory | 1923 |
| 31 | South Silver Dam | Berkshire | 31 | High | Satisfactory | 1967 |
| 32 | Hodges Village Dam - Dike 1 | Worcester | 30 | High | Not Available | 1959 |
| 33 | Constance M. Fiske Flood Retarding Dam | Middlesex | 28 | High | Satisfactory | 1984 |
| 34 | Sucker Brook Dam | Worcester | 27 | Significant | Satisfactory | |
| 35 | Kittredge Dam | Worcester | 27 | Significant | Satisfactory | 1964 |
| 36 | Rocky Hill Pond Dam | Hampshire | 26 | Low | Poor | 1924 |
| 37 | Lamberton Brook Dam | Worcester | 26 | Significant | Satisfactory | 1965 |
| 38 | West Lake Dam | Berkshire | 25 | High | Satisfactory | 1967 |
| 39 | Quequechan Control Structure | Bristol | 25 | High | Satisfactory | 1963 |
| 40 | Brewer Brook Dam | Worcester | 25 | Significant | Satisfactory | 1964 |
| 41 | Nemasket Park Dam | Plymouth | 23 | Significant | Fair | 1964 |
| 42 | Hop Brook Dam | Worcester | 23 | High | Satisfactory | 1962 |
| 43 | Barre Falls Dam - Dike 1 | Worcester | 23 | High | Not Available | 1958 |
| 44 | Framingham Reservoir No. 1 Dam | Middlesex | 22 | High | Fair | 1878 |
| 45 | Delaney Complex Dam | Middlesex | 22 | Significant | Satisfactory | 1967 |
| 46 | Neponset River Dam - Hyde Park | Norfolk | 22 | Significant | Poor | |
| 47 | Greenville Pond Dam | Worcester | 22 | High | Fair | 1912 |
| 48 | Cold Harbor Brook Dam | Worcester | 22 | High | Satisfactory | 1962 |
| 49 | Allen Reservoir Pl-566 Flood Control Dam | Norfolk | 21 | High | Satisfactory | 1981 |
| 50 | Pine Tree Brook Pl-566 Flood Control Dam | Norfolk | 21 | Significant | Satisfactory | 1955 |
| 51 | October Mountain Lake Dike | Berkshire | 20 | High | Satisfactory | 1985 |
| 52 | Falls Pond Dam | Bristol | 20 | High | Satisfactory | 1890 |
| 53 | Silk Mill Dam | Middlesex | 20 | Low | Fair | 1912 |
| 54 | George H. Nichols Multipurpose Dam | Worcester | 20 | High | Satisfactory | 1969 |
| 55 | Worcester Diversion Levee System | Worcester | 20 | Significant | Satisfactory | 1960 |
| 56 | Fisherville Pond Dam | Worcester | 19 | High | Poor | 1882 |
| 57 | Wrights Reservoir Dam | Worcester | 18 | High | Satisfactory | 1965 |
| 58 | Buffumville Dam - Pierpoint Meadow Pond Dike | Worcester | 18 | High | Not Available | 1958 |
| 59 | Indian Lake Dam | Worcester | 17 | Significant | Fair | 1920 |
| 60 | Talbot Mills Dam | Middlesex | 16 | Significant | Fair | 1828 |
| 61 | Barefoot Brook Dam | Middlesex | 16 | Significant | Satisfactory | 1962 |
| 62 | Upper Mystic Lake Dam | Middlesex | 16 | Significant | Satisfactory | 1860 |
| 63 | Mother Brook Diversion At Charles River | Norfolk | 16 | Significant | Satisfactory | 1959 |
| 64 | Rawson Hill Brook Dam | Worcester | 16 | Significant | Satisfactory | 1963 |
| 65 | Delaney Complex E Bolton Dam | Worcester | 16 | Low | Satisfactory | 1971 |
| 66 | Springfield Country Club Dam | Hampden | 15 | Significant | Satisfactory | 2000 |
| 67 | Smelt Brook Dam | Norfolk | 15 | High | Satisfactory | 1975 |
| 68 | Neponset River Dam - Lower Mills | Suffolk | 15 | Significant | Poor | |
| 69 | Wallace Pond Dam | Worcester | 15 | Low | Satisfactory | 1950 |
| 70 | Old Mill Pond Dam | Worcester | 15 | Significant | Satisfactory | 1800 |
| 71 | Conant Brook Dam - Dike | Hampden | 14 | High | Not Available | 1966 |
| 72 | South Street Pond Dam | Plymouth | 14 | Significant | Poor | |
| 73 | Whitin Pond Dam | Worcester | 14 | Significant | Poor | 1900 |
| 74 | Mill River Culvert And Tide Gate | Essex | 13 | Low | Fair | |
| 75 | Cochran Dam | Norfolk | 13 | Low | Fair | 1900 |
| 76 | Bolivar Pond Dam | Norfolk | 13 | Significant | Satisfactory | 2006 |
| 77 | Balch Pond Dam | Middlesex | 12 | Significant | Poor | |
| 78 | Westford Depot Dam | Middlesex | 12 | Significant | Fair | |
| 79 | Straits Pond Dam | Norfolk | 12 | Significant | Satisfactory | 1908 |
| 80 | Willow Street Bypass Dam | Norfolk | 12 | Low | Poor | |
| 81 | Revere Street Dam | Norfolk | 12 | Significant | Satisfactory | 1774 |
| 82 | Bear Brook Dam | Worcester | 12 | Significant | Fair | |
| 83 | Hayes Pond Dam | Berkshire | 11 | Low | Fair | 1840 |
| 84 | West Medway Dam | Norfolk | 11 | Low | Poor | 1850 |
| 85 | Factory Pond Dam | Plymouth | 11 | Significant | Satisfactory | 1943 |
| 86 | Hunts Pond Dam | Plymouth | 10 | Significant | Unsatisfactory | 1920 |
| 87 | Searles Pond Dam | Essex | 8 | Significant | Fair | 1979 |
| 88 | Wayside Pond Dam | Worcester | 8 | Significant | Unsatisfactory | 1964 |
| 89 | Old Shepard Pond Dam | Worcester | 7 | Low | Fair | |
| 90 | Wachusett Lake Dam | Worcester | 4 | Significant | Fair | 1905 |
| 91 | Balch Pond Dike | Middlesex | 3 | Significant | Poor |