Browse Dams
1,340 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,340 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Eclipse Dam | Massachusetts | Berkshire | 52 | High | Fair | 1890 | Flood Risk Reduction |
| Lower Van Horn Reservoir Dam | Massachusetts | Hampden | 52 | High | Satisfactory | 1848 | Recreation |
| Red Bridge | Massachusetts | Hampden | 51 | High | Fair | 1901 | Hydroelectric |
| Bickford Pond Dam | Massachusetts | Worcester | 51 | High | Fair | 1971 | Water Supply |
| Windsor Reservoir Dam | Massachusetts | Berkshire | 51 | High | Satisfactory | 1865 | Water Supply |
| White Reservoir Dam | Massachusetts | Hampshire | 51 | Significant | Fair | 1912 | |
| Perley Brook Reservoir Dam | Massachusetts | Worcester | 50 | High | Satisfactory | 1962 | Water Supply |
| Highland Commons Pond B Dam & Dike | Massachusetts | Worcester | 50 | Significant | Satisfactory | 2010 | Flood Risk Reduction |
| Bear Swamp - East Dike | Massachusetts | Franklin | 50 | High | Satisfactory | 1974 | Hydroelectric |
| Mill Pond Dam | Massachusetts | Middlesex | 50 | High | Satisfactory | 1973 | Water Supply |
| Birch Hill Dam | Massachusetts | Worcester | 49 | High | Not Available | 1942 | Flood Risk Reduction |
| Birch Hill Dam - Winchenden Dike | Massachusetts | Worcester | 49 | High | Not Available | 1942 | Flood Risk Reduction |
| Somerset Reservoir Dam | Massachusetts | Bristol | 48 | High | Fair | 1965 | Water Supply |
| Fells Reservoir Dam No. 1 (Extensively Filled D/S Area) | Massachusetts | Middlesex | 48 | Low | Satisfactory | — | Water Supply |
| Barre Falls Dam - Dike 3 | Massachusetts | Worcester | 48 | High | Not Available | 1958 | Flood Risk Reduction |
| Deerfield No. 4 | Massachusetts | Franklin | 48 | Low | Satisfactory | 1912 | Hydroelectric |
| West Hill Dam - Dike D | Massachusetts | Worcester | 48 | High | Not Available | 1961 | Flood Risk Reduction |
| Fells Reservoir Dam No. 8 | Massachusetts | Middlesex | 48 | High | Satisfactory | 1898 | Water Supply |
| West Hill Dam | Massachusetts | Worcester | 48 | High | Not Available | 1961 | Flood Risk Reduction |
| Powdermill Brook Pl-566 Flood Control Dam | Massachusetts | Hampden | 48 | High | Fair | 1962 | Flood Risk Reduction |
| Holden Reservoir Dam No. 1 | Massachusetts | Worcester | 47 | High | Fair | 1883 | Water Supply |
| Chicopee Reservoir Dam | Massachusetts | Hampden | 47 | High | Fair | 1927 | Recreation |
| Mare Meadow Reservoir Dam | Massachusetts | Worcester | 47 | High | Fair | 1955 | Water Supply |
| Lester G. Ross Dam | Massachusetts | Worcester | 46 | High | Satisfactory | 1974 | Flood Risk Reduction |
| Littleville Dam - Saddle Dike | Massachusetts | Hampshire | 46 | High | Not Available | 1965 | Flood Risk Reduction |
| South Reservoir Dam | Massachusetts | Middlesex | 45 | High | Poor | 1882 | Water Supply |
| Wachusett Reservoir South Dike | Massachusetts | Worcester | 45 | High | Satisfactory | 1906 | Water Supply |
| Quinapoxet Reservoir Dam | Massachusetts | Worcester | 45 | High | Satisfactory | 1953 | Water Supply |
| Weston Reservoir Dam | Massachusetts | Middlesex | 45 | High | Satisfactory | — | Water Supply |
| Breeds Pond Outlet Dam No. 5 | Massachusetts | Essex | 44 | High | Fair | 1870 | Water Supply |
| Goose Cove Northwest Dike | Massachusetts | Essex | 44 | High | Fair | 1963 | Water Supply |
| Walden Pond Outlet Dam | Massachusetts | Essex | 43 | High | Fair | 1890 | Water Supply |
| Haskell Pond Dam | Massachusetts | Essex | 43 | High | Poor | 1903 | Water Supply |
| Babson Reservoir Dam | Massachusetts | Essex | 43 | High | Satisfactory | 1930 | Water Supply |
| Norumbega Reservoir Dam No. 1 | Massachusetts | Middlesex | 42 | High | Fair | 1940 | Water Supply |
| Echo Lake Dam | Massachusetts | Middlesex | 41 | High | Satisfactory | 1881 | Water Supply |
| Westfield Reservoir Dam | Massachusetts | Hampden | 41 | High | Fair | 1874 | |
| Cherry Valley Dam | Massachusetts | Hampden | 41 | High | Fair | 1877 | Water Supply |
| Overlook Reservoir Dam | Massachusetts | Worcester | 41 | High | Poor | 1871 | |
| Hill Reservoir Dam | Massachusetts | Hampshire | 41 | Significant | Fair | 1934 | Water Supply |
| Sandwash Reservoir Dam | Massachusetts | Berkshire | 41 | High | Poor | 1936 | Water Supply |
| Scott Reservoir Dam | Massachusetts | Worcester | 40 | High | Poor | 1875 | Water Supply |
| Mill River Dam | Massachusetts | Hampshire | 40 | Significant | Satisfactory | 1939 | Flood Risk Reduction |
| Northfield Mt. - Northwest Dike | Massachusetts | Franklin | 40 | High | Satisfactory | 1973 | Hydroelectric |
| Abbey Lake Dam | Massachusetts | Berkshire | 40 | High | Satisfactory | 1967 | Flood Risk Reduction |
| Mill Pond North Dike | Massachusetts | Middlesex | 40 | Significant | Satisfactory | 1973 | Water Supply |
| Mount Williams Reservoir Dam & Dike | Massachusetts | Berkshire | 40 | High | Poor | 1914 | Water Supply |
| Copicut Reservoir Dam | Massachusetts | Bristol | 40 | High | Fair | 1971 | Water Supply |
| Crocker Pond Dam | Massachusetts | Worcester | 39 | High | Satisfactory | 1933 | Hydroelectric |
| West Parish Filter No. 3 Dam | Massachusetts | Hampden | 39 | High | Fair | 1910 | Water Supply |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.