Browse Dams
1,356 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,356 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 |
|---|---|---|---|---|---|---|---|
| Thousand Acre Lake Dam | Massachusetts | Berkshire | 32 | High | Fair | 1960 | Flood Risk Reduction |
| Deerfield No. 5 | Massachusetts | Franklin | 32 | Low | Satisfactory | 1992 | Hydroelectric |
| Otis Reservoir Dam | Massachusetts | Berkshire | 32 | High | Satisfactory | 1888 | Recreation |
| Stiles Lake Dam | Massachusetts | Worcester | 32 | High | Satisfactory | 1865 | Recreation |
| Chimney Corners Pond Dam | Massachusetts | Berkshire | 32 | Significant | Satisfactory | 1961 | Recreation |
| Mountain Lake Dam | Massachusetts | Hampden | 32 | High | Satisfactory | 1923 | Flood Risk Reduction |
| Muddy Cove Pond Dam | Massachusetts | Bristol | 32 | High | Poor | 1950 | |
| Stony Brook Reservoir Dam | Massachusetts | Middlesex | 32 | High | Satisfactory | 1887 | Water Supply |
| Cooks Dam | Massachusetts | Hampshire | 32 | Significant | Fair | - | Recreation |
| Simonds Pond Dam | Massachusetts | Worcester | 32 | Significant | Satisfactory | - | Water Supply |
| East Branch Swift Regulating Dam | Massachusetts | Worcester | 32 | Low | Fair | - | Water Supply |
| Carpenter Reservoir Dam | Massachusetts | Worcester | 32 | Significant | Satisfactory | 1888 | Water Supply |
| Williamstown Reservoir Dam | Massachusetts | Berkshire | 32 | High | Satisfactory | 1898 | Water Supply |
| Westminster Reservoir Dam | Massachusetts | Worcester | 31 | High | Fair | 1909 | Other |
| South Silver Dam | Massachusetts | Berkshire | 31 | High | Satisfactory | 1967 | Flood Risk Reduction |
| Reservoir No. 5 Dam | Massachusetts | Worcester | 31 | Low | Satisfactory | 1900 | Water Supply |
| Pecks Lower Pond Dam | Massachusetts | Berkshire | 31 | Significant | Unsatisfactory | 1877 | |
| Upper Van Horn Reservoir Dam | Massachusetts | Hampden | 31 | Significant | Poor | 1848 | Recreation |
| Chartpak Dam | Massachusetts | Hampshire | 31 | Significant | Satisfactory | - | |
| Factory Hollow Dam | Massachusetts | Hampshire | 31 | High | Fair | 1895 | Recreation |
| Cambridge Reservoir Dam | Massachusetts | Middlesex | 31 | High | Satisfactory | 1897 | Water Supply |
| Horse Shoe Regulating Dam | Massachusetts | Franklin | 30 | Low | Satisfactory | 1938 | Water Supply |
| Holyoke - Overflow No. 2 | Massachusetts | Hampden | 30 | High | Satisfactory | 1860 | Hydroelectric |
| West Parish Filter No. 2 Dam | Massachusetts | Hampden | 30 | Significant | Poor | 1910 | Water Supply |
| Stevens Pond Dam | Massachusetts | Worcester | 30 | High | Poor | 1864 | Recreation |
| Holyoke - Overflow No. 1 | Massachusetts | Hampden | 30 | High | Satisfactory | 1850 | Hydroelectric |
| Indian Orchard | Massachusetts | Hampden | 30 | High | Satisfactory | 1846 | Hydroelectric |
| Provin Mountain Reservoir Dam | Massachusetts | Hampden | 30 | High | Satisfactory | 1910 | Water Supply |
| Northfield Mt. - West Dike | Massachusetts | Franklin | 30 | High | Satisfactory | 1973 | Hydroelectric |
| Reservoir No. 4 Dam | Massachusetts | Worcester | 30 | Significant | Satisfactory | 1965 | Water Supply |
| Stevens Paper Company Lower Dam | Massachusetts | Hampden | 30 | Low | Poor | 1957 | |
| Breeds Pond Lantern Rock Dike No. 4 | Massachusetts | Essex | 30 | High | Fair | 1914 | Water Supply |
| Glendale | Massachusetts | Berkshire | 30 | Low | Satisfactory | 1906 | Hydroelectric |
| South Deerfield Water Supply Dam | Massachusetts | Franklin | 30 | Significant | Fair | - | Water Supply |
| Mountain Street Reservoir Dikes | Massachusetts | Hampshire | 30 | Low | Poor | 1905 | Water Supply |
| Russell | Massachusetts | Hampden | 30 | Low | Satisfactory | 1905 | Hydroelectric |
| Glen Echo Lake Dam | Massachusetts | Worcester | 30 | High | Satisfactory | 1956 | Recreation |
| Newton Reservoir Dam | Massachusetts | Worcester | 30 | Low | Fair | 1903 | Recreation |
| Indian Hill Reservoir Dam and Dikes | Massachusetts | Essex | 30 | Low | Fair | 1981 | Water Supply |
| Hodges Village Dam - Dikes 2, 3 and 4 | Massachusetts | Worcester | 30 | High | Not Available | 1959 | Flood Risk Reduction |
| Hodges Village Dam - Dike 1 | Massachusetts | Worcester | 30 | High | Not Available | 1959 | Flood Risk Reduction |
| Holyoke Dam | Massachusetts | Hampshire | 30 | High | Satisfactory | 1900 | Hydroelectric |
| Eddy Pond Dam | Massachusetts | Worcester | 29 | High | Fair | 1920 | Recreation |
| Belmont Reservoir Dam | Massachusetts | Berkshire | 29 | High | Fair | 1889 | Water Supply |
| Paradise Pond Dam | Massachusetts | Hampshire | 29 | High | Satisfactory | 1850 | Recreation |
| Freeman Lake Dam | Massachusetts | Middlesex | 29 | Significant | Satisfactory | 1976 | Recreation |
| Ford Dam | Massachusetts | Middlesex | 29 | Significant | - | - | |
| Deerfield No. 5 - Dunbar | Massachusetts | Berkshire | 29 | Low | Satisfactory | 1993 | Hydroelectric |
| Leaping Well Reservoir Dam | Massachusetts | Hampshire | 29 | High | Satisfactory | 1890 | Recreation |
| Bassett Brook Reservoir Dam | Massachusetts | Berkshire | 29 | Significant | Satisfactory | 1967 | 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.