Browse Dams
7,732 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 7,732 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 |
|---|---|---|---|---|---|---|---|
| Hewitt Dam | Montana | Phillips | 10 | Low | Poor | 1938 | Fish and Wildlife Pond |
| M Tucker Laffitte Dam | South Carolina | Hampton | 10 | Low | Poor | 1955 | Recreation |
| Lake Mattawa South Dam | Massachusetts | Franklin | 10 | Significant | Poor | 1893 | Recreation |
| Currier Pond Dam | New Hampshire | Strafford | 10 | Low | Poor | 1963 | Recreation |
| Gumpas Pond Dam | New Hampshire | Hillsborough | 10 | High | Poor | 1900 | Recreation |
| Lake Boon Dam | Massachusetts | Middlesex | 10 | Significant | Poor | 1847 | Recreation |
| Silver Lake North Dike | Vermont | Franklin | 10 | Low | Poor | 1895 | Water Supply |
| Price Lake | Indiana | Kosciusko | 10 | Low | Poor | 1983 | Recreation |
| Lake Manitou Dam | Indiana | Fulton | 10 | Significant | Poor | 1827 | Recreation |
| Crystal Lake Dam | New Jersey | Bergen | 10 | Low | Poor | 1939 | Recreation |
| South Middleton Dam | Massachusetts | Essex | 10 | Significant | Poor | — | |
| Huckins Mill Pond Dam | New Hampshire | Carroll | 10 | Low | Poor | 1947 | Recreation |
| Mudd Pond | Vermont | Rutland | 10 | Low | Poor | 1900 | Recreation |
| Russian River No. 1 | California | Sonoma | 10 | Low | Poor | 1963 | Water Supply |
| Smeallie Dam | New York | Montgomery | 10 | Significant | Poor | 1974 | Irrigation |
| Agfa Lake Dam | New York | Broome | 10 | Significant | Poor | — | Recreation |
| Merriewold Lake Dam | New York | Sullivan | 10 | Significant | Poor | 1914 | Recreation |
| Coon Brook Bog Dam | New Hampshire | Coos | 10 | Low | Poor | 1947 | Recreation |
| Camp Delaware Dam | Connecticut | Litchfield | 10 | Significant | Poor | — | Recreation |
| Estlick F Wetland | Minnesota | Otter Tail | 10 | Low | Poor | 1970 | Recreation |
| Henderson Drain Detention | Wyoming | Laramie | 10 | Low | Poor | 1987 | Flood Risk Reduction |
| Spring Lake | Pennsylvania | Susquehanna | 10 | High | Poor | 1919 | Recreation |
| Martin Dam | South Carolina | Horry | 10 | Low | Poor | 1950 | Recreation |
| Smith Pond Dam | Connecticut | Litchfield | 10 | Significant | Poor | 1927 | Recreation |
| Rock Ridge Lake Dam | New Jersey | Morris | 10 | Significant | Poor | 1949 | Recreation |
| Seeley Pond Dam | Connecticut | Fairfield | 10 | Significant | Poor | — | Recreation |
| Coffin Pond Dam | New Hampshire | Grafton | 10 | Low | Poor | 1960 | Recreation |
| Byron Pond Dam | New York | Genesee | 10 | Significant | Poor | 1925 | Other |
| Wood River Junction | Rhode Island | Washington | 10 | Significant | Poor | 1860 | Recreation |
| Waterville Reservoir Dam #2 | New York | Oneida | 10 | Significant | Poor | 1917 | Water Supply |
| Clearwater Pond | Maine | Franklin | 10 | Significant | Poor | — | Flood Risk Reduction |
| Medicine Lake Dam No. 12 | Montana | Sheridan | 10 | Low | Poor | 1935 | Fish and Wildlife Pond |
| Honeybee Dam | Nevada | Clark | 10 | Significant | Poor | 1956 | Fish and Wildlife Pond |
| Longville Lake | Louisiana | Beauregard | 10 | High | Poor | 1950 | Recreation |
| Kennington Pond Dam | South Carolina | Lancaster | 10 | Low | Poor | 1958 | Recreation |
| Watson Pond Dam | Massachusetts | Berkshire | 10 | Low | Poor | — | Recreation |
| Taylor Pond Dam 1 | South Carolina | Calhoun | 10 | Low | Poor | 1950 | Recreation |
| Richmondville Water Supply Dam #1 | New York | Schoharie | 10 | Significant | Poor | 1916 | Water Supply |
| Turcos Dam | New York | Sullivan | 10 | Significant | Poor | 1931 | Recreation |
| Staatsburg Water CO Dam | New York | Dutchess | 10 | Significant | Poor | 1908 | Recreation |
| Westchester Lake Dam | New York | Westchester | 10 | High | Poor | 1920 | Recreation |
| Welch Dam | Michigan | Berrien | 10 | Low | Poor | — | |
| Upper Snow Dam | Washington | Chelan | 10 | Low | Poor | 1939 | Water Supply |
| Little Hill Pond | Minnesota | Aitkin | 10 | Low | Poor | 1978 | Fish and Wildlife Pond |
| Nightingale Pond Dam | South Carolina | Georgetown | 10 | Low | Poor | 1900 | Recreation |
| East Creek Site No. 2 | Vermont | Addison | 10 | Low | Poor | 1964 | Fish and Wildlife Pond |
| Nassau Lake Dam | New York | Rensselaer | 10 | Significant | Poor | 1792 | Recreation |
| Johnsonville Club Dam | South Carolina | Florence | 10 | Low | Poor | 1960 | Recreation |
| Turkey Hill Reservoir Dam & Dike | Connecticut | Middlesex | 10 | Significant | Poor | — | Water Supply |
| Griswold Pond #2 Dam | Connecticut | Middlesex | 10 | Significant | Poor | — | Recreation |
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.