Browse Dams
1,941 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,941 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 |
|---|---|---|---|---|---|---|---|
| Hamilton College Reservoir #4 Dam | New York | Oneida | 42 | Low | Not Rated | 1920 | Recreation |
| Stillwater Pond Dam | New York | Putnam | 42 | Low | Not Rated | 1939 | Water Supply |
| Conewango Creek Site 16a Dam | New York | Cattaraugus | 42 | High | Fair | 1970 | Flood Risk Reduction |
| Honk Falls Dam | New York | Ulster | 42 | High | Poor | 1898 | Recreation |
| Nanticoke Creek Site 9e Dam | New York | Broome | 42 | High | Not Rated | 1967 | Flood Risk Reduction |
| Winnisook Lake Dam | New York | Ulster | 42 | Low | Not Rated | — | Recreation |
| Little Falls Reservoir Dam | New York | Herkimer | 42 | Significant | Satisfactory | 1901 | Water Supply |
| Ischua Creek Watershed Dam #2 | New York | Cattaraugus | 42 | High | Satisfactory | 1961 | Flood Risk Reduction |
| Black River Pond Dam | New York | Rensselaer | 42 | High | Fair | 1935 | Recreation |
| Jerome Park Reservoir Dam | New York | Bronx | 42 | High | Satisfactory | 1906 | Water Supply |
| South Colton | New York | St. Lawrence | 42 | High | Satisfactory | 1954 | Hydroelectric |
| Pelton Pond Dam | New York | Putnam | 41 | Significant | Poor | 1939 | Other |
| Nanticoke Creek Site 8 Dam | New York | Broome | 41 | High | Satisfactory | 1970 | Flood Risk Reduction |
| Trenton - Power Intake | New York | Oneida | 41 | Significant | Satisfactory | 1983 | Hydroelectric |
| Waterville Upper Storage Reservoir Dam | New York | Oneida | 41 | Significant | Not Rated | 1953 | Water Supply |
| Chadwicks Dam | New York | Oneida | 41 | Low | Not Rated | — | Other |
| Conewango Creek Site 6 Dam | New York | Chautauqua | 41 | Significant | Not Rated | 1971 | Flood Risk Reduction |
| Port Jervis Reservoir #2 Dam | New York | Orange | 41 | High | Fair | 1880 | Water Supply |
| Mulford Dam | New York | Madison | 40 | Low | Not Rated | — | Recreation |
| Stewarts Landing Dam | New York | Fulton | 40 | Significant | Not Rated | 1923 | Recreation |
| Kingston Reservoir #2 Dam | New York | Ulster | 40 | Significant | Poor | 1910 | Recreation |
| Ilion Reservoir #1 Dam | New York | Herkimer | 40 | High | Poor | 1895 | Water Supply |
| Long Pond Dam | New York | Westchester | 40 | Significant | Poor | 1936 | Recreation |
| Lake Deforest Dam | New York | Rockland | 40 | High | Satisfactory | 1956 | Water Supply |
| Lock 33 Dam Erie Canal | New York | Monroe | 40 | High | Poor | 1908 | Hydroelectric |
| Canajoharie Reservoir Dam | New York | Fulton | 40 | Significant | Poor | 1948 | Water Supply |
| Robert Alcorn Dam | New York | Cayuga | 40 | Low | Not Rated | 1998 | Recreation |
| Cooper Lake Dam and West Dike | New York | Ulster | 40 | High | Satisfactory | 1800 | Water Supply |
| Vly Creek Reservoir Dike | New York | Albany | 40 | High | Satisfactory | 1957 | Water Supply |
| Northville Reservoir Dam | New York | Fulton | 40 | Low | Not Rated | 1929 | Recreation |
| Medina Aqueduct High Walls and Waste Weir Dam | New York | Orleans | 40 | High | Not Rated | — | Navigation |
| Green Haven Correctional Facility Dam | New York | Dutchess | 40 | High | Poor | 1939 | Fire Protection, Stock, Or ... |
| Springville Dam | New York | Erie | 40 | High | Fair | 1922 | Recreation |
| Lock 32 Dam Erie Canal | New York | Monroe | 40 | High | Poor | 1908 | Navigation |
| Theresa | New York | Jefferson | 40 | Low | Satisfactory | 1929 | Hydroelectric |
| Grassy Sprain Reservoir Dam | New York | Westchester | 40 | High | Satisfactory | 1876 | Recreation |
| Upper Warwick Dam | New York | Orange | 40 | Low | Fair | 1912 | Water Supply |
| Tillson Lake Dam | New York | Ulster | 39 | High | Poor | 1930 | Recreation |
| Conewango Creek Site 13 Dam | New York | Cattaraugus | 39 | Significant | Not Rated | 1982 | Flood Risk Reduction |
| Norwich Ymca Recreation Pond Dam | New York | Chenango | 39 | Significant | Poor | 1970 | Recreation |
| Normanskill | New York | Albany | 39 | High | Fair | 1916 | Hydroelectric |
| Peck Lake Dam | New York | Fulton | 39 | High | Poor | 1910 | Hydroelectric |
| Turkey Hill Dam | New York | Orange | 39 | Low | Not Rated | 1933 | Recreation |
| Johnsonville | New York | Rensselaer | 39 | High | Satisfactory | 1909 | Hydroelectric |
| Punch Bowl Dam | New York | Schuyler | 39 | High | Fair | 1936 | Recreation |
| Pelto Dam | New York | Tioga | 39 | High | Poor | 1955 | Flood Risk Reduction |
| Meizinger Pond Dam | New York | Columbia | 38 | Low | Not Rated | — | Recreation |
| Thorne Dam | New York | Dutchess | 38 | Significant | Fair | 1905 | Recreation |
| Ischua Creek Watershed Dam #3 | New York | Cattaraugus | 38 | Significant | Satisfactory | 1966 | Flood Risk Reduction |
| Benson Mines Plant Dam | New York | St. Lawrence | 38 | Low | Not Rated | — | Irrigation |
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.