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 |
|---|---|---|---|---|---|---|---|
| Mount Morris Dam | New York | Livingston | 249 | High | Not Available | 1952 | Flood Risk Reduction |
| Ashokan Dam | New York | Ulster | 213 | High | Satisfactory | 1916 | Water Supply |
| Downsville Dam | New York | Delaware | 204 | High | Satisfactory | 1954 | Water Supply |
| Merriman Dam | New York | Ulster | 195 | High | Satisfactory | 1945 | Water Supply |
| Neversink Reservoir Dam | New York | Sullivan | 190 | High | Satisfactory | 1953 | Water Supply |
| Gilboa Dam | New York | Schoharie | 183 | High | Satisfactory | 1926 | Water Supply |
| Cannonsville Dam | New York | Delaware | 175 | High | Satisfactory | 1964 | Water Supply |
| New Croton Reservoir Dam | New York | Westchester | 174 | High | Satisfactory | 1906 | Water Supply |
| Blenheim - Gilboa Upper | New York | Schoharie | 170 | High | Satisfactory | 1974 | Hydroelectric |
| Kensico Dam | New York | Westchester | 168 | High | Satisfactory | 1916 | Water Supply |
| Robert Moses - St. Lawrence | New York | St. Lawrence | 167 | High | Satisfactory | 1958 | Hydroelectric |
| Blenheim - Gilboa Lower | New York | Schoharie | 165 | High | Satisfactory | 1974 | Hydroelectric |
| Lewiston | New York | Niagara | 155 | High | Satisfactory | 1963 | Hydroelectric |
| Spier Falls | New York | Warren | 146 | High | Satisfactory | 1903 | Hydroelectric |
| Caneadea Dam | New York | Allegany | 140 | High | Fair | 1929 | Recreation |
| South Forebay Dike | New York | St. Lawrence | 136 | High | Satisfactory | 1958 | Hydroelectric |
| Swinging Bridge | New York | Sullivan | 135 | High | Fair | 1930 | Hydroelectric |
| Long Sault | New York | St. Lawrence | 132 | High | Satisfactory | 1958 | Hydroelectric |
| Arkport Dam | New York | Steuben | 131 | High | Not Available | 1940 | Flood Risk Reduction |
| East Sidney Dam | New York | Delaware | 130 | High | Not Available | 1950 | Flood Risk Reduction |
| Cross River Dam | New York | Westchester | 126 | High | Satisfactory | 1908 | Water Supply |
| Inghams Dam | New York | Fulton | 125 | High | Poor | 1911 | Hydroelectric |
| Lewiston Reservoir Dike | New York | Niagara | 119 | High | Satisfactory | 1963 | Hydroelectric |
| Massena Intake | New York | St. Lawrence | 118 | High | Satisfactory | 1958 | Hydroelectric |
| Soft Maple Diversion | New York | Lewis | 115 | High | Satisfactory | 1926 | Hydroelectric |
| Croton Falls Dam | New York | Putnam | 113 | High | Satisfactory | 1910 | Water Supply |
| Stewarts Bridge | New York | Saratoga | 113 | High | Satisfactory | 1952 | Hydroelectric |
| Titicus Dam | New York | Westchester | 109 | High | Satisfactory | 1895 | Water Supply |
| Sturgeon Pool Dam | New York | Ulster | 109 | High | Satisfactory | 1922 | Hydroelectric |
| Delta Dam | New York | Oneida | 106 | High | Fair | 1912 | Navigation |
| Windsor Park Dam | New York | Erie | 106 | Low | Not Rated | 2006 | Other |
| Toronto | New York | Sullivan | 103 | High | Unsatisfactory | 1926 | Hydroelectric |
| Rio | New York | Sullivan | 101 | High | Fair | 1927 | Hydroelectric |
| Conklingville | New York | Saratoga | 100 | High | Satisfactory | 1930 | Hydroelectric |
| Soft Maple Terminal | New York | Lewis | 100 | High | Satisfactory | 1926 | Hydroelectric |
| Mill River Dam | New York | Westchester | 100 | High | Satisfactory | 1966 | Water Supply |
| Chaumont Swamp Dam | New York | St. Lawrence | 100 | Low | Not Rated | 1954 | Irrigation |
| Robert Moses - Niagara | New York | Niagara | 97 | High | Satisfactory | 1963 | Hydroelectric |
| Nys Atomic Development Dam #1 | New York | Cattaraugus | 95 | Low | Not Rated | 1963 | Water Supply |
| Whitney Point Dam | New York | Broome | 95 | High | Not Available | 1942 | Flood Risk Reduction |
| Middle Branch Dam | New York | Putnam | 95 | High | Satisfactory | 1878 | Water Supply |
| Moshier | New York | Herkimer | 93 | High | Satisfactory | 1930 | Hydroelectric |
| Oak Orchard Creek Dam | New York | Orleans | 90 | High | Satisfactory | 1917 | Hydroelectric |
| Hillview Reservoir Dam | New York | Westchester | 90 | High | Satisfactory | 1915 | Water Supply |
| Almond Dam | New York | Steuben | 90 | High | Not Available | 1949 | Flood Risk Reduction |
| Mill Brook Site 2 Dam | New York | Chenango | 87 | High | Poor | 1986 | Flood Risk Reduction |
| West Branch Dam | New York | Putnam | 85 | High | Satisfactory | 1895 | Water Supply |
| Rome City Dam | New York | Lewis | 85 | High | Satisfactory | 1958 | Water Supply |
| Amawalk Dam | New York | Westchester | 85 | High | Satisfactory | 1897 | Water Supply |
| Butler Storage Reservoir Dam | New York | Warren | 83 | High | Satisfactory | 1909 | 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.