Browse Dams
3,540 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 3,540 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 |
|---|---|---|---|---|---|---|---|
| Hop Brook Dam | Connecticut | New Haven | 89 | High | Not Available | 1968 | Flood Risk Reduction |
| Minidoka Dam | Idaho | Minidoka | 88 | High | Not Available | 1906 | Fish and Wildlife Pond |
| Mariposa Dam | California | Mariposa | 88 | High | Not Available | 1948 | Flood Risk Reduction |
| Millwood Dam | Arkansas | Little River | 88 | High | Not Available | 1966 | Flood Risk Reduction |
| Williamson Energy/Pond Creek Mine/Refuse Disposal Facility | Illinois | Williamson | 88 | High | Not Available | — | Other |
| O'Neill Forebay Dam | California | Merced | 88 | High | Not Available | 1967 | Hydroelectric |
| Union City Dam | Pennsylvania | Erie | 88 | High | Not Available | 1971 | Flood Risk Reduction |
| Gerber Dam | Oregon | Klamath | 88 | High | Not Available | 1925 | Irrigation |
| Brea Dam | California | Orange | 87 | High | Not Available | 1942 | Flood Risk Reduction |
| John Redmond Dam - Hartford Levee | Kansas | Coffey | 87 | High | Not Available | 1964 | Flood Risk Reduction |
| Box Butte Dam | Nebraska | Dawes | 87 | High | Not Available | 1946 | Flood Risk Reduction |
| John Redmond Dam | Kansas | Coffey | 87 | High | Not Available | 1964 | Flood Risk Reduction |
| Nimbus Dam | California | Sacramento | 87 | High | Not Available | 1955 | Fish and Wildlife Pond |
| Wills Creek Dam | Ohio | Coshocton | 87 | High | Not Available | 1936 | Flood Risk Reduction |
| Buckhorn Dam | California | Trinity | 87 | High | Not Available | 1991 | |
| Navarro Mills Dam | Texas | Navarro | 87 | High | Not Available | 1963 | Flood Risk Reduction |
| Bolivar Dam | Ohio | Stark | 87 | High | Not Available | 1938 | Flood Risk Reduction |
| Wehrspann Dam | Nebraska | Sarpy | 87 | High | Not Available | 1983 | Flood Risk Reduction |
| Brea Dam - Saddle Dike 1 | California | Orange | 87 | High | Not Available | 1942 | Flood Risk Reduction |
| Flatiron Dam | Colorado | Larimer | 86 | High | Not Available | 1953 | Hydroelectric |
| Proctor Dam | Texas | Comanche | 86 | High | Not Available | 1964 | Flood Risk Reduction |
| Agate Dam | Oregon | Jackson | 86 | High | Not Available | 1965 | Irrigation |
| Beech Fork Dam | West Virginia | Wayne | 86 | High | Not Available | 1976 | Flood Risk Reduction |
| Slurry Lake 04i | Kentucky | Union | 86 | High | Not Available | — | Tailings |
| Sugar Camp/Mine 1/Coal Refuse Disposal 1 Dam | Illinois | Franklin | 86 | High | Not Available | — | Tailings |
| Tallaseehatchee Creek W/S Dam Site 4 | Alabama | Talladega | 86 | High | Not Available | 1982 | Flood Risk Reduction |
| Lake Thunderbird Dam | Illinois | Putnam | 86 | High | Not Available | 1970 | Recreation |
| Gordon Plant | Georgia | Wilkinson | 85 | Significant | Not Available | — | Tailings |
| Big Sandy Dam | Wyoming | Sweetwater | 85 | High | Not Available | 1952 | Flood Risk Reduction |
| Lake Petersburg Dam | Illinois | Menard | 85 | High | Not Available | 1961 | Recreation |
| Cherokee Dam - Saddle Dam No. 1 | Tennessee | Jefferson | 85 | High | Not Available | 1941 | Flood Risk Reduction |
| Conant Brook Dam | Massachusetts | Hampden | 85 | High | Not Available | 1966 | Flood Risk Reduction |
| Beaver Creek Dam | Virginia | Bristol | 85 | High | Not Available | 1965 | Flood Risk Reduction |
| Platoro Dike | Colorado | Conejos | 85 | High | Not Available | 1951 | Flood Risk Reduction |
| Imperial Diversion Dam | California | Imperial | 85 | High | Not Available | 1938 | Irrigation |
| Upper Bear Creek Dam | Alabama | Marion | 85 | High | Not Available | 1978 | Flood Risk Reduction |
| Jackson Lake Dam | Wyoming | Teton | 84 | High | Not Available | 1911 | Flood Risk Reduction |
| Webbers Falls Lock and Dam | Oklahoma | Muskogee | 84 | Significant | Not Available | 1970 | Navigation |
| Tom Jenkins Dam | Ohio | Athens | 84 | High | Not Available | 1950 | Flood Risk Reduction |
| Wildwood Lake Dam | Illinois | Marshall | 84 | High | Not Available | 1969 | Recreation |
| Big Creek Barrier Dam | Iowa | Polk | 84 | High | Not Available | 1974 | Flood Risk Reduction |
| East Fork Lake Dam | Illinois | Richland | 84 | High | Not Available | 1972 | Recreation |
| Clear Creek Dam | Washington | Yakima | 84 | High | Not Available | 1914 | Fish and Wildlife Pond |
| Michael J. Kirwan Dam | Ohio | Portage | 83 | High | Not Available | 1966 | Flood Risk Reduction |
| Harvey Run No. 2 Slurry Impoundment | West Virginia | Monongalia | 83 | High | Not Available | — | Tailings |
| Surry Mountain Dam | New Hampshire | Cheshire | 83 | High | Not Available | 1941 | Flood Risk Reduction |
| Shadehill Dike 2 | South Dakota | Perkins | 83 | High | Not Available | 1951 | Flood Risk Reduction |
| Sardis Dam | Oklahoma | Pushmataha | 83 | High | Not Available | 1982 | Flood Risk Reduction |
| Big Hill Dam | Kansas | Labette | 83 | High | Not Available | 1981 | Flood Risk Reduction |
| York Indian Rock Dam | Pennsylvania | York | 83 | High | Not Available | 1942 | Flood Risk Reduction |
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.