Browse Dams
3,532 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 3,532 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 |
|---|---|---|---|---|---|---|---|
| Ortega Dam | California | Santa Barbara | 131 | High | Not Available | 1956 | Water Supply |
| Arkport Dam | New York | Steuben | 131 | High | Not Available | 1940 | Flood Risk Reduction |
| Curwensville Dam | Pennsylvania | Clearfield | 131 | High | Not Available | 1965 | Flood Risk Reduction |
| Black Rock Dam | Connecticut | Litchfield | 130 | High | Not Available | 1971 | Flood Risk Reduction |
| Left Abutment Slurry Impoundment | West Virginia | Wayne | 130 | High | Not Available | - | Tailings |
| Rattlesnake Dam | Colorado | Larimer | 130 | High | Not Available | 1952 | Irrigation |
| East Sidney Dam | New York | Delaware | 130 | High | Not Available | 1950 | Flood Risk Reduction |
| Cold Brook Dam | South Dakota | Fall River | 130 | High | Not Available | 1953 | Flood Risk Reduction |
| Roark Branch Fresh Water Dam | Kentucky | Leslie | 130 | High | Not Available | - | Water Supply |
| Pinto Dam | Washington | Grant | 130 | High | Not Available | 1948 | Flood Risk Reduction |
| Belleville Locks and Dam | West Virginia | Wood | 130 | Significant | Not Available | 1968 | Navigation |
| O.C. Fisher Dam | Texas | Tom Green | 130 | High | Not Available | 1952 | Flood Risk Reduction |
| Sam Rayburn Dam | Texas | Jasper | 130 | High | Not Available | 1965 | Flood Risk Reduction |
| Chickamauga Dam | Tennessee | Hamilton | 129 | High | Not Available | 1940 | Flood Risk Reduction |
| Little Wood River Dam | Idaho | Blaine | 129 | High | Not Available | 1939 | Irrigation |
| Tellico Dam | Tennessee | Loudon | 129 | High | Not Available | 1979 | Flood Risk Reduction |
| St. Stephen Powerhouse Dam | South Carolina | Berkeley | 128 | High | Not Available | 1985 | Navigation |
| Keechelus Dam | Washington | Kittitas | 128 | High | Not Available | 1917 | Flood Risk Reduction |
| Eau Galle Dam | Wisconsin | Pierce | 127 | High | Not Available | 1968 | Flood Risk Reduction |
| Willow Creek Bor CO Dam | Colorado | Grand | 127 | High | Not Available | 1953 | Irrigation |
| Willow Creek Forebay Dam | Colorado | Grand | 127 | Low | Not Available | 1953 | |
| Merritt Dam | Nebraska | Cherry | 126 | High | Not Available | 1964 | Irrigation |
| Red Willow Dam | Nebraska | Frontier | 126 | High | Not Available | 1962 | Flood Risk Reduction |
| Townshend Dam | Vermont | Windham | 126 | High | Not Available | 1961 | Flood Risk Reduction |
| Foster Dam | Oregon | Linn | 126 | High | Not Available | 1967 | Flood Risk Reduction |
| Cheney Dam | Kansas | Sedgwick | 126 | High | Not Available | 1965 | Flood Risk Reduction |
| Kaw Dam | Oklahoma | Osage | 125 | High | Not Available | 1976 | Flood Risk Reduction |
| 2 West | Arizona | Graham | 125 | Low | Not Available | - | Tailings |
| Center Hill Dam | Tennessee | DeKalb | 125 | High | Not Available | 1951 | Flood Risk Reduction |
| Scofield Dam | Utah | Carbon | 125 | High | Not Available | 1946 | Irrigation |
| Longview Dam | Missouri | Jackson | 125 | High | Not Available | 1985 | Flood Risk Reduction |
| Fort Loudoun Dam | Tennessee | Loudon | 125 | High | Not Available | 1943 | Flood Risk Reduction |
| Saylorville Dam | Iowa | Polk | 125 | High | Not Available | 1975 | Flood Risk Reduction |
| Pine Creek Dam | Oklahoma | McCurtain | 124 | High | Not Available | 1969 | Flood Risk Reduction |
| Melvern Dam | Kansas | Osage | 123 | High | Not Available | 1972 | Flood Risk Reduction |
| Duck Creek Station Dams | Illinois | Fulton | 123 | High | Not Available | 1975 | Other |
| Cottonwood Springs Dam | South Dakota | Fall River | 123 | High | Not Available | 1969 | Flood Risk Reduction |
| Dry Falls Dam | Washington | Grant | 123 | High | Not Available | 1949 | Flood Risk Reduction |
| Belle Fourche Dam | South Dakota | Butte | 122 | High | Not Available | 1911 | Irrigation |
| Fort Cobb Dam | Oklahoma | Caddo | 122 | High | Not Available | 1959 | Flood Risk Reduction |
| Joe D. Waggonner, Jr. Lock and Dam | Louisiana | Caddo | 122 | Significant | Not Available | 1985 | Navigation |
| Lewellyn Amd Impoundment | West Virginia | Marion | 122 | High | Not Available | - | Other |
| North Fork of Pound Dam | Virginia | Wise | 122 | High | Not Available | 1966 | Flood Risk Reduction |
| Hammond Dam | Pennsylvania | Tioga | 122 | High | Not Available | 1978 | Flood Risk Reduction |
| Perry Dam | Kansas | Jefferson | 121 | High | Not Available | 1966 | Flood Risk Reduction |
| Keystone Dam | Oklahoma | Tulsa | 121 | High | Not Available | 1964 | Flood Risk Reduction |
| Bully Creek Dam | Oregon | Malheur | 121 | High | Not Available | 1963 | Flood Risk Reduction |
| Loyalhanna Dam | Pennsylvania | Westmoreland | 120 | High | Not Available | 1942 | Flood Risk Reduction |
| Martins Fork Dam | Kentucky | Harlan | 120 | High | Not Available | 1978 | Flood Risk Reduction |
| Grayson Dam | Kentucky | Carter | 120 | High | Not Available | 1968 | 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.