Browse Dams
16,901 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 16,901 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 |
|---|---|---|---|---|---|---|---|
| The Ohio Valley Coal Slurry Disposal Dam | Ohio | Belmont | 275 | High | Not Rated | 1981 | Tailings |
| Briones | California | Contra Costa | 273 | High | Satisfactory | 1964 | Other |
| Ridges Basin Dam | Colorado | La Plata | 273 | High | Not Available | 2008 | Water Supply |
| Nile Stone Slurry Impoundment | West Virginia | Mingo | 272 | High | Not Rated | 1993 | Other |
| Soldier Creek Dam | Utah | Wasatch | 272 | High | Not Available | 1974 | Irrigation |
| Cushman No 1 | Washington | Mason | 272 | High | Fair | 1926 | Hydroelectric |
| Emerald No. 2 Main Valley Eastern | Pennsylvania | Greene | 270 | High | Satisfactory | — | Other |
| Palisades Dam | Idaho | Bonneville | 270 | High | Not Available | 1957 | Flood Risk Reduction |
| Blue River Dam | Oregon | Lane | 270 | High | Not Available | 1968 | Flood Risk Reduction |
| Heron Dam | New Mexico | Rio Arriba | 269 | High | Not Available | 1971 | Irrigation |
| Conner Run Refuse Impoundment | West Virginia | Marshall | 267 | High | Satisfactory | 1976 | Tailings |
| Cogswell | California | Los Angeles | 266 | High | Satisfactory | 1935 | Flood Risk Reduction |
| Homestake Project | Colorado | Eagle | 265 | High | Satisfactory | 1967 | Water Supply |
| Alcova Dam | Wyoming | Natrona | 265 | High | Not Available | 1938 | Hydroelectric |
| New Spicer Meadow | California | Tuolumne | 265 | High | Satisfactory | 1989 | Hydroelectric |
| Lackey Branch Slurry Impoundment | Kentucky | Johnson | 265 | High | Not Available | — | Tailings |
| Norris Dam | Tennessee | Campbell | 265 | High | Not Available | 1936 | Flood Risk Reduction |
| Mathews | California | Riverside | 264 | High | Satisfactory | 1938 | Water Supply |
| Stoney Fork Slurry Dam | Kentucky | Bell | 264 | High | Not Available | — | Water Supply |
| Culmback | Washington | Snohomish | 262 | High | Satisfactory | 1983 | Hydroelectric |
| Maynard Branch Slurry Impoundment | West Virginia | Wayne | 262 | High | Not Available | — | Tailings |
| Wishon Main | California | Fresno | 260 | High | Satisfactory | 1958 | Hydroelectric |
| Noxon Rapids | Montana | Sanders | 260 | High | Fair | 1960 | Hydroelectric |
| Muddy Run Main Dam | Pennsylvania | Lancaster | 260 | High | Satisfactory | 1967 | Hydroelectric |
| Table Rock Dam | Missouri | Taney | 260 | High | Not Available | 1959 | Flood Risk Reduction |
| Big Branch Coal Refuse Facility | West Virginia | Clay | 260 | High | Not Rated | 1997 | Other |
| East Canyon Dam | Utah | Morgan | 260 | High | Not Available | 1966 | Flood Risk Reduction |
| Grants Branch Impoundment | Kentucky | Pike | 259 | High | Satisfactory | 1997 | Recreation |
| Wolf Creek Dam | Kentucky | Russell | 258 | High | Not Available | 1951 | Hydroelectric |
| Bear Branch Slurry Impoundment | Kentucky | Lawrence | 258 | High | Not Available | — | Tailings |
| Gathright Dam | Virginia | Alleghany | 257 | High | Not Available | 1978 | Flood Risk Reduction |
| Fort Peck Dam | Montana | McCone | 256 | High | Not Available | 1940 | Flood Risk Reduction |
| Mccloud | California | Shasta | 255 | High | Fair | 1965 | Hydroelectric |
| Nacimiento | California | San Luis Obispo | 255 | High | Poor | 1956 | Hydroelectric |
| Terminus Dam | California | Tulare | 255 | High | Not Available | 1962 | Flood Risk Reduction |
| Ririe Dam | Idaho | Bonneville | 253 | High | Not Available | 1977 | Flood Risk Reduction |
| Greers Ferry Dam | Arkansas | Cleburne | 251 | High | Not Available | 1962 | Flood Risk Reduction |
| Sugar Pine | California | Placer | 251 | High | Satisfactory | 1981 | Other |
| Cochiti Dam | New Mexico | Sandoval | 251 | High | Not Available | 1975 | Flood Risk Reduction |
| Rampart | Colorado | El Paso | 250 | High | Satisfactory | 1970 | Hydroelectric |
| Slab Creek | California | El Dorado | 250 | High | Satisfactory | 1967 | Hydroelectric |
| Britton Branch Refuse Dam | Kentucky | Leslie | 250 | High | Not Available | — | Water Supply |
| John W. Flannagan Dam | Virginia | Dickenson | 250 | High | Not Available | 1963 | Flood Risk Reduction |
| Leer Slurry Cell | West Virginia | Taylor | 250 | High | Not Available | — | Tailings |
| Lick Branch Refuse Impoundment | Kentucky | Pike | 250 | High | Not Available | — | Tailings |
| Coolidge | Arizona | Gila | 250 | High | Fair | 1931 | Irrigation |
| Mayfield | Washington | Lewis | 250 | High | Unsatisfactory | 1963 | Hydroelectric |
| Big Creek Dam No. 7 | California | Madera | 250 | High | Satisfactory | 1951 | Hydroelectric |
| Nantahala | North Carolina | Macon | 250 | High | Satisfactory | 1942 | Hydroelectric |
| Cardinal Fly Ash No. 2 Dam | Ohio | Jefferson | 250 | High | Satisfactory | 2014 | Tailings |
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.