Browse Dams
92,628 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 92,628 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 |
|---|---|---|---|---|---|---|---|
| Theodore Roosevelt Dam | Arizona | Maricopa | 357 | High | Not Available | 1911 | Hydroelectric |
| Big Hollow Slurry Impoundment | Kentucky | Martin | 356 | High | Not Available | — | Tailings |
| Warm Springs Dam | California | Sonoma | 356 | High | Not Available | 1983 | Flood Risk Reduction |
| Campbells Creek Slurry Impoundment | West Virginia | Nicholas | 355 | High | Not Rated | 1999 | Tailings |
| Arjay Slurry Impoundment | Kentucky | Bell | 355 | High | Not Available | — | Water Supply |
| Holden #22 Slurry Impoundment | West Virginia | Logan | 355 | High | Not Available | — | Tailings |
| Abiquiu Dam | New Mexico | Rio Arriba | 354 | High | Not Available | 1963 | Flood Risk Reduction |
| Pardee | California | Calaveras | 352 | High | Fair | 1929 | Water Supply |
| Fort Knox Tailings Dam | Alaska | Fairbanks North Star Borough | 350 | Significant | Fair | 1996 | Water Supply |
| Sierrita | Arizona | Pima | 350 | High | Not Available | — | Tailings |
| Arrowrock Dam | Idaho | Boise | 350 | High | Not Available | 1915 | Flood Risk Reduction |
| Buffalo Bill Dam | Wyoming | Park | 350 | High | Not Available | 1910 | Fish and Wildlife Pond |
| Gross | Colorado | Boulder | 350 | High | Fair | 1955 | Hydroelectric |
| Four Mile Branch Slurry Dam | Kentucky | Knott | 350 | High | Not Available | — | Tailings |
| Beartree Branch Slurry Impoundment | Kentucky | Harlan | 345 | High | Not Available | — | Water Supply |
| William L. Jess Dam | Oregon | Jackson | 345 | High | Not Available | 1976 | Flood Risk Reduction |
| Hills Creek Dam | Oregon | Lane | 341 | High | Not Available | 1962 | Flood Risk Reduction |
| Tennessee Consolidated Coal #1 Dam | Tennessee | Marion | 340 | Low | Satisfactory | 1976 | |
| Lucky Peak Dam | Idaho | Ada | 340 | High | Not Available | 1955 | Flood Risk Reduction |
| Bennetts Branch Slurry Dam | Kentucky | Whitley | 340 | High | Not Available | — | Water Supply |
| Asamera Cannon Mine Tailings Dam | Washington | Chelan | 340 | High | Satisfactory | 1986 | Flood Risk Reduction |
| Castaic | California | Los Angeles | 340 | High | Poor | 1973 | Water Supply |
| Folsom Dam | California | Sacramento | 340 | High | Not Available | 1956 | Hydroelectric |
| San Vicente | California | San Diego | 338 | High | Satisfactory | 1943 | Other |
| Bailey Mine Area No. 3 Slurry | Pennsylvania | Greene | 337 | High | Satisfactory | 2014 | Other |
| Casitas Dam | California | Ventura | 334 | High | Not Available | 1959 | Irrigation |
| Brushy Fork Slurry Dam | Kentucky | Knott | 332 | High | Not Available | — | Water Supply |
| Watauga Dam | Tennessee | Carter | 332 | High | Not Available | 1948 | Flood Risk Reduction |
| Alder | Washington | Pierce | 330 | High | Satisfactory | 1945 | Hydroelectric |
| Ridgway Dam | Colorado | Ouray | 330 | High | Not Available | 1987 | Flood Risk Reduction |
| Hells Canyon | Idaho | Adams | 330 | High | Satisfactory | 1967 | Hydroelectric |
| Right Fork Slurry Dam | Kentucky | Perry | 329 | High | Not Available | — | Tailings |
| Salt Springs | California | Calaveras | 328 | High | Satisfactory | 1931 | Hydroelectric |
| Cerrillos Dam | Puerto Rico | Ponce | 323 | High | Satisfactory | 1992 | Flood Risk Reduction |
| Yale | Washington | Cowlitz | 323 | High | Fair | 1953 | Hydroelectric |
| Crystal Dam | Colorado | Montrose | 323 | High | Not Available | 1977 | Hydroelectric |
| Ruedi Dam | Colorado | Pitkin | 322 | High | Not Available | 1968 | Hydroelectric |
| Parker Dam | Arizona | La Paz | 320 | High | Not Available | 1938 | Hydroelectric |
| Little Camp Slurry Impoundment | Kentucky | Bell | 320 | High | Not Available | — | Water Supply |
| Trace Branch Slurry Impoundment | West Virginia | Boone | 320 | High | Not Rated | 1992 | Tailings |
| Tieton Dam | Washington | Yakima | 319 | High | Not Available | 1925 | Flood Risk Reduction |
| Friant Dam | California | Madera | 319 | High | Not Available | 1942 | Flood Risk Reduction |
| Bailey No. 8 Slurry Impoundment | Pennsylvania | Greene | 317 | High | Not Rated | — | Other |
| Donnells | California | Tuolumne | 317 | High | Satisfactory | 1958 | Hydroelectric |
| Courtright | California | Fresno | 315 | High | Satisfactory | 1958 | Hydroelectric |
| Cherry Valley | California | Tuolumne | 315 | High | Fair | 1956 | Other |
| Bailey Mine Slurry Impoundment | Pennsylvania | Greene | 315 | High | Satisfactory | 1984 | Other |
| Merwin | Washington | Cowlitz | 313 | High | Fair | 1931 | Hydroelectric |
| Upper Baker | Washington | Whatcom | 312 | High | Fair | 1959 | Hydroelectric |
| O`Shaughnessy | California | Tuolumne | 312 | High | Satisfactory | 1923 | 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.