Browse Dams
17,036 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 17,036 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 |
|---|---|---|---|---|---|---|---|
| Holden #22 Slurry Impoundment | West Virginia | Logan | 355 | High | Not Available | - | Tailings |
| Campbells Creek Slurry Impoundment | West Virginia | Nicholas | 355 | High | Not Rated | 1999 | Tailings |
| Arjay Slurry Impoundment | Kentucky | Bell | 355 | High | Not Available | - | Water Supply |
| Abiquiu Dam | New Mexico | Rio Arriba | 354 | High | Not Available | 1963 | Flood Risk Reduction |
| Pardee Dam | California | Calaveras | 352 | High | Fair | 1929 | Water Supply |
| Four Mile Branch Slurry Dam | Kentucky | Knott | 350 | High | Not Available | - | Tailings |
| Sierrita | Arizona | Pima | 350 | High | Not Available | - | Tailings |
| Buffalo Bill Dam | Wyoming | Park | 350 | High | Not Available | 1910 | Fish and Wildlife Pond |
| Gross Dam | Colorado | Boulder | 350 | High | Fair | 1955 | Hydroelectric |
| Arrowrock Dam | Idaho | Boise | 350 | High | Not Available | 1915 | Flood Risk Reduction |
| 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 |
| Bennetts Branch Slurry Dam | Kentucky | Whitley | 340 | High | Not Available | - | Water Supply |
| Lucky Peak Dam | Idaho | Ada | 340 | High | Not Available | 1955 | Flood Risk Reduction |
| Folsom Dam | California | Sacramento | 340 | High | Not Available | 1956 | Hydroelectric |
| Asamera Cannon Mine Tailings Dam | Washington | Chelan | 340 | High | Satisfactory | 1986 | Flood Risk Reduction |
| Castaic | California | Los Angeles | 340 | High | Poor | 1973 | Water Supply |
| 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 |
| Hells Canyon | Idaho | Adams | 330 | High | Satisfactory | 1967 | Hydroelectric |
| Alder | Washington | Pierce | 330 | High | Satisfactory | 1945 | Hydroelectric |
| Ridgway Dam | Colorado | Ouray | 330 | High | Not Available | 1987 | Flood Risk Reduction |
| 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 |
| Trace Branch Slurry Impoundment | West Virginia | Boone | 320 | High | Not Rated | 1992 | Tailings |
| Little Camp Slurry Impoundment | Kentucky | Bell | 320 | High | Not Available | - | Water Supply |
| Friant Dam | California | Madera | 319 | High | Not Available | 1942 | Flood Risk Reduction |
| Tieton Dam | Washington | Yakima | 319 | High | Not Available | 1925 | Flood Risk Reduction |
| Donnells Dam | California | Tuolumne | 317 | High | Satisfactory | 1958 | Hydroelectric |
| Bailey No. 8 Slurry Impoundment | Pennsylvania | Greene | 317 | High | Not Rated | - | Other |
| Bailey Mine Slurry Impoundment | Pennsylvania | Greene | 315 | High | Satisfactory | 1984 | Other |
| Cherry Valley | California | Tuolumne | 315 | High | Fair | 1956 | Other |
| Courtright | California | Fresno | 315 | High | Satisfactory | 1958 | Hydroelectric |
| 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 |
| Emerald No. 1 Main Valley Eastern | Pennsylvania | Greene | 310 | High | Satisfactory | - | Other |
| Dillon | Colorado | Summit | 310 | High | Satisfactory | 1963 | Water Supply |
| Cobre Main Tailings Dam | New Mexico | Grant | 310 | High | Satisfactory | 1968 | Tailings |
| Moccasin Hollow Impoundment | West Virginia | Boone | 310 | High | Not Rated | 1999 | Tailings |
| Dillon Dam | Colorado | Summit | 310 | High | Satisfactory | 1963 | 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.