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 |
|---|---|---|---|---|---|---|---|
| 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 |
| Dillon | Colorado | Summit | 310 | High | Satisfactory | 1963 | Water Supply |
| R.D. Bailey Dam | West Virginia | Mingo | 310 | High | Not Available | 1976 | Flood Risk Reduction |
| Moccasin Hollow Impoundment | West Virginia | Boone | 310 | High | Not Rated | 1999 | Tailings |
| Bartlett Dam | Arizona | Maricopa | 309 | High | Not Available | 1939 | Water Supply |
| Green Mountain Dam | Colorado | Summit | 309 | High | Not Available | 1943 | Hydroelectric |
| Olivenhain | California | San Diego | 309 | High | Satisfactory | 2003 | Water Supply |
| 3 West | Arizona | Graham | 307 | Low | Not Available | — | Tailings |
| Hiwassee Dam | North Carolina | Cherokee | 307 | High | Not Available | 1940 | Flood Risk Reduction |
| Elephant Butte Dam | New Mexico | Sierra | 306 | High | Not Available | 1916 | Flood Risk Reduction |
| Horse Mesa Dam | Arizona | Maricopa | 305 | High | Not Available | 1927 | Hydroelectric |
| Scotts Branch Slurry Impoundment | Kentucky | Pike | 305 | High | Not Available | — | Tailings |
| Monticello Dam | California | Napa | 304 | High | Not Available | 1957 | Irrigation |
| Big Branch Impoundment | Kentucky | Knott | 304 | High | Not Available | — | Tailings |
| Buckeye Creek Dam | Kentucky | Perry | 300 | High | Not Available | — | Water Supply |
| 30-Acre Pond | Virginia | Russell | 300 | Undetermined | Not Rated | — | Tailings |
| Gorge | Washington | Whatcom | 300 | High | Satisfactory | 1961 | Hydroelectric |
| Lewis Smith | Alabama | Walker | 300 | High | Satisfactory | 1961 | Hydroelectric |
| No. 2 Slurry Pond | Ohio | Belmont | 300 | High | Not Available | — | Water Supply |
| Mill 5/6 Center Tailings Storage Facility | Nevada | Eureka | 300 | Significant | Fair | 1991 | Tailings |
| Mathies Mine Refuse Area Pond #2 | Pennsylvania | Washington | 300 | High | Fair | 1982 | Other |
| Strontia Springs | Colorado | Douglas | 299 | High | Satisfactory | 1982 | Water Supply |
| Sly Creek | California | Butte | 299 | High | Satisfactory | 1961 | Hydroelectric |
| Granby Dam | Colorado | Grand | 298 | High | Not Available | 1950 | Hydroelectric |
| Jennings Randolph Dam | Maryland | Mineral | 296 | High | Not Available | 1981 | Flood Risk Reduction |
| Seminoe Dam | Wyoming | Carbon | 295 | High | Not Available | 1938 | Hydroelectric |
| Left Fork Dam | Kentucky | Leslie | 295 | High | Not Available | — | Water Supply |
| McPhee Dam | Colorado | Montezuma | 295 | High | Not Available | 1983 | Fish and Wildlife Pond |
| Fugate Fork Dam | Kentucky | Breathitt | 295 | High | Not Available | — | Tailings |
| Blue Lake | Alaska | City and Borough of Sitka | 294 | High | Satisfactory | 1961 | Hydroelectric |
| Harmon Branch Refuse Disposal Facility | West Virginia | McDowell | 294 | High | Not Available | — | Tailings |
| Upper Stillwater Dam | Utah | Duchesne | 292 | High | Not Available | 1987 | Irrigation |
| Peter Cave Fresh Water Impoundment | Kentucky | Martin | 290 | High | Not Available | — | Other |
| Little White Oak Slurry Impoundment | West Virginia | Logan | 290 | High | Not Available | — | Tailings |
| Dix River Dam | Kentucky | Mercer | 287 | High | Satisfactory | 1925 | Hydroelectric |
| Amistad Dam | Texas | Val Verde | 287 | High | Poor | 1969 | Flood Risk Reduction |
| Centralia Coal Mine Dam No 3d | Washington | Lewis | 285 | Low | — | 1988 | Tailings |
| Lower Baker | Washington | Skagit | 285 | High | Poor | 1927 | Hydroelectric |
| South Holston Dam | Tennessee | Sullivan | 285 | High | Not Available | 1950 | Flood Risk Reduction |
| High Ridge Slurry Impoundment | Kentucky | Pike | 285 | High | Not Available | — | Tailings |
| Millstone Branch Slurry Impoundment No. 1 | Kentucky | Pike | 285 | High | Not Available | — | Tailings |
| Lemon Dam | Colorado | La Plata | 284 | High | Not Available | 1963 | Fish and Wildlife Pond |
| Beardsley | California | Tuolumne | 284 | High | Fair | 1957 | Hydroelectric |
| Diamond Valley Lake | California | Riverside | 284 | High | Satisfactory | 2000 | Water Supply |
| Alamo Dam | Arizona | Mohave | 283 | High | Not Available | 1968 | Flood Risk Reduction |
| Whiskeytown Dam | California | Shasta | 282 | High | Not Available | 1963 | Hydroelectric |
| Bull Shoals Dam | Arkansas | Baxter | 282 | High | Not Available | 1951 | Flood Risk Reduction |
| Laurel Dam | Kentucky | Laurel | 282 | High | Not Available | 1973 | Recreation |
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.