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Browse Dams

16,894 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 16,894 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
Ridges Basin Dam Colorado La Plata 273 High Not Available 2008 Water Supply
Briones California Contra Costa 273 High Satisfactory 1964 Other
Nile Stone Slurry Impoundment West Virginia Mingo 272 High Not Rated 1993 Other
Cushman No 1 Washington Mason 272 High Fair 1926 Hydroelectric
Soldier Creek Dam Utah Wasatch 272 High Not Available 1974 Irrigation
Palisades Dam Idaho Bonneville 270 High Not Available 1957 Flood Risk Reduction
Emerald No. 2 Main Valley Eastern Pennsylvania Greene 270 High Satisfactory — Other
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
Norris Dam Tennessee Campbell 265 High Not Available 1936 Flood Risk Reduction
Homestake Project Colorado Eagle 265 High Satisfactory 1967 Water Supply
New Spicer Meadow California Tuolumne 265 High Satisfactory 1989 Hydroelectric
Lackey Branch Slurry Impoundment Kentucky Johnson 265 High Not Available — Tailings
Alcova Dam Wyoming Natrona 265 High Not Available 1938 Hydroelectric
Stoney Fork Slurry Dam Kentucky Bell 264 High Not Available — Water Supply
Mathews California Riverside 264 High Satisfactory 1938 Water Supply
Maynard Branch Slurry Impoundment West Virginia Wayne 262 High Not Available — Tailings
Culmback Washington Snohomish 262 High Satisfactory 1983 Hydroelectric
Wishon Main California Fresno 260 High Satisfactory 1958 Hydroelectric
Noxon Rapids Montana Sanders 260 High Fair 1960 Hydroelectric
Big Branch Coal Refuse Facility West Virginia Clay 260 High Not Rated 1997 Other
Table Rock Dam Missouri Taney 260 High Not Available 1959 Flood Risk Reduction
Muddy Run Main Dam Pennsylvania Lancaster 260 High Satisfactory 1967 Hydroelectric
East Canyon Dam Utah Morgan 260 High Not Available 1966 Flood Risk Reduction
Grants Branch Impoundment Kentucky Pike 259 High Satisfactory 1997 Recreation
Bear Branch Slurry Impoundment Kentucky Lawrence 258 High Not Available — Tailings
Wolf Creek Dam Kentucky Russell 258 High Not Available 1951 Hydroelectric
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
Terminus Dam California Tulare 255 High Not Available 1962 Flood Risk Reduction
Nacimiento California San Luis Obispo 255 High Poor 1956 Hydroelectric
Ririe Dam Idaho Bonneville 253 High Not Available 1977 Flood Risk Reduction
Cochiti Dam New Mexico Sandoval 251 High Not Available 1975 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
John W. Flannagan Dam Virginia Dickenson 250 High Not Available 1963 Flood Risk Reduction
Slab Creek California El Dorado 250 High Satisfactory 1967 Hydroelectric
Big Creek Dam No. 7 California Madera 250 High Satisfactory 1951 Hydroelectric
Britton Branch Refuse Dam Kentucky Leslie 250 High Not Available — Water Supply
Leer Slurry Cell West Virginia Taylor 250 High Not Available — Tailings
Lick Branch Refuse Impoundment Kentucky Pike 250 High Not Available — Tailings
Nantahala North Carolina Macon 250 High Satisfactory 1942 Hydroelectric
Mayfield Washington Lewis 250 High Unsatisfactory 1963 Hydroelectric
Coolidge Arizona Gila 250 High Fair 1931 Irrigation
Cardinal Fly Ash No. 2 Dam Ohio Jefferson 250 High Satisfactory 2014 Tailings
Rampart Colorado El Paso 250 High Satisfactory 1970 Hydroelectric

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.