Browse Dams

3,540 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 3,540 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.

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Name State County Height (ft) Hazard Condition Year Purpose
Cedar Creek Dam Alabama Franklin 102 High Not Available 1979 Flood Risk Reduction
Arcadia Dam Oklahoma Oklahoma 102 High Not Available 1986 Flood Risk Reduction
Douglas Dam - Saddle Dam No. 1 Tennessee Sevier 101 High Not Available 1943 Flood Risk Reduction
Moon Lake Dam Utah Duchesne 101 High Not Available 1938 Irrigation
Marmet Locks and Dam West Virginia Kanawha 101 Significant Not Available 1934 Navigation
Hugo Dam Oklahoma Choctaw 101 High Not Available 1974 Flood Risk Reduction
Sediment Dam Kentucky Perry 100 High Not Available — Other
Twin Lakes Dam Colorado Lake 100 High Not Available 1978 Hydroelectric
Consol/Rend Lake Mine/Slurry Cell 2 Dam Illinois Jefferson 100 High Not Available 1998 Other
Module No. 1 Kentucky Knox 100 Low Not Available — Tailings
Racine Locks and Dam West Virginia Mason 100 Significant Not Available 1971 Navigation
Summersville Dam - Dike 2 West Virginia Nicholas 100 High Not Available 1965 Flood Risk Reduction
Slurry Impoundment #4 Alabama Jefferson 100 Low Not Available — Water Supply
Foster Joseph Sayers Dam Pennsylvania Centre 100 High Not Available 1969 Flood Risk Reduction
Rathbun Dam Iowa Appanoose 100 High Not Available 1969 Flood Risk Reduction
Howard Prairie Dam Oregon Jackson 100 High Not Available 1958 Hydroelectric
Wickiup Dam Oregon Deschutes 100 High Not Available 1949 Fish and Wildlife Pond
Refuse Imp. (Sands Hill Reservoir) Ohio Vinton 100 High Not Available — Tailings
Reading Anthracite CO - New St. Nicholas Breaker Pennsylvania Schuylkill 100 High Not Available — Water Supply
North Slurry Pond Pennsylvania Washington 100 Low Not Available — Tailings
Blue Marsh Dam Pennsylvania Berks 100 High Not Available 1977 Flood Risk Reduction
Ozark-Jetta Taylor Lock and Dam Arkansas Franklin 100 Significant Not Available 1969 Navigation
Whiskeytown Dike 1 California Shasta 100 High Not Available 1963 Hydroelectric
Millers Ferry Lock and Dam Alabama Wilcox 100 Significant Not Available 1970 Recreation
Wister Dam Oklahoma Le Flore 99 High Not Available 1949 Flood Risk Reduction
Carbon Canyon Dam California Orange 99 High Not Available 1961 Flood Risk Reduction
Paradise Fossil Plant - Coal Wash Fines Pond #3 Kentucky Muhlenberg 99 Low Not Available 1994 Tailings
El Dorado Dam Kansas Butler 99 High Not Available 1981 Flood Risk Reduction
DeGray Dam Arkansas Clark 98 High Not Available 1969 Flood Risk Reduction
Greers Ferry Dam - Saddle Dike 1 Arkansas Cleburne 98 High Not Available 1962 Flood Risk Reduction
Willetto Dam New Mexico San Juan 98 High Not Available 1972
Old Hickory Lock and Dam Tennessee Davidson 98 High Not Available 1954 Navigation
Harry S. Truman Dam - Sterett Creek Dike Missouri Benton 98 High Not Available 1978 Flood Risk Reduction
Clarence J. Brown Dam Ohio Clark 98 High Not Available 1973 Flood Risk Reduction
Harry S. Truman Dam Missouri Benton 98 High Not Available 1979 Flood Risk Reduction
Granby Dike 1 Colorado Grand 98 High Not Available 1950 Hydroelectric
Birch Dam Oklahoma Osage 97 High Not Available 1977 Flood Risk Reduction
Ferrells Bridge Dam Texas Marion 97 High Not Available 1958 Flood Risk Reduction
Hansen Dam California Los Angeles 97 High Not Available 1940 Flood Risk Reduction
Pat Mayse Dam Texas Lamar 96 High Not Available 1967 Flood Risk Reduction
Berlin Dam Ohio Mahoning 96 High Not Available 1943 Flood Risk Reduction
Senator Wash Dam California Imperial 96 High Not Available 1966 Water Supply
Virginia Smith Dam Nebraska Garfield 96 High Not Available 1985 Irrigation
Kinkaid Lake Dam Illinois Jackson 96 High Not Available 1972 Recreation
Fort Patrick Henry Dam Tennessee Sullivan 95 High Not Available 1953 Flood Risk Reduction
Whitney Point Dam New York Broome 95 High Not Available 1942 Flood Risk Reduction
Big Creek Terminal Dam Iowa Polk 95 Low Not Available 1972 Flood Risk Reduction
Garrison Dam - Snake Creek Embankment North Dakota McLean 95 Significant Not Available 1952 Other
American Coal/Galatia/Slurry Pond Dam Illinois Saline 95 Low Not Available 1993 Other
Senator Wash-Xanyō Xamshré Dike California Imperial 95 High Not Available 1966 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.