Browse Dams

16,901 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 16,901 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
Prompton Dam Pennsylvania Wayne 140 High Not Available 1961 Flood Risk Reduction
Davis County -Barton Creek Db Utah Davis 140 High Fair 1984 Flood Risk Reduction
Sweetwater Lake Dam Indiana Brown 140 High Fair 1965 Recreation
Caneadea Dam New York Allegany 140 High Fair 1929 Recreation
Bliss Idaho Gooding 140 High Satisfactory 1950 Hydroelectric
Tallulah Falls Georgia Rabun 140 High Satisfactory 1913 Hydroelectric
Marge Schott Lake Dam Ohio Clermont 140 High Satisfactory 2000 Recreation
Bear Swamp - South Dike Massachusetts Franklin 140 High Satisfactory 1974 Hydroelectric
Gene Wash California San Bernardino 140 High Satisfactory 1937 Water Supply
Coyote California Santa Clara 140 High Poor 1936 Water Supply
Magnetite Tailings Dam New Mexico Grant 140 High Satisfactory 1980 Tailings
Relief California Tuolumne 140 High Poor 1909 Hydroelectric
East Fork (Tannasee Creek) North Carolina Jackson 140 High Satisfactory 1955 Hydroelectric
Mountain Island North Carolina Gaston 140 High Fair 1923 Hydroelectric
Robert Lee Dam Texas Coke 140 High Fair 1969 Water Supply
Icon Materials Pond 4 Washington King 140 High Fair 1997 Water Supply
Possum Point Ash Dam #D Virginia Prince William 140 High Satisfactory — Debris Control
Mississinewa Dam Indiana Miami 140 High Not Available 1967 Flood Risk Reduction
Hazel Creek W/S Str. #12 Georgia Habersham 139 High Fair 1962 Flood Risk Reduction
T. Howard Duckett Dam Maryland Howard 139 High Fair 1953 Water Supply
Stony Gorge Dam California Glenn 139 High Not Available 1928 Water Supply
East Park Dam California Colusa 139 High Not Available 1910 Irrigation
Fontenelle Dam Wyoming Lincoln 139 High Not Available 1964 Fish and Wildlife Pond
Frenchman California Plumas 139 High Satisfactory 1961 Water Supply
Goose Creek Lake Dam Missouri Ste. Genevieve 139 High Satisfactory 1986 Recreation
Palo Duro Dam Texas Hansford 139 High Satisfactory 1991 Water Supply
Claytor Virginia Pulaski 139 High Satisfactory 1939 Hydroelectric
Ward Impoundment (Upper) Dam West Virginia Kanawha 139 High Satisfactory 1965 Tailings
Scott California Lake 138 High Fair 1921 Hydroelectric
Cooper Dev - Pinopolis Dam South Carolina Berkeley 138 High Fair 1942 Flood Risk Reduction
Ash Creek Utah Washington 138 High Fair 1960 Irrigation
Shepaug Connecticut New Haven 138 High Satisfactory 1955 Hydroelectric
Costilla Dam New Mexico Taos 138 High Fair 1920 Irrigation
Huffaker Effluent Storage Reservoir Dam Nevada Washoe 138 High Fair 1992 Other
Shelbyville Dam Illinois Shelby 138 High Not Available 1970 Flood Risk Reduction
Thomaston Dam Connecticut Litchfield 137 High Not Available 1960 Flood Risk Reduction
Grapevine Dam Texas Tarrant 137 High Not Available 1952 Flood Risk Reduction
Sanchez Colorado Costilla 137 High Unsatisfactory 1911 Irrigation
Saville Dam Connecticut Litchfield 137 High Satisfactory 1940 Water Supply
Guernsey Dam Wyoming Platte 137 High Not Available 1927 Hydroelectric
Oologah Dam Oklahoma Rogers 137 High Not Available 1963 Flood Risk Reduction
Lauro Dam California Santa Barbara 137 High Not Available 1952 Water Supply
Wilson Dam Alabama Lauderdale 137 High Not Available 1924 Flood Risk Reduction
Pineview Dam Utah Weber 137 High Not Available 1937 Irrigation
Santiago Creek California Orange 136 High Poor 1933 Water Supply
Ash Basin No 2 Pennsylvania Snyder 136 High Fair 1955 Other
Tabeaud California Amador 136 High Poor 1901 Hydroelectric
South Forebay Dike New York St. Lawrence 136 High Satisfactory 1958 Hydroelectric
Buffalo Bill-Diamond Creek Dike Wyoming Park 136 High Not Available 1905 Fish and Wildlife Pond
Willow Creek Montana Big Horn 136 High Fair 1941 Irrigation

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.