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Browse Dams

7,711 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 7,711 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.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
Lake Helen California Sonoma 39 High Poor 1966 Water Supply
Swift Run Lake Dam Ohio Miami 39 Significant Poor 1876 Water Supply
Sexton Dam South Carolina Spartanburg 39 Low Poor — Fish and Wildlife Pond
Wilson Creek 2-3 Nebraska Otoe 39 Low Poor 1964 Other
Jm Stuart Station Ash Pond No. 7 Ohio Adams 39 Significant Poor — Tailings
Twin Lakes Camp Dam (West) Indiana Fountain 39 Low Poor 1970 Recreation
Warford Dam Nebraska Gage 39 Low Poor 1970 Recreation
Powell Oil Company Lake Kentucky Christian 39 Low Poor 1960 Other
Maui Reservoir 24 Maui 39 High Poor 1917 Irrigation
Pelto Dam New York Tioga 39 High Poor 1955 Flood Risk Reduction
Cedar Lake (Old Olathe Lake) Kansas Johnson 39 High Poor 1931 Water Supply
Brown No. 1 Wyoming Albany 39 Low Poor 1953 Irrigation
Mendocino Middle California Mendocino 39 High Poor 1908 Other
Farwell 2-1 Nebraska Howard 39 Low Poor 1963 Other
Seleski Lake No. 2 Dam Ohio Harrison 39 Significant Poor 1963 Recreation
Lake Carostar Dam South Carolina Oconee 39 Low Poor — Fire Protection, Stock, Or ...
Spring Creek 6-A Nebraska Johnson 39 Low Poor 1978 Flood Risk Reduction
Abiaca Watershed Structure Y-34-07 Dam Mississippi Carroll 39 High Poor 1966 Flood Risk Reduction
Norwich Ymca Recreation Pond Dam New York Chenango 39 Significant Poor 1970 Recreation
Abiaca Watershed Structure Y-34-03 Dam Mississippi Carroll 39 High Poor 1965 Flood Risk Reduction
Delaney Creek Dam No. 4 Indiana Washington 39 Low Poor 1973 Flood Risk Reduction
Wells Ranch Dam Nebraska Howard 39 Significant Poor 1970 Fire Protection, Stock, Or ...
Stevens Lake Dam Ohio Harrison 39 High Poor 1963 Recreation
Sibley Green Site 5 New Mexico Sierra 39 High Poor 1977 Flood Risk Reduction
Hagardon Reservoir No. 5 New Mexico Colfax 39 Low Poor 1914 Fire Protection, Stock, Or ...
Tillson Lake Dam New York Ulster 39 High Poor 1930 Recreation
Cottonwood Dam (Park) Montana Park 39 High Poor 1953 Irrigation
Second Creek WS Str No 1 Dam Mississippi Adams 39 Low Poor 1962 Flood Risk Reduction
Homestake Mining Company Evap Pond No.1 New Mexico Cibola 39 Significant Poor 1990 Other
Coffing Brothers Dam Indiana Fountain 39 Low Poor 1962 Recreation
Pine Cone No. 2 Wyoming Carbon 39 Low Poor 1977 Irrigation
West Branch Reservoir Dam New Jersey Somerset 39 High Poor 1930 Recreation
Alvie No. 1 Wyoming Albany 38 Low Poor 1974 Fish and Wildlife Pond
Little River W/S Str. #36 Georgia Fulton 38 High Poor 1964 Flood Risk Reduction
Lake Oowah Dam (Fs) Utah Grand 38 Significant Poor 1965 Recreation
Upper Big Blue River Structure No. 14 Indiana Henry 38 Significant Poor 1971 Flood Risk Reduction
International Animal Preserve Dam 9715-009 Ohio Muskingum 38 Low Poor 1972 Water Supply
Earl Park Arizona Apache 38 High Poor 1961 Recreation
Bell Wyoming Albany 38 Low Poor 1957 Irrigation
Thiltgas Gerweck Dam Nebraska Richardson 38 Low Poor 1980 Other
Stucker Fork Dam No. 9 Indiana Scott 38 High Poor 1972 Flood Risk Reduction
Ryland Lakes Dam No 1 Kentucky Kenton 38 Low Poor 1959 Recreation
Lost Creek Upground Reservoir Ohio Allen 38 High Poor 1917 Water Supply
Pony Creek - Lower Oregon Coos 38 High Poor 1988 Water Supply
Greenbriar Lake Dam Ohio Butler 38 Low Poor 1958 Recreation
Dd Vi Kansas Brown 38 Low Poor 2022 Flood Risk Reduction
Kaupp West Irrigation Dam Nebraska Keya Paha 38 Low Poor 1961 Irrigation
East Fork Above Lavon WS SCS Site 21 Dam Texas Grayson 38 Significant Poor 1964 Flood Risk Reduction
Tuscumbia WS Str Number 8 Dam Mississippi Alcorn 38 High Poor 1975 Flood Risk Reduction
Beshear Lake Dam Kentucky Caldwell 38 Significant Poor 1962 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.