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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.

Name State County Height (ft) Hazard Condition Year Purpose
Blackwood Creek 11-A Nebraska Hayes 74 High Poor 1992 Flood Risk Reduction
Lake Montclair Dam Virginia Prince William 74 High Poor — Recreation
Sebastian Martin Bm 1 Dam New Mexico Rio Arriba 74 High Poor 1978 Flood Risk Reduction
Cartecay River W/S Str. #7 Dam Georgia Gilmer 73 High Poor 1964 Flood Risk Reduction
Lake Sympson Dam Kentucky Nelson 73 Significant Poor 1963 Water Supply
Frank E Heller Pennsylvania Lycoming 73 High Poor 1975 Water Supply
Indian Creek Dam Washington Pacific 73 High Poor 1989 Water Supply
Black Canyon Arizona Navajo 72 High Poor 1964 Recreation
Roanoke Rapids North Carolina Northampton 72 High Poor 1955 Hydroelectric
Black Rock Mountain State Park Lake Dam Georgia Rabun 72 High Poor 1974 Recreation
Renfro Dam Kentucky Rockcastle 72 High Poor 1968 Water Supply
Santa Cruz Site 6 Dam New Mexico Santa Fe 72 High Poor 1962 Flood Risk Reduction
Lake Carl Blackwell Oklahoma Payne 72 High Poor 1937 Water Supply
Saltpeter Creek Site 1a New Mexico Colfax 72 Significant Poor 1964 Flood Risk Reduction
Lake Mary-Phoebe Utah Salt Lake 72 High Poor 1915 Water Supply
Eagle Valley Reservoir Dam Nevada Lincoln 72 High Poor 1965 Recreation
Ellijay River W/S Str. # 3 Georgia Gilmer 71 High Poor 1967 Flood Risk Reduction
Las Vegas Wash Upper Detention Basin Dam Nevada Clark 71 High Poor 1993 Flood Risk Reduction
Montgomery Pennsylvania Clearfield 71 High Poor 1960 Water Supply
Hightower Creek W/S Str. #25 Georgia Towns 71 Undetermined Poor 1960
Three Mile Reservoir (L.&C.) Montana Lewis and Clark 70 High Poor 1926 Irrigation
Walnut Canyon Arizona Coconino 70 High Poor 1881 Irrigation
Cartecay River WS Str # 5 Georgia Gilmer 70 High Poor 1967 Flood Risk Reduction
Happy Valley Oregon Wasco 70 High Poor 1938 Irrigation
Lake Hamilton Dam Ohio Mahoning 70 High Poor 1905 Recreation
Greenbo Lake Dam Kentucky Greenup 70 High Poor 1955 Recreation
Horner Reservoir Maui 70 High Poor 1926 Irrigation
Grubstake Tailings Dam New Mexico Sierra 70 Low Poor 1992 Tailings
Clearwater Pond Arkansas Jefferson 69 Low Poor 1979 Other
Nelms Dam Nebraska Custer 69 Low Poor 1962 Other
Asaayi New Mexico McKinley 69 High Poor 1964 Recreation
Mimino Reservoir Kauai 69 High Poor 1920 Irrigation
Ellijay River W/S Str. #4 Dam Georgia Gilmer 68 High Poor 1968 Flood Risk Reduction
Elmer Davis Lake Dam Kentucky Owen 68 Significant Poor 1958 Recreation
Dam No 4 Kansas Linn 68 High Poor 1985 Recreation
Sharp Mountain Creek WS Str # 13 Georgia Pickens 68 High Poor 1955 Flood Risk Reduction
Lake Carnico Dam Kentucky Nicholas 68 High Poor 1963 Recreation
Ellijay River WS Str # 9 Georgia Gilmer 68 High Poor 1967 Flood Risk Reduction
Walch Dam Oregon Jackson 68 High Poor 1954 Irrigation
Okmulgee Lake Oklahoma Okmulgee 68 High Poor 1928 Water Supply
Lake Sherwood Kansas Shawnee 68 High Poor 1964 Recreation
Baker River Site 6a Dam New Hampshire Grafton 68 High Poor 1975 Flood Risk Reduction
Wiley Miller Dam Kentucky Perry 68 High Poor 1972 Recreation
Hope Lake Dam Arkansas Logan 68 Low Poor 1973 Irrigation
Beaverdam Creek Dam Virginia Bedford 68 High Poor — Water Supply
Bradford City No 5 Pennsylvania McKean 68 High Poor 1957 Water Supply
Little Creek Dam Virginia James City 67 High Poor — Water Supply
Sharp Mountain Creek WS Str # 12 Georgia Pickens 67 High Poor 1960 Flood Risk Reduction
Beech Creek Dam Kentucky Clay 67 High Poor 1963 Water Supply
Horsehead Lake Dam Arkansas Johnson 67 High Poor 1950 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.