Browse Dams

92,766 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 92,766 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
Cherokee Dam Virginia Frederick 46 Significant Not Rated - Recreation
Lake Lucille Dam Arkansas Washington 46 Significant Not Rated 1964 Recreation
Lake Lorraine Dam Missouri Jefferson 46 High Satisfactory 1957 Recreation
Westbrook Lake Dam Georgia Madison 46 Undetermined Not Rated -
Iowa Noname34 Iowa O'Brien 46 Low Not Rated 1973 Fire Protection, Stock, Or ...
Joder Colorado Boulder 46 Low Satisfactory 1962 Irrigation
Emerald Lake Dam Missouri Washington 46 High Satisfactory 1982 Recreation
Intermountain Power Bottom Ash Basins Utah Millard 46 Low Not Rated 1983 Other
Copeland Dam Arkansas Faulkner 46 Low Satisfactory 1967 Recreation
Unimin Fresh Water Dam Virginia Frederick 46 High Not Rated - Other
Hermosa Valley Colorado Las Animas 46 Low Satisfactory 1922 Irrigation
Lake Monroe Dam North Carolina Union 46 High Fair 1955 Recreation
Reynolds Plantation Lake Dam "B" Georgia Greene 46 Low Not Rated -
Griffin Creek Dam Oregon Harney 46 Significant Not Rated 1953 Irrigation
Kirila Pond Dam Ohio Trumbull 46 Significant Poor 1950 Recreation
Frog Montana Blaine 46 Low - 1960 Fire Protection, Stock, Or ...
Little Sandy Creek 61 Nebraska Fillmore 46 Low Satisfactory 2006 Flood Risk Reduction
Park Colorado Delta 46 High Fair 1940 Irrigation
Hourglass Colorado Larimer 46 High Satisfactory 1898 Irrigation
Gibbs Ranch Dam Nevada Elko 46 High Poor 1997 Irrigation
Kaloko Reservoir Hawaii Kauai 46 High Poor 1890 Irrigation
Alma Lake Dam Indiana Parke 46 Significant Poor 1935 Recreation
Duck Fork Utah Sanpete 46 Significant Not Rated 1978 Recreation
Miller Lake Dam Missouri Warren 46 High Satisfactory 1977 Recreation
Coastways California San Mateo 46 High Satisfactory 1951 Water Supply
Lake Trails Dam Missouri Jefferson 46 High Satisfactory 1967 Recreation
Hiwan #6 Colorado Jefferson 46 Low Satisfactory 1963 Irrigation
Semke Dam Iowa Greene 46 Low Not Rated 1998 Fire Protection, Stock, Or ...
Cline Dam Nebraska Boyd 46 Low Not Rated 1976 Irrigation
Lake Cooper Dam Texas Archer 46 Significant Poor 1953 Water Supply
Lake Elmdale Dam Arkansas Washington 46 High Poor 1952 Recreation
Bluebird Lake Dam Georgia Harris 46 Low Not Rated - Recreation
Triple L Det #1 Colorado Elbert 46 Low Not Rated 1973 Flood Risk Reduction
Holly 10 Minnesota Murray 46 Low - 2023 Grade Stabilization
Beckjord Ash Pond B Ohio Clermont 46 Significant Satisfactory - Tailings
Dd No 39 Kansas Wabaunsee 46 Low - 1992 Flood Risk Reduction
Tuller Reservoir Dam Connecticut Hartford 46 Significant Fair 1900 Recreation
Johnson Dam 1706 Nebraska Otoe 46 Low Fair 1979 Other
Green Gate Farms Dam Missouri St. Charles 46 High Satisfactory 1994
Main Colorado Jefferson 46 High Satisfactory 1908 Irrigation
Katy Lake Dam Texas Montague 46 Low Not Rated 1922 Recreation
Shoofly Idaho Owyhee 46 Low Fair 1977 Irrigation
Unick Road Dam Nebraska Custer 46 Low Poor 1984 Flood Risk Reduction
Ogallala 6 (West Dam) Nebraska Keith 46 High Satisfactory 1989 Flood Risk Reduction
Legacy Irrigation Storage Pond Dam North Carolina Chatham 46 Low Fair 2007 Irrigation
Chris Didier Dam Oklahoma Blaine 46 Low Not Rated - Irrigation
Woodland Maine Washington 46 High Poor 1906 Hydroelectric
Kansas Doniphan 45 Low - 1968 Fire Protection, Stock, Or ...
Seven Islands Dam Virginia Culpeper 45 Undetermined Not Rated - Recreation
Gator Lake Dam Texas Henderson 45 Low Not Rated - 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.