Browse Dams

16,894 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 16,894 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
Silt Pond California Los Angeles 80 High Not Available — Other
Gem Lake California Mono 80 High Poor 1917 Hydroelectric
Oconee Intake Dike South Carolina Oconee 80 High Satisfactory 1971 Hydroelectric
Blake New York St. Lawrence 80 High Satisfactory 1957 Hydroelectric
Sherman Island New York Warren 80 High Satisfactory 1923 Hydroelectric
Fond Du Lac Minnesota St. Louis 80 High Satisfactory 1924 Hydroelectric
King Arthur'S Dam Missouri Washington 80 High Satisfactory 1980 Tailings
Pond 3 California San Joaquin 80 High Not Available — Other
Box Elder Creek Dam Montana Sheridan 80 High Satisfactory 1963 Recreation
Cataract Creek Dam Montana Madison 80 High Unsatisfactory 1959 Irrigation
Lower North River # 22b Virginia Rockingham 80 High Fair — Flood Risk Reduction
Stony Creek Dam #9 Virginia Shenandoah 80 High Satisfactory 1971 Flood Risk Reduction
Lake Cortez Dam Arkansas Garland 80 High Fair 1979 Recreation
Alcove Dam New York Albany 80 High Satisfactory 1929 Water Supply
SCS-Cobb Creek Site-001 Oklahoma Washita 80 High Not Rated 1959 Flood Risk Reduction
Milner Dam-Middle Idaho Twin Falls 80 High Satisfactory 1905 Irrigation
Okemo Snow Pond Vermont Windsor 80 High Fair 1994 Recreation
Willow Creek Dam Nebraska Pierce 80 High Poor 1983 Flood Risk Reduction
Adjuntas Dam Puerto Rico Adjuntas 80 High Satisfactory 1950 Hydroelectric
Dull Knife Wyoming Johnson 80 High Fair 1966 Irrigation
Big Casino Creek Dam Montana Fergus 80 High Satisfactory 1976 Irrigation
Atoka Reservoir Oklahoma Atoka 80 High Satisfactory 1957 Water Supply
Sagar Lower Dam North Carolina Transylvania 80 High Satisfactory — Recreation
Cheaha Creek W/S Dam Site 6 Alabama Talladega 79 High Not Rated 1970 Flood Risk Reduction
Chesbro California Sacramento 79 High Satisfactory 1972 Water Supply
Bowman-Haley Dam North Dakota Bowman 79 High Not Available 1967 Flood Risk Reduction
Souhegan River Site 26 Dam New Hampshire Hillsborough 79 High Fair 1965 Flood Risk Reduction
Brule Michigan Iron 79 High Satisfactory 1919 Hydroelectric
M&S Dam Utah Uintah 79 High Satisfactory 2014 Irrigation
Patterson Creek No.48 West Virginia Mineral 79 High Satisfactory 1974 Flood Risk Reduction
Rattlesnake Canyon California Orange 79 High Fair 1959 Water Supply
Lake Timberline Dam Missouri St. Francois 79 High Satisfactory 1963 Recreation
Maffitt Reservoir Dam Iowa Dallas 79 High Satisfactory 1944 Water Supply
Brays Lake Dam Missouri Phelps 79 High Satisfactory 1963 Recreation
Ellijay River WS Str # 12 Georgia Gilmer 79 High Poor 1968 Flood Risk Reduction
Pinson Gravel Company Dam Missouri Washington 79 High Satisfactory 1973 Tailings
Wissota South Saddle Dike Wisconsin Chippewa 79 High Fair 1917 Hydroelectric
Hunting Creek Dam Maryland Frederick 79 High Fair 1969 Water Supply
Wissota North Saddle Dike Wisconsin Chippewa 79 High Satisfactory 1917 Hydroelectric
Cartecay River WS Str # 3 Georgia Gilmer 79 High Poor 1965 Flood Risk Reduction
Stanley A. Mahr Reservoir California San Diego 79 High Satisfactory 1981 Water Supply
Patterson Creek No. 4 Dam West Virginia Grant 79 High Fair 1966 Flood Risk Reduction
O'Shaughnessy Ohio Delaware 79 High Satisfactory 1924 Water Supply
Lake Francis California Yuba 79 High Satisfactory 2000 Water Supply
Crow Broad Placitas Dam No. 2a New Mexico Doña Ana 79 High Poor 1971 Flood Risk Reduction
Indian Lake (Str. #6) Indiana Perry 79 High Not Rated 1968 Flood Risk Reduction
Manatee Cooling Water Reservoir Florida Manatee 79 High Satisfactory 1975 Other
Lake Pat Cleburne Dam Texas Johnson 78 High Fair 1964 Water Supply
Running Water Draw Site 1 Dam New Mexico Curry 78 High Poor 1975 Flood Risk Reduction
Berkeley Lake Dam Georgia Gwinnett 78 High Satisfactory 1948 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.