Browse Dams

17,049 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 17,049 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
Wildwood Lake Dam Illinois Marshall 84 High Not Available 1969 Recreation
Bear Gap No 2 Pennsylvania Columbia 83 High Fair 1923 Water Supply
Dover Dam Ohio Tuscarawas 83 High Not Available 1938 Flood Risk Reduction
Lake Tanglewood Dam Texas Randall 83 High Fair 1965 Flood Risk Reduction
South Platte Reservoir Colorado Arapahoe 83 High Satisfactory 2007 Water Supply
Maple Creek #3 Slurry Pond #2 Pennsylvania Washington 83 High Satisfactory - Other
Cave Creek Dam Nevada White Pine 83 High Satisfactory 1932 Recreation
Belews Creek Saddle Dike #2 Dam North Carolina Stokes 83 High Fair 1971 Other
Newcastle Utah Iron 83 High Fair 1956 Irrigation
Righetti California San Luis Obispo 83 High Satisfactory 1966 Other
Butler Storage Reservoir Dam New York Warren 83 High Satisfactory 1909 Water Supply
High Falls Wisconsin Marinette 83 High Satisfactory 1910 Hydroelectric
York Indian Rock Dam Pennsylvania York 83 High Not Available 1942 Flood Risk Reduction
Great Western Colorado Broomfield 83 High Fair 1903 Water Supply
Sardis Dam Oklahoma Pushmataha 83 High Not Available 1982 Flood Risk Reduction
Kaneohe Dam Hawaii Honolulu 83 High Fair 1980 Flood Risk Reduction
Harvey Run No. 2 Slurry Impoundment West Virginia Monongalia 83 High Not Available - Tailings
Olalla Oregon Lincoln 83 High Fair 1968 Other
Atlanta Reservoir Dam No. 2 Georgia Fulton 83 High Satisfactory 1960 Water Supply
Smith Pond Tailings Dam Georgia Washington 83 High Satisfactory -
Ripogenus Maine Piscataquis 83 High Satisfactory 1916 Hydroelectric
Big Hill Dam Kansas Labette 83 High Not Available 1981 Flood Risk Reduction
Hinckley New York Herkimer 83 High Satisfactory 1914 Hydroelectric
Superior Colorado Boulder 83 High Satisfactory 1994 Water Supply
North Fork Oregon Benton 83 High Fair 1960 Water Supply
Brownwood Laterals WS SCS Site 3 Dam Texas Brown 83 High Not Rated 1973 Flood Risk Reduction
Shadehill Dike 2 South Dakota Perkins 83 High Not Available 1951 Flood Risk Reduction
Harmon Creek #1 West Virginia Brooke 83 High Satisfactory 1974 Flood Risk Reduction
Michael J. Kirwan Dam Ohio Portage 83 High Not Available 1966 Flood Risk Reduction
Lake Frey California Solano 83 High Fair 1894 Water Supply
Lost River #10 Dam West Virginia Hardy 83 High Satisfactory 2005 Flood Risk Reduction
Sleepy Hollow Dam New York Greene 83 High Satisfactory 1972 Recreation
Surry Mountain Dam New Hampshire Cheshire 83 High Not Available 1941 Flood Risk Reduction
Lake Creek Oregon Jackson 83 High Fair 1965 Irrigation
Unity Dam Oregon Baker 82 High Not Available 1938 Irrigation
N&S Mill Creek No.4 West Virginia Grant 82 High Fair 1980 Flood Risk Reduction
Ryan Dam Montana Cascade 82 High Satisfactory 1915 Hydroelectric
Bear Creek Reservoir Georgia Jackson 82 High Satisfactory -
Long Branch Reservoir Dam Georgia Henry 82 High Satisfactory - Water Supply
Conroe Dam Texas Montgomery 82 High Not Rated 1973 Irrigation
North California Contra Costa 82 High Satisfactory 1961 Water Supply
Lower North River # 80 Virginia Rockingham 82 High Fair - Flood Risk Reduction
Robert S. Kerr Lock and Dam Oklahoma Le Flore 82 High Not Available 1970 Navigation
Moores Creek Dam Virginia Rockbridge 82 High Poor - Water Supply
Little Otter Creek Lo-1 Lake Dam Missouri Caldwell 82 High Not Rated -
Sawpit Debris Basin California Los Angeles 82 High Fair 1955 Debris Control
Patterson Creek No. 6 Dam West Virginia Grant 82 High Satisfactory 1967 Flood Risk Reduction
Lake Rene Pennsylvania Clearfield 82 High Fair 1955 Recreation
Fort Supply Dam Oklahoma Woodward 82 High Not Available 1942 Flood Risk Reduction
Red Deer Creek WS SCS Site 13 Dam Texas Roberts 82 High Satisfactory 1993 Flood Risk Reduction

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.