Browse Dams

13,006 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 13,006 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
Gann Lake Dam Missouri Johnson 43 Low Satisfactory 1972 Recreation
Waubonsie Cr. Watershed Site 3 Iowa Mills 43 Significant Satisfactory 1994 Fire Protection, Stock, Or ...
Elkhorn Dam Virginia Pittsylvania 43 Significant Satisfactory — Recreation
Swan Creek 67 Nebraska Saline 43 Low Satisfactory 1988 Flood Risk Reduction
Newnan Waterworks Dam # 5 Georgia Coweta 43 High Satisfactory 1976 Water Supply
Lake Forest Dam #2 Missouri Jefferson 43 Significant Satisfactory —
Papio Creek D-18 Nebraska Douglas 43 Low Satisfactory 1990 Other
Lake Hollenbeck Dam Missouri Cape Girardeau 43 High Satisfactory 1964 Recreation
Barr Lake Colorado Adams 43 High Satisfactory 1893 Irrigation
J.W. Smith Reservoir Dam Georgia Clayton 43 High Satisfactory 1984 Water Supply
Silver Lake California Los Angeles 43 High Satisfactory 1976 Water Supply
La Plata New City Dam Missouri Macon 43 Low Satisfactory 1980 Water Supply
Salt Lick Creek No. 4 Dam West Virginia Braxton 43 High Satisfactory 1967 Flood Risk Reduction
Diamondhead Lake Dam Iowa Guthrie 43 Significant Satisfactory 1963 Recreation
Lac Bourbon Dam Missouri St. Francois 43 High Satisfactory 1971 Recreation
Glen Lyn Fly Ash Dam Virginia Giles 43 High Satisfactory — Other
Siegel Flood Control Dam Iowa Clayton 43 High Satisfactory 1938 Flood Risk Reduction
York Bldg Products Settling Pond 9 Maryland Cecil 43 Significant Satisfactory 1988 Tailings
Broz Lake Dam Missouri Montgomery 43 High Satisfactory 1975 Irrigation
Crystal Lake Alaska Petersburg Borough 43 High Satisfactory 1955 Hydroelectric
Milstead Georgia Rockdale 43 Low Satisfactory 1925 Hydroelectric
Cottonwood Creek 42-A Nebraska Saunders 43 Low Satisfactory 1967 Flood Risk Reduction
Laguna Regulating Basin California Los Angeles 43 Significant Satisfactory 1970 Flood Risk Reduction
Cold River Site 1 Dam New Hampshire Carroll 43 High Satisfactory 1969 Flood Risk Reduction
Upper Tri-County Wid Site 14a Arkansas Sharp 43 Low Satisfactory 1983 Flood Risk Reduction
Otter Creek Utah Piute 43 High Satisfactory 1897 Irrigation
Manito Dam Missouri Moniteau 43 High Satisfactory 1984 Recreation
Axell California Sonoma 43 High Satisfactory 1952 Water Supply
Lake John Minnesota Yellow Medicine 43 Significant Satisfactory 1981 Flood Risk Reduction
Laurel Lake Dam Virginia Dickenson 43 Undetermined Satisfactory 1963 Recreation
Fairmount Reservoir Colorado Jefferson 43 High Satisfactory 1993 Water Supply
Bellwood 5-G Nebraska Butler 43 Low Satisfactory 1965 Flood Risk Reduction
Easter Lake Dam Iowa Polk 43 Significant Satisfactory 1967 Recreation
Sugar Hollow Dam Missouri Warren 43 High Satisfactory 1968 Recreation
Oak Site California Santa Cruz 43 Low Satisfactory 1969 Water Supply
Lake Timber Ridge Dam Missouri Gasconade 43 High Satisfactory 1971 Recreation
Stanley Schaeffer Dam Texas Randall 43 High Satisfactory 1975 Irrigation
Lovers Leap Cat Dam Nebraska Banner 43 Low Satisfactory 1986 Flood Risk Reduction
Polk Creek No.6 West Virginia Lewis 43 High Satisfactory 1966 Flood Risk Reduction
Happy Holler Dam Missouri Andrew 43 High Satisfactory 1995 Recreation
Sand Creek 16 Nebraska Saunders 43 Low Satisfactory 2012 Flood Risk Reduction
Dunsmuir Reservoir California Alameda 43 High Satisfactory 1968 Water Supply
Floodwater Ret Dam Ss-7 Colorado Sedgwick 43 Low Satisfactory 1982 Flood Risk Reduction
E. Beckwith #1 Colorado Gunnison 43 Low Satisfactory 1935 Irrigation
Goshen Dam Virginia Rockbridge 43 High Satisfactory — Recreation
Blanco Reservoir Dam New Mexico San Juan 43 High Satisfactory 1957 Other
Del-Co Upland Storage Reservoir No. 2 Ohio Delaware 43 High Satisfactory 1989 Water Supply
Beaver Lake Dam Iowa Dallas 43 Significant Satisfactory 1990 Recreation
Mountain Run Dam #18 Virginia Culpeper 43 High Satisfactory — Flood Risk Reduction
Big Spring Pennsylvania Westmoreland 43 High Satisfactory 1907 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.