Browse Dams

12,908 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 12,908 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
Upper Big Nemaha J-34 Nebraska Johnson 30 Low Satisfactory 1969 Other
Florida 9 Minnesota Yellow Medicine 30 Significant Satisfactory 2006 Flood Risk Reduction
Blixit Creek Montana Missoula 30 High Satisfactory 1961 Irrigation
Frontier County Finishers Lagoon Dam Nebraska Frontier 30 Low Satisfactory 1993 Other
Mansfield Club Dam Michigan Ogemaw 30 Low Satisfactory 1965 Recreation
Washington Lake Dam New York Orange 30 Significant Satisfactory 1909 Water Supply
Redman Livestock Lagoon Dam Nebraska Custer 30 Low Satisfactory 2013 Other
Bill Coffee Dam 1 Nebraska Sioux 30 Low Satisfactory 1959 Fire Protection, Stock, Or ...
Reservoir No. 4 Dam Massachusetts Worcester 30 Significant Satisfactory 1965 Water Supply
Hunter Oklahoma Kiowa 30 High Satisfactory 1928 Water Supply
Osceola Lake Dam North Carolina Henderson 30 High Satisfactory 1920 Recreation
Emerald Lake Dam Texas Dallas 30 High Satisfactory 1997
Green Castle Dam Iowa Marshall 30 Significant Satisfactory 1954 Recreation
Doty Dam Iowa Dallas 30 Significant Satisfactory 1961 Fire Protection, Stock, Or ...
Wilson Creek 5-J Nebraska Otoe 30 Low Satisfactory 1973 Flood Risk Reduction
Spring Creek 9-A 301 Nebraska Dawson 30 Low Satisfactory 1970 Flood Risk Reduction
Oak-Middle 66-A Nebraska Butler 30 Low Satisfactory 1983 Flood Risk Reduction
Clearwell Phase 2 California Contra Costa 30 Low Satisfactory 1977 Water Supply
Cub Creek G-7 Nebraska Jefferson 30 Low Satisfactory 1979 Other
I-94 Rest Area Minnesota Washington 30 Low Satisfactory 1985 Flood Risk Reduction
Sidney East Dam Nebraska Cheyenne 30 High Satisfactory 1958 Flood Risk Reduction
Silver Creek 6 Nebraska Burt 30 Low Satisfactory 2006 Flood Risk Reduction
Silver Creek 30 Nebraska Burt 30 Low Satisfactory 2006 Flood Risk Reduction
Bar X Ranch Reservoir #2 California Lake 30 High Satisfactory 2003 Other
Loveland Lake Colorado Larimer 30 Significant Satisfactory 1905 Irrigation
Old Marsh Pond Dam Connecticut Litchfield 30 High Satisfactory 1913 Water Supply
Milton South California Nevada 30 Low Satisfactory 1927 Water Supply
Anderson Lake Dam Mississippi Yazoo 30 High Satisfactory - Recreation
Silver Lake Minnesota Olmsted 30 Significant Satisfactory 1935 Recreation
Upper Kohanza Lake Dam Connecticut Fairfield 30 High Satisfactory 1866 Water Supply
Rand Knotts Dam No. 2 Louisiana Jackson 30 Low Satisfactory - Recreation
Mallard California Contra Costa 30 High Satisfactory 1930 Water Supply
City Park (Pine Creek #1) Dam Tennessee Scott 30 High Satisfactory 1970
Gering Valley G Lower Nebraska Scotts Bluff 30 Significant Satisfactory 1972 Flood Risk Reduction
Simpson Legion Lake Dam Mississippi Simpson 30 High Satisfactory 1950 Recreation
Staffordville Reservoir Dam Connecticut Tolland 30 High Satisfactory 1850 Recreation
Leslie Helickson Detention Minnesota Fillmore 30 Low Satisfactory 1983 Flood Risk Reduction
Bellwood 6-E Nebraska Butler 30 Low Satisfactory 1969 Flood Risk Reduction
Almond California Alameda 30 High Satisfactory 1954 Water Supply
Logan First Dam Utah Cache 30 High Satisfactory 1914 Hydroelectric
Eberspecher Dam 1 Nebraska Sioux 30 Low Satisfactory 1959 Fire Protection, Stock, Or ...
Bellwood 5-J Nebraska Butler 30 Low Satisfactory 1966 Flood Risk Reduction
Prairie Queen North Dam Nebraska Sarpy 30 Low Satisfactory 2014 Flood Risk Reduction
Cedar Ave. Detention Pond Oklahoma Woodward 30 High Satisfactory - Flood Risk Reduction
Buena Vista Lakes Dam Mississippi DeSoto 30 Low Satisfactory - Recreation
Lovingood Pennsylvania Greene 30 Low Satisfactory - Recreation
Henley's Dam Arkansas White 30 Low Satisfactory 1979 Recreation
Genesee County Impoundment Michigan Lapeer 30 Low Satisfactory 2016 Water Supply
Nplf Lagoon 1-G Dam Nebraska Lincoln 30 Low Satisfactory 2008 Other
Lindenwood Lake Dam Ohio Medina 30 Significant Satisfactory 1958 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.