Browse Dams

17,036 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 17,036 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
Wickiup Dam Oregon Deschutes 100 High Not Available 1949 Fish and Wildlife Pond
Reynolds Lake Dam North Carolina Surry 100 High Fair 1936 Recreation
Rathbun Dam Iowa Appanoose 100 High Not Available 1969 Flood Risk Reduction
Muskingum River Middle Fly Ash Dam Ohio Washington 100 High Satisfactory 1968 Tailings
Conklingville New York Saratoga 100 High Satisfactory 1930 Hydroelectric
Willow Creek Colorado Routt 100 High Fair 1966 Recreation
Reading Anthracite CO - New St. Nicholas Breaker Pennsylvania Schuylkill 100 High Not Available - Water Supply
Foster Joseph Sayers Dam Pennsylvania Centre 100 High Not Available 1969 Flood Risk Reduction
Hibbing Taconite Reclaim Pond Minnesota St. Louis 100 High - - Tailings
Tilden Recirculation Basin Michigan Marquette 100 High Satisfactory 1973 Water Supply
Sediment Dam Kentucky Perry 100 High Not Available - Other
South Catamount Colorado Teller 100 High Fair 1935 Water Supply
Sorrells Reservoir Dam Texas Morris 100 High Poor 1956
Gaston North Carolina Northampton 99 High Poor 1963 Hydroelectric
Willow Creek Arizona Yavapai 99 High Satisfactory 1936 Irrigation
Carbon Canyon Dam California Orange 99 High Not Available 1961 Flood Risk Reduction
Gulf Island Maine Androscoggin 99 High Satisfactory 1926 Hydroelectric
Celanese Acetate Pond A Virginia Giles 99 High Satisfactory - Other
Lake Leon Dam Texas Eastland 99 High Satisfactory 1954 Water Supply
Patterson Creek No. 13 Dam West Virginia Grant 99 High Fair 1964 Flood Risk Reduction
El Dorado Dam Kansas Butler 99 High Not Available 1981 Flood Risk Reduction
Wister Dam Oklahoma Le Flore 99 High Not Available 1949 Flood Risk Reduction
Bear Canyon Dam New Mexico Grant 99 High Poor 1937 Irrigation
Crow Montana Lake 99 High Poor 1933 Irrigation
Hulet Idaho Owyhee 99 High Fair 1976 Other
Moss Lake Dam North Carolina Cleveland 99 High Poor 1973 Water Supply
Tillery North Carolina Stanly 99 High Satisfactory 1928 Hydroelectric
Lower Bucks Lake Dam California Plumas 99 High Fair 1928 Hydroelectric
Little Seneca Dam Maryland Montgomery 99 High Fair 1984 Water Supply
Bluewater Dam New Mexico Cibola 99 High Fair 1927 Irrigation
National Lead Industries Dam Missouri Washington 99 High Satisfactory 1959 Tailings
Brand Park California Los Angeles 99 High Satisfactory 1930 Water Supply
Lost Creek Dam Texas Jack 99 High Fair 1991 Water Supply
Granby Dike 1 Colorado Grand 98 High Not Available 1950 Hydroelectric
Cow Creek Iwr Auxiliary Dam Oregon Douglas 98 High Satisfactory 2007 Water Supply
Old Hickory Lock and Dam Tennessee Davidson 98 High Not Available 1954 Navigation
Lake Isabel Colorado Pueblo 98 High Not Rated 1937 Recreation
Wahiawa Dam Hawaii Honolulu 98 High Poor 1906 Irrigation
Harry S. Truman Dam Missouri Benton 98 High Not Available 1979 Flood Risk Reduction
Granite Creek Arizona Yavapai 98 High Satisfactory 1920 Irrigation
Harry S. Truman Dam - Sterett Creek Dike Missouri Benton 98 High Not Available 1978 Flood Risk Reduction
Upper Van Tassell Wyoming Laramie 98 High Poor 1932 Water Supply
Prieto Dam Puerto Rico Maricao 98 High Satisfactory 1955 Hydroelectric
Sand Hollow North Dam Utah Washington 98 High Satisfactory 2002 Water Supply
Bon Tempe California Marin 98 High Satisfactory 1949 Other
Locust Creek (Pa-423) Pennsylvania Schuylkill 98 High Fair 1964 Flood Risk Reduction
South Fork No. 37 West Virginia Pendleton 98 High Satisfactory 1965 Flood Risk Reduction
South Fork No. 9 West Virginia Pendleton 98 High Fair 1963 Flood Risk Reduction
Willetto Dam New Mexico San Juan 98 High Not Available 1972
Rocky Gap Dam Maryland Allegany 98 High Poor 1969 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.