Browse Dams

17,050 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 17,050 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
Massabesic Lake Dam New Hampshire Hillsborough 30 High Satisfactory 1873 Water Supply
Howe Reservoir Dam New Hampshire Cheshire 30 High Fair 1924 Recreation
Lee's Fishing Lake Dam West Virginia Lincoln 30 High Fair 1963 Other
Simmons Lake Dam Missouri Caldwell 30 High Not Rated 1977 Flood Risk Reduction
Bisbee Lake Dam Missouri Ray 30 High Not Rated 1968 Recreation
Long Creek Reservoir Dam Mississippi Lauderdale 30 High Satisfactory 1962 Flood Risk Reduction
Ballinger City Lake Dam Texas Runnels 30 High Poor 1947 Debris Control
Schultehenrich,Robert Dam Missouri St. Charles 30 High Not Rated 1964 Recreation
Sylvan Lake Dam Missouri St. Francois 30 High Not Rated 1958 Recreation
Lakenan Lake Dam Missouri Perry 30 High Not Rated 1966 Fire Protection, Stock, Or ...
Plat I Oregon Douglas 30 High Satisfactory 1967 Flood Risk Reduction
Lee Lake Dam Georgia Henry 30 High Not Rated 1981 Recreation
Freeman Dam North Carolina Henderson 30 High Fair - Recreation
Pointdexter Lake Dam Missouri Montgomery 30 High Not Rated 1975 Irrigation
Old Marsh Pond Dam Connecticut Litchfield 30 High Satisfactory 1913 Water Supply
Lake Lucern Dam Missouri Warren 30 High Not Rated 1971 Recreation
Brown Lake Dam Missouri Franklin 30 High Not Rated 1982
Thompson Lake Dam Missouri Andrew 30 High Not Rated 1936 Flood Risk Reduction
Overflow Weir Dam New Jersey Passaic 30 High Satisfactory 1928 Water Supply
Hall Lake Dam Missouri Atchison 30 High Not Rated 1972 Other
Lake Sheridan Dam Texas Colorado 30 High Fair 1967 Recreation
New Winterplace Dam West Virginia Raleigh 30 High Satisfactory 1984 Other
Upper Kohanza Lake Dam Connecticut Fairfield 30 High Satisfactory 1866 Water Supply
Lake Montebello Maryland Baltimore City 30 High Fair 1880 Other
Silver Lake Vermont Addison 30 High Satisfactory 1917 Hydroelectric
Bar X Ranch Reservoir #2 California Lake 30 High Satisfactory 2003 Other
Sanford Raw Water Reservoir Dam North Carolina Lee 30 High Fair 1993 Water Supply
Indian Orchard Massachusetts Hampden 30 High Satisfactory 1846 Hydroelectric
Forest Lake Dam Missouri St. Francois 30 High Not Rated - Recreation
Siegmund Lake Dam Missouri Warren 30 High Not Rated 1965 Recreation
Lake Trace Dam North Carolina Lee 30 High Fair 1971 Recreation
Galway Lake Dam New York Saratoga 30 High Satisfactory 1982 Recreation
Staffordville Reservoir Dam Connecticut Tolland 30 High Satisfactory 1850 Recreation
National Fruit Products Dam North Carolina Lincoln 30 High Fair - Irrigation
Moores Lake Dam Missouri Boone 30 High Not Rated 1904 Other
Crescent Lake Dam Missouri Franklin 30 High Not Rated 1965 Recreation
Lake Acres Dam Missouri Osage 30 High Not Rated 1955 Recreation
Seng Lake Dam Missouri Warren 30 High Not Rated 1972 Recreation
Plattsmouth 7-C Nebraska Cass 30 High Satisfactory 1959 Flood Risk Reduction
Kehr Lake Dam Missouri Gasconade 30 High Not Rated 1977 Recreation
Mildred Warner Dam Alabama Tuscaloosa 30 High Not Rated 1956 Recreation
Thunder Valley Farm Dam Missouri Crawford 30 High Not Rated 1971 Recreation
Lona Lou Lake Dam Missouri Bollinger 30 High Not Rated 1975 Fire Protection, Stock, Or ...
Broken Bow City Lake Oklahoma McCurtain 30 High Fair 1953 Recreation
Castle Lake Dam Georgia Fayette 30 High Poor -
Dd No 110 Kansas Cowley 30 High Fair 1989 Flood Risk Reduction
Isabel South Dakota Dewey 30 High Fair 1935 Recreation
Hale Lake Virginia Grayson 30 High Not Rated 1965 Recreation
Dolan Lake Dam Illinois Hamilton 30 High Not Available 1962 Recreation
Mount Higby Reservoir Dam Connecticut Middlesex 30 High Satisfactory 1897 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.