Browse Dams

92,766 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 92,766 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.

Name State County Height (ft) Hazard Condition Year Purpose
Big Island Pond Dam Virginia Bedford 99 Low Fair - Other
West Newton Sludge Pennsylvania Westmoreland 99 Low Unsatisfactory - Other
Lost Creek Dam Texas Jack 99 High Fair 1991 Water Supply
Bear Canyon Dam New Mexico Grant 99 High Poor 1937 Irrigation
South Fourche Lafave Wid Site 5 Arkansas Perry 99 Low Poor 1997 Flood Risk Reduction
Willow Creek Arizona Yavapai 99 High Satisfactory 1936 Irrigation
Carbon Canyon Dam California Orange 99 High Not Available 1961 Flood Risk Reduction
Moss Lake Dam North Carolina Cleveland 99 High Poor 1973 Water Supply
Bluewater Dam New Mexico Cibola 99 High Fair 1927 Irrigation
Paradise Fossil Plant - Coal Wash Fines Pond #3 Kentucky Muhlenberg 99 Low Not Available 1994 Tailings
Lower Bucks Lake California Plumas 99 High Fair 1928 Hydroelectric
Lake Shepherd Springs Dam (Breached) (Deleted) Arkansas Crawford 99 High Not Rated 1954 Water Supply
Crow Montana Lake 99 High Poor 1933 Irrigation
Max Starcke Dam Texas Burnet 99 Significant Satisfactory 1951 Hydroelectric
Hulet Idaho Owyhee 99 High Fair 1976 Other
Tillery North Carolina Stanly 99 High Satisfactory 1928 Hydroelectric
Wister Dam Oklahoma Le Flore 99 High Not Available 1949 Flood Risk Reduction
Lake Leon Dam Texas Eastland 99 High Satisfactory 1954 Water Supply
Gulf Island Maine Androscoggin 99 High Satisfactory 1926 Hydroelectric
El Dorado Dam Kansas Butler 99 High Not Available 1981 Flood Risk Reduction
Fish Creek Dam Texas Cooke 99 Significant Not Rated 1966 Water Supply
Little Seneca Dam Maryland Montgomery 99 High Fair 1984 Water Supply
Celanese Acetate Pond A Virginia Giles 99 High Satisfactory - Other
Gaston North Carolina Northampton 99 High Poor 1963 Hydroelectric
National Lead Industries Dam Missouri Washington 99 High Satisfactory 1959 Tailings
Brand Park California Los Angeles 99 High Satisfactory 1930 Water Supply
Clarence J. Brown Dam Ohio Clark 98 High Not Available 1973 Flood Risk Reduction
Old Hickory Lock and Dam Tennessee Davidson 98 High Not Available 1954 Navigation
Willetto Dam New Mexico San Juan 98 High Not Available 1972
Upper Van Tassell Wyoming Laramie 98 High Poor 1932 Water Supply
Prieto Dam Puerto Rico Maricao 98 High Satisfactory 1955 Hydroelectric
Locust Creek (Pa-423) Pennsylvania Schuylkill 98 High Fair 1964 Flood Risk Reduction
South Fork No. 9 West Virginia Pendleton 98 High Fair 1963 Flood Risk Reduction
Upper Highline Colorado Mesa 98 High Satisfactory 1967 Recreation
Mission Montana Lake 98 High Fair 1935 Irrigation
Rocky Gap Dam Maryland Allegany 98 High Poor 1969 Water Supply
Greers Ferry Dam - Saddle Dike 1 Arkansas Cleburne 98 High Not Available 1962 Flood Risk Reduction
Cow Creek Iwr Auxiliary Dam Oregon Douglas 98 High Satisfactory 2007 Water Supply
Glastowbury Dam Tennessee Cumberland 98 Significant Satisfactory 1979 Recreation
Lone Pine Arizona Navajo 98 Low Satisfactory 1936 Flood Risk Reduction
Bon Tempe California Marin 98 High Satisfactory 1949 Other
Harry S. Truman Dam - Sterett Creek Dike Missouri Benton 98 High Not Available 1978 Flood Risk Reduction
South River Dam #10a Virginia Augusta 98 High Satisfactory - Flood Risk Reduction
South Fork No. 37 West Virginia Pendleton 98 High Satisfactory 1965 Flood Risk Reduction
Sand Hollow North Dam Utah Washington 98 High Satisfactory 2002 Water Supply
Lake Isabel Colorado Pueblo 98 High Not Rated 1937 Recreation
Patterson Creek No. 13 Dam West Virginia Grant 98 High Fair 1967 Flood Risk Reduction
Grizzly Forebay California Plumas 98 High Satisfactory 1928 Hydroelectric
Granby Dike 1 Colorado Grand 98 High Not Available 1950 Hydroelectric
Wahiawa Dam Hawaii Honolulu 98 High Poor 1906 Irrigation

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.