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
Belews Lake Dam North Carolina Rockingham 170 High Fair 1972 Other
Keowee South Carolina Oconee 170 High Satisfactory 1971 Hydroelectric
Quabbin Winsor Dam Massachusetts Hampshire 170 High Satisfactory 1939 Water Supply
West Dam, Bad Creek South Carolina Oconee 170 High Satisfactory 1991 Hydroelectric
Big Creek Dam No. 1 California Fresno 170 High Fair 1917 Hydroelectric
Comerford New Hampshire Grafton 170 High Satisfactory 1930 Hydroelectric
Blenheim - Gilboa Upper New York Schoharie 170 High Satisfactory 1974 Hydroelectric
Bath County P S Lower Reservoir - Lower Dam Virginia Bath 170 High Satisfactory 1984 Hydroelectric
C.C. Cragin Dam Arizona Coconino 170 High Not Available 1964 Hydroelectric
Bill Evans Dam New Mexico Grant 170 High Satisfactory 1969 Other
Homestake Tailings California Lake 169 High Satisfactory 1990 Water Supply
Lucchetti Dam Puerto Rico Yauco 169 High Satisfactory 1952 Irrigation
Fairfield Dam C South Carolina Fairfield 169 High Satisfactory 1977 Hydroelectric
Gibraltar California Santa Barbara 169 High Satisfactory 1920 Other
Fairfield Dam A South Carolina Fairfield 169 High Satisfactory 1977 Hydroelectric
Kirwin Dam Kansas Phillips 169 High Not Available 1955 Flood Risk Reduction
Gs Dd No C-127 Kansas Jackson 169 Low - 1996 Flood Risk Reduction
Fairfield Dam D South Carolina Fairfield 169 High Satisfactory 1977 Hydroelectric
Junction California El Dorado 168 Significant Satisfactory 1962 Hydroelectric
Martin Alabama Tallapoosa 168 High Fair 1926 Hydroelectric
Priest California Tuolumne 168 High Satisfactory 1923 Other
Keyhole Dam Wyoming Crook 168 High Not Available 1952 Flood Risk Reduction
Encino California Los Angeles 168 High Satisfactory 1924 Water Supply
Kensico Dam New York Westchester 168 High Satisfactory 1916 Water Supply
Los Banos Creek Detention Dam California Merced 167 High Not Available 1965 Flood Risk Reduction
Nolin River Dam Kentucky Edmonson 167 High Not Available 1963 Flood Risk Reduction
Robert C. Byrd Locks and Dam West Virginia Mason 167 Significant Not Available 1937 Navigation
Robert Moses - St. Lawrence New York St. Lawrence 167 High Satisfactory 1958 Hydroelectric
Galesville Oregon Douglas 167 High Satisfactory 1985 Irrigation
George B Stevenson Pennsylvania Cameron 166 High Satisfactory 1956 Flood Risk Reduction
Whitney Dam - Kopperl Levee Texas Bosque 166 High Not Available 1951 Flood Risk Reduction
Prosser Creek Dam California Nevada 166 High Not Available 1962 Water Supply
Whitney Dam Texas Hill 166 High Not Available 1951 Flood Risk Reduction
Lopez California San Luis Obispo 166 High Satisfactory 1969 Water Supply
High Savery Wyoming Carbon 165 High Fair 2003 Irrigation
McKay Dam Oregon Umatilla 165 High Not Available 1927 Flood Risk Reduction
Barney Oregon Washington 165 High Satisfactory 1998 Water Supply
Balch Afterbay California Fresno 165 High Satisfactory 1928 Hydroelectric
Medina Lake Dam Texas Medina 165 High Satisfactory 1913 Irrigation
Morgan Dam New Mexico San Juan 165 High Satisfactory 1961 Other
Denison Dam - Cumberland Levee Oklahoma Bryan 165 High Not Available 1944 Flood Risk Reduction
Cle Elum Dam Washington Kittitas 165 High Not Available 1933 Flood Risk Reduction
Folsom Mormon Island Auxiliary Dam California Sacramento 165 High Not Available 1955 Flood Risk Reduction
Alvin R. Bush Dam Pennsylvania Clinton 165 High Not Available 1962 Flood Risk Reduction
Paddy Creek Embankment North Carolina Burke 165 High Satisfactory 1919 Hydroelectric
Platoro Dam Colorado Conejos 165 High Not Available 1951 Flood Risk Reduction
Miramar California San Diego 165 High Satisfactory 1960 Water Supply
Maerkle California San Diego 165 High Satisfactory 1963 Water Supply
Medicine Creek Dam Nebraska Frontier 165 High Not Available 1949 Flood Risk Reduction
Lake Las Vegas Dam Nevada Clark 165 Significant Fair 1991 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.