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Browse Dams

13,002 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 13,002 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
R. W. Matthews California Trinity 150 High Satisfactory 1962 Water Supply
East Branch Colorado Grand 150 Significant Satisfactory 1971 Water Supply
Pea Ridge Tailings Dam Missouri Washington 150 High Satisfactory 1980 Tailings
Thorpe North Carolina Jackson 150 High Satisfactory 1941 Hydroelectric
Jerry Creek #2 Colorado Mesa 150 High Satisfactory 1978 Water Supply
Langdale Georgia Harris 150 Low Satisfactory 1924 Hydroelectric
Sawpit California Los Angeles 150 High Satisfactory 1927 Flood Risk Reduction
Stagecoach Colorado Routt 150 High Satisfactory 1988 Water Supply
Little River South Carolina Oconee 150 High Satisfactory 1969 Hydroelectric
Ler Crystal Springs California San Mateo 149 High Satisfactory 1888 Water Supply
Simon Freese Dam Texas Coleman 149 High Satisfactory 1989 Water Supply
Moore New Hampshire Grafton 149 High Satisfactory 1957 Hydroelectric
Berry Creek Oregon Douglas 148 High Satisfactory 1980 Water Supply
Los Padres California Monterey 148 High Satisfactory 1949 Other
Bagnell Missouri Miller 148 High Satisfactory 1931 Hydroelectric
Joe Wright Colorado Larimer 148 High Satisfactory 1979 Water Supply
Santa Cruz Dam New Mexico Santa Fe 147 High Satisfactory 1929 Irrigation
Puddingstone California Los Angeles 147 High Satisfactory 1928 Flood Risk Reduction
Middlefield Reservoir California Alameda 147 High Satisfactory 1958 Water Supply
Buick Tailings Dam Missouri Reynolds 147 High Satisfactory 1981 Tailings
Wood Ranch California Ventura 146 High Satisfactory 1965 Water Supply
Horne No 5 Slurry Pennsylvania Washington 146 High Satisfactory 1984 Other
Spier Falls New York Warren 146 High Satisfactory 1903 Hydroelectric
Buchanan Dam Texas Burnet 146 High Satisfactory 1937 Irrigation
Palisades Reservoir California Orange 146 High Satisfactory 1963 Water Supply
Dry Comal Ck FRS 11 Texas Comal 146 High Satisfactory 2012
Cutter New Mexico San Juan 145 High Satisfactory 1972 Irrigation
Young Mill Tailings Dam Tennessee Jefferson 145 Significant Satisfactory 1998 Tailings
Cowlitz Falls Washington Lewis 145 Significant Satisfactory 1994 Hydroelectric
Development No. 2 Dam Oregon Clackamas 145 High Satisfactory 1962 Water Supply
Northfield Mt. - Main Dam Massachusetts Franklin 145 High Satisfactory 1973 Hydroelectric
Talbott Virginia Patrick 144 High Satisfactory 1938 Hydroelectric
Lower North River # 81c Virginia Rockingham 143 High Satisfactory — Flood Risk Reduction
Alpine California Marin 143 High Satisfactory 1917 Other
Thermalito Diversion California Butte 143 High Satisfactory 1967 Water Supply
Chabot California Alameda 142 High Satisfactory 1892 Water Supply
Blue Canyon Arizona Apache 142 High Satisfactory 1984 Water Supply
Big Sand Wash Dam Utah Duchesne 142 High Satisfactory 1968 Irrigation
Upper Oso California Orange 142 High Satisfactory 1979 Water Supply
Recapture Creek Utah San Juan 142 High Satisfactory 1984 Irrigation
Thompson Falls - Intake Dam B Montana Sanders 142 Low Satisfactory 1996 Hydroelectric
South Old Quarry Hollow Dam Missouri Ste. Genevieve 141 Low Satisfactory — Other
John T Montford Dam Texas Garza 141 High Satisfactory 1994 Irrigation
Bear Swamp - South Dike Massachusetts Franklin 140 High Satisfactory 1974 Hydroelectric
Gene Wash California San Bernardino 140 High Satisfactory 1937 Water Supply
Bliss Idaho Gooding 140 High Satisfactory 1950 Hydroelectric
East Fork (Tannasee Creek) North Carolina Jackson 140 High Satisfactory 1955 Hydroelectric
Marge Schott Lake Dam Ohio Clermont 140 High Satisfactory 2000 Recreation
Possum Point Ash Dam #D Virginia Prince William 140 High Satisfactory — Debris Control
Tallulah Falls Georgia Rabun 140 High Satisfactory 1913 Hydroelectric

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.