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Browse Dams

1,534 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,534 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
Righetti California San Luis Obispo 83 High Satisfactory 1966 Other
Lake Frey California Solano 83 High Fair 1894 Water Supply
Sawpit Debris Basin California Los Angeles 82 High Fair 1955 Debris Control
Palos Verdes Reservoir California Los Angeles 82 High Satisfactory 1939 Water Supply
North California Contra Costa 82 High Satisfactory 1961 Water Supply
Upper San Fernando California Los Angeles 82 Low Satisfactory 1921 Other
Hillside California Inyo 82 High Satisfactory 1910 Hydroelectric
Alpine Main California Alpine 81 High Satisfactory 1891 Hydroelectric
Forbestown Diversion California Butte 81 Low Satisfactory 1962 Hydroelectric
Haiwee California Inyo 81 High Fair 1913 Water Supply
Silt Pond California Ventura 80 High Not Available — Other
Kimball Creek California Napa 80 High Satisfactory 1939 Water Supply
Silt Pond California Los Angeles 80 High Not Available — Other
Andrew Cademartori California Calaveras 80 High Satisfactory 1983 Other
Bear Valley California San Bernardino 80 High Satisfactory 1911 Water Supply
Gem Lake California Mono 80 High Poor 1917 Hydroelectric
Poe California Butte 80 Low Satisfactory 1958 Hydroelectric
Crawford Ranch California Mendocino 80 High Satisfactory 1972 Other
Pond 11 California Santa Clara 80 High Not Available — Other
Funks Dam California Colusa 80 Low Not Available 1975 Irrigation
Butt Valley California Plumas 80 High Satisfactory 1924 Hydroelectric
Pond 3 California San Joaquin 80 High Not Available — Other
Chesbro California Sacramento 79 High Satisfactory 1972 Water Supply
Lake Francis California Yuba 79 High Satisfactory 2000 Water Supply
Stanley A. Mahr Reservoir California San Diego 79 High Satisfactory 1981 Water Supply
Rattlesnake Canyon California Orange 79 High Fair 1959 Water Supply
Ler Van Norman Bypass California Los Angeles 78 Low Satisfactory 1970 Other
Deer Canyon Debris Basin California San Bernardino 78 High Satisfactory 1980 Debris Control
Dos Pueblos California Santa Barbara 78 High Satisfactory 1946 Water Supply
Upper Otay California San Diego 78 Low Satisfactory 1901 Water Supply
Lake County Sanitation District 2 California Lake 77 High Satisfactory 1976 Water Supply
Chorro Creek California San Luis Obispo 77 High Satisfactory 1941 Water Supply
Upper Bear California Amador 77 High Satisfactory 1900 Hydroelectric
Suttenfield California Sonoma 76 High Fair 1938 Water Supply
Mill Creek California Santa Cruz 76 High Fair 1889 Water Supply
Senior Canyon California Ventura 76 High Satisfactory 1964 Water Supply
Live Oak California Los Angeles 76 High Satisfactory 1922 Flood Risk Reduction
Greystone Reservoir California Los Angeles 75 High Satisfactory 1970 Water Supply
Big Creek Dam No. 4 California Fresno 75 Low Satisfactory 1913 Hydroelectric
Danville California Contra Costa 75 High Satisfactory 1961 Water Supply
Gasburg Creek Dike California Tuolumne 75 High Satisfactory 1971 Flood Risk Reduction
Owens Dam California Mariposa 75 High Not Available 1949 Flood Risk Reduction
Wastewater Storage California Placer 75 Low Satisfactory 1978 Water Supply
Anthony House California Nevada 75 High Satisfactory 1970 Water Supply
Hland Creek California Lake 75 High Satisfactory 1962 Flood Risk Reduction
Lake Valley Main California Placer 75 High Satisfactory 1889 Hydroelectric
Merlo California Sonoma 74 High Satisfactory 1982 Other
Meadow Lake California Alpine 74 Low Satisfactory 1903 Hydroelectric
Gerle Creek California El Dorado 74 Low Satisfactory 1962 Hydroelectric
Mockingbird Canyon California Riverside 74 High Satisfactory 1914 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.