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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
Los Angeles Reservoir California Los Angeles 130 High Satisfactory 1977 Other
Perris California Riverside 130 High Satisfactory 1973 Water Supply
Rock Creek California Plumas 126 High Satisfactory 1950 Hydroelectric
Long Valley California Mono 126 High Satisfactory 1941 Water Supply
Chili Bar California El Dorado 126 High Fair 1964 Hydroelectric
Conn Creek California Napa 125 High Fair 1946 Water Supply
Ler San Fernando California Los Angeles 125 High Satisfactory 1918 Water Supply
Hernandez California San Benito 124 High Satisfactory 1962 Water Supply
Summit Reservoir California Solano 124 High Satisfactory 1968 Water Supply
Littlerock California Los Angeles 124 High Satisfactory 1924 Other
Bucks Lake California Plumas 123 High Satisfactory 1928 Hydroelectric
Henshaw California San Diego 123 High Satisfactory 1923 Water Supply
Balsam Meadow Forebay Main California Fresno 123 High Satisfactory 1986 Hydroelectric
Lake Mission Viejo California Orange 123 High Poor 1976 Water Supply
Soulajule California Marin 122 High Satisfactory 1979 Water Supply
Lost Creek California Butte 122 High Fair 1924 Hydroelectric
Fairmont California Los Angeles 121 High Satisfactory 1912 Flood Risk Reduction
Edwards Reservoir California Santa Barbara 120 High Satisfactory 1985 Water Supply
Big Creek Dam No. 2 California Fresno 120 High Satisfactory 1917 Hydroelectric
Red Mountain Reservoir California San Diego 120 High Satisfactory 1985 Water Supply
Tiger Creek Afterbay California Amador 120 High Fair 1931 Hydroelectric
Big Creek California Tuolumne 120 High Satisfactory 1969 Water Supply
Uvas California Santa Clara 118 High Satisfactory 1957 Water Supply
Green Verdugo California Los Angeles 118 High Satisfactory 1953 Water Supply
Villa Park California Orange 118 High Satisfactory 1963 Flood Risk Reduction
Boca Dam California Nevada 116 High Not Available 1939 Hydroelectric
Dixon California San Diego 116 High Satisfactory 1970 Water Supply
Lake Temescal California Alameda 116 High Satisfactory 1869 Water Supply
Grizzly Valley California Plumas 115 High Satisfactory 1966 Water Supply
Seeger California Marin 115 High Satisfactory 1961 Other
Tiger Creek Regulator California Amador 115 Significant Fair 1931 Hydroelectric
Jeff Davis California Calaveras 114 High Satisfactory 1973 Water Supply
Kerckhoff California Madera 114 Low Satisfactory 1920 Hydroelectric
Thompson California Los Angeles 114 Significant Satisfactory 1925 Water Supply
Cresta California Plumas 113 High Satisfactory 1949 Hydroelectric
Eagle Rock California Los Angeles 113 High Fair 1953 Other
Martis Creek Dam California Nevada 113 High Not Available 1972 Flood Risk Reduction
Antelope California Plumas 113 High Satisfactory 1964 Water Supply
El Toro Reservoir California Orange 113 High Satisfactory 1967 Water Supply
Cpud Middle Fork California Calaveras 112 High Satisfactory 1939 Hydroelectric
Sweetwater Main California San Diego 112 High Fair 1888 Water Supply
Turner California San Diego 111 High Satisfactory 1971 Water Supply
Upper Stone Canyon California Los Angeles 111 Low Satisfactory 1954 Water Supply
Milliken California Napa 110 High Satisfactory 1924 Water Supply
Almaden California Santa Clara 110 High Poor 1936 Other
Murray California San Diego 110 High Fair 1918 Water Supply
Pit No. 4 Diversion California Shasta 110 High Satisfactory 1927 Hydroelectric
Bowman Arch California Nevada 109 High Satisfactory 1927 Irrigation
Robert A Skinner California Riverside 109 High Satisfactory 1973 Other
Devils Gate California Los Angeles 108 High Satisfactory 1920 Flood Risk Reduction

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.