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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.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
Hj Mills Reclamation California Riverside 48 Significant Satisfactory 1996 Water Supply
Clear Lake Dam California Modoc 48 High Not Available 1910 Irrigation
Blanchard-Offner California Napa 47 High Satisfactory 1963 Other
Veterans Home California Napa 47 High Fair 1908 Water Supply
Pit No. 1 Forebay California Shasta 47 High Fair 1947 Hydroelectric
Chester Diversion California Plumas 47 High Satisfactory 1975 Flood Risk Reduction
Foote #4 California Sonoma 47 High Satisfactory 1976 Water Supply
Guzman Reservoir California Kern 47 High Satisfactory — Water Supply
Anderson Ranch California Nevada 47 Low Satisfactory 1989 Water Supply
Salt Springs Valley California Calaveras 47 High Poor 1882 Other
Williams Valley California Mendocino 47 Low Satisfactory 1965 Water Supply
Bottoms California Lake 47 High Satisfactory 1990 Water Supply
Lee Lake California Riverside 47 High Poor 1893 Water Supply
North Battle Creek California Shasta 47 High Satisfactory 1909 Hydroelectric
Burger California Modoc 47 Low Satisfactory 1968 Water Supply
La Tuna Debris Basin California Los Angeles 47 High Satisfactory 1960 Debris Control
Matthews California San Diego 47 Low Satisfactory 1967 Water Supply
Lake Chabot California Solano 47 High Satisfactory 1870 Other
B. J. Robinson California Napa 46 High Satisfactory 1957 Water Supply
Mabey Canyon California Riverside 46 High Satisfactory 1974 Flood Risk Reduction
Salinger California Sonoma 46 Low Satisfactory 1952 Water Supply
Fancher Creek California Fresno 46 High Satisfactory 1991 Flood Risk Reduction
Stough Debris Basin California Los Angeles 46 High Satisfactory 1961 Debris Control
Cajalco Creek California Riverside 46 Significant Satisfactory 2001 Debris Control
Fullerton Dam California Orange 46 High Not Available 1941 Flood Risk Reduction
Lake Wyandotte California Butte 46 High Satisfactory 1924 Other
Bap Pond 5 California Kern 46 Low Satisfactory 2008 Water Supply
Coastways California San Mateo 46 High Satisfactory 1951 Water Supply
Finnon Lake California El Dorado 46 Significant Satisfactory 2012 Water Supply
Olson California Napa 45 High Satisfactory 1955 Water Supply
Amethyst Basin California San Bernardino 45 High Satisfactory 2019 Flood Risk Reduction
Ferro Debris Basin California Ventura 45 Significant Satisfactory 1986 Debris Control
Round Valley California Lassen 45 Significant Satisfactory 1892 Water Supply
Klau Dam (Blm) California San Luis Obispo 45 Low Not Rated 1961 Water Supply
Big Rock Ranch California Marin 45 High Satisfactory 2002 Water Supply
Brand Debris Basin California Los Angeles 45 High Satisfactory 1965 Debris Control
Lake Sherwood California Ventura 45 High Satisfactory 1904 Water Supply
Lake Orinda California Contra Costa 45 High Satisfactory 1935 Water Supply
S-X California Modoc 45 Low Satisfactory 1917 Water Supply
Groveland Wastewater Reclamation #2 California Tuolumne 45 High Satisfactory 1981 Water Supply
Saddlebag Lake California Mono 45 High Satisfactory 1921 Hydroelectric
Iverson California Lassen 45 Low Satisfactory 1968 Water Supply
Electra Diversion California Amador 45 Low Satisfactory — Hydroelectric
Airport Reservoir D California Sonoma 45 Significant Satisfactory 2002 Water Supply
Yorba California Orange 45 High Satisfactory 1907 Flood Risk Reduction
Folsom Dike 6 California Placer 45 High Not Available 1956 Flood Risk Reduction
Crocker California San Mateo 45 High Satisfactory 1890 Water Supply
Chatsworth California Los Angeles 45 High Satisfactory 1918 Water Supply
Black Hawk California Madera 45 Low Satisfactory 1971 Water Supply
Heath Reservoir California Lassen 45 Low Satisfactory 1965 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.