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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.

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Name State County Height (ft) Hazard Condition Year Purpose
Kilmer California Tuolumne 31 Low Satisfactory 1953 Water Supply
Corral California Tehama 31 Low Satisfactory 1959 Water Supply
Madera Lake California Madera 31 High Satisfactory 1958 Water Supply
Johnston California San Mateo 31 Low Satisfactory 1919 Water Supply
Kramer California Lassen 31 Low Satisfactory 1937 Other
Lema California Shasta 31 Low Satisfactory 1957 Water Supply
18 Mg Walteria California Los Angeles 31 High Satisfactory 1987 Water Supply
Rancho Rubini California Colusa 31 High Poor 1955 Water Supply
Stanford Heights California San Francisco 31 High Satisfactory 1928 Water Supply
Boyd No. 1 California Shasta 31 High Satisfactory 1971 Water Supply
Perris Hill Reservoir California San Bernardino 31 High Satisfactory 1962 Water Supply
New Woodbridge Diversion California San Joaquin 31 Significant Satisfactory 2006 Other
Truett California Shasta 31 High Satisfactory 1958 Water Supply
Whispering Oaks California Mariposa 31 Low Satisfactory 1968 Water Supply
Lake Los Carneros California Santa Barbara 31 High Satisfactory 1932 Water Supply
Upper Blue Lake California Alpine 31 High Satisfactory 1901 Hydroelectric
El Dorado Hills California El Dorado 31 High Satisfactory 1980 Water Supply
Bean Holl #2 California San Mateo 31 Low Satisfactory 1938 Water Supply
Carpinteria Dam California Santa Barbara 31 High Not Available 1953 Irrigation
Lower Peak Lake Main California Placer 31 High Satisfactory 1860 Hydroelectric
Tennessee Valley Dam California Marin 30 High Not Available —
Dyer California Alameda 30 High Fair 2011 Water Supply
Jenks Lake - Dam California San Bernardino 30 High Not Rated 1875 Fish and Wildlife Pond
Kelley Hot Spring Fish California Modoc 30 Significant Poor —
Fresh Water California Los Angeles 30 High Not Available — Water Supply
Mallard California Contra Costa 30 High Satisfactory 1930 Water Supply
Almond California Alameda 30 High Satisfactory 1954 Water Supply
Duvall California Napa 30 High Satisfactory 1940 Other
Ross No. 1 California Shasta 30 Significant Satisfactory 1957 Water Supply
Mendiboure California Lassen 30 High Satisfactory 1949 Water Supply
Le California Sonoma 30 High Satisfactory 1959 Water Supply
Metzger California Mariposa 30 Low Satisfactory 1956 Flood Risk Reduction
30 Mg Central Reservoir California Orange 30 High Satisfactory 1924 Water Supply
Electra Afterbay California Calaveras 30 Low Satisfactory 1948 Hydroelectric
Meadow Lane California Sonoma 30 High Satisfactory 1979 Water Supply
Upper Pond California San Mateo 30 Significant Not Available — Other
Emerson California Lassen 30 High Satisfactory — Other
Harold Reservoir California Los Angeles 30 High Satisfactory 1891 Water Supply
Sinaloa Lake California Ventura 30 High Satisfactory 1925 Other
Clearwell Phase 2 California Contra Costa 30 Low Satisfactory 1977 Water Supply
Bar X Ranch Reservoir #2 California Lake 30 High Satisfactory 2003 Other
Pond # 5 Process Water, Cells A Through D California Monterey 30 Significant Not Available — Other
Antioch Reservoir California Contra Costa 30 High Satisfactory 1935 Flood Risk Reduction
Declez Retention California Riverside 30 High Satisfactory 1984 Flood Risk Reduction
San Vicente Storage Pond 2 California San Diego 30 High Satisfactory 1991 Water Supply
Agnew Lake California Mono 30 High Poor 1916 Hydroelectric
Dry Creek California Contra Costa 30 High Satisfactory 1963 Flood Risk Reduction
Pine Creek Detention California Contra Costa 30 High Satisfactory 1981 Flood Risk Reduction
Folsom Dike 4 California Placer 30 High Not Available 1956 Flood Risk Reduction
B.F. Sisk Dike California Merced 30 High Not Available 1967 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.