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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
Ice House Main California El Dorado 152 High Fair 1959 Hydroelectric
Belden Forebay California Plumas 152 High Fair 1958 Hydroelectric
Vail California Riverside 152 High Fair 1949 Water Supply
Little Panoche Detention California Fresno 151 High Not Available 1966 Flood Risk Reduction
San Justo Dam California San Benito 151 High Not Available 1987 Irrigation
R. W. Matthews California Trinity 150 High Satisfactory 1962 Water Supply
Sawpit California Los Angeles 150 High Satisfactory 1927 Flood Risk Reduction
Ler Crystal Springs California San Mateo 149 High Satisfactory 1888 Water Supply
Florence Lake California Fresno 149 High Fair 1926 Hydroelectric
Savage California San Diego 149 High Poor 1919 Water Supply
Los Padres California Monterey 148 High Satisfactory 1949 Other
Puddingstone California Los Angeles 147 High Satisfactory 1928 Flood Risk Reduction
Middlefield Reservoir California Alameda 147 High Satisfactory 1958 Water Supply
Palisades Reservoir California Orange 146 High Satisfactory 1963 Water Supply
Wood Ranch California Ventura 146 High Satisfactory 1965 Water Supply
Folsom Left Wing California Sacramento 145 High Not Available 1956 Flood Risk Reduction
Folsom Right Wing California Sacramento 145 High Not Available 1956 Flood Risk Reduction
Crane Valley California Madera 145 High Fair 1910 Hydroelectric
Lake Fordyce California Nevada 145 High Poor 1873 Hydroelectric
Richard L. Schafer Dam California Tulare 145 High Not Available 1961 Flood Risk Reduction
Strawberry California Tuolumne 143 High Fair 1916 Hydroelectric
Thermalito Diversion California Butte 143 High Satisfactory 1967 Water Supply
Alpine California Marin 143 High Satisfactory 1917 Other
Guadalupe California Santa Clara 142 High Poor 1935 Water Supply
Upper Oso California Orange 142 High Satisfactory 1979 Water Supply
Chabot California Alameda 142 High Satisfactory 1892 Water Supply
Gene Wash California San Bernardino 140 High Satisfactory 1937 Water Supply
Coyote California Santa Clara 140 High Poor 1936 Water Supply
Relief California Tuolumne 140 High Poor 1909 Hydroelectric
Frenchman California Plumas 139 High Satisfactory 1961 Water Supply
Stony Gorge Dam California Glenn 139 High Not Available 1928 Water Supply
East Park Dam California Colusa 139 High Not Available 1910 Irrigation
Scott California Lake 138 High Fair 1921 Hydroelectric
Lauro Dam California Santa Barbara 137 High Not Available 1952 Water Supply
Tabeaud California Amador 136 High Poor 1901 Hydroelectric
Santiago Creek California Orange 136 High Poor 1933 Water Supply
Balch Diversion California Fresno 135 High Satisfactory 1927 Hydroelectric
Lake Hemet California Riverside 135 High Satisfactory 1895 Water Supply
Salinas Dam California San Luis Obispo 135 High Not Available 1941 Water Supply
Glen Anne Dam California Santa Barbara 135 High Not Available 1953 Irrigation
Pit No. 3 Diversion California Shasta 135 High Satisfactory 1925 Hydroelectric
Lake Almanor California Plumas 135 High Fair 1927 Hydroelectric
Camino California El Dorado 133 Low Satisfactory 1961 Hydroelectric
Lafayette California Contra Costa 132 High Fair 1929 Water Supply
Stevens Creek California Santa Clara 132 High Fair 1935 Water Supply
Lyons California Tuolumne 132 High Satisfactory 1930 Hydroelectric
La Grange California Stanislaus 131 Significant Satisfactory 1893
Lake Hodges California San Diego 131 High Unsatisfactory 1918 Water Supply
San Dimas California Los Angeles 131 High Satisfactory 1922 Flood Risk Reduction
Ortega Dam California Santa Barbara 131 High Not Available 1956 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.