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 |
|---|---|---|---|---|---|---|---|
| Perris | California | Riverside | 130 | High | Satisfactory | 1973 | Water Supply |
| Los Angeles Reservoir | California | Los Angeles | 130 | High | Satisfactory | 1977 | Other |
| 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 |
| Balsam Meadow Forebay Main | California | Fresno | 123 | High | Satisfactory | 1986 | Hydroelectric |
| Lake Mission Viejo | California | Orange | 123 | High | Poor | 1976 | Water Supply |
| Henshaw | California | San Diego | 123 | High | Satisfactory | 1923 | Water Supply |
| Bucks Lake | California | Plumas | 123 | High | Satisfactory | 1928 | Hydroelectric |
| 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 |
| Big Creek | California | Tuolumne | 120 | High | Satisfactory | 1969 | Water Supply |
| Red Mountain Reservoir | California | San Diego | 120 | High | Satisfactory | 1985 | Water Supply |
| Big Creek Dam No. 2 | California | Fresno | 120 | High | Satisfactory | 1917 | Hydroelectric |
| Edwards Reservoir | California | Santa Barbara | 120 | High | Satisfactory | 1985 | Water Supply |
| Tiger Creek Afterbay | California | Amador | 120 | High | Fair | 1931 | Hydroelectric |
| Villa Park | California | Orange | 118 | High | Satisfactory | 1963 | Flood Risk Reduction |
| Green Verdugo | California | Los Angeles | 118 | High | Satisfactory | 1953 | Water Supply |
| Uvas | California | Santa Clara | 118 | High | Satisfactory | 1957 | Water Supply |
| Lake Temescal | California | Alameda | 116 | High | Satisfactory | 1869 | Water Supply |
| Dixon | California | San Diego | 116 | High | Satisfactory | 1970 | Water Supply |
| Boca Dam | California | Nevada | 116 | High | Not Available | 1939 | Hydroelectric |
| Tiger Creek Regulator | California | Amador | 115 | Significant | Fair | 1931 | Hydroelectric |
| Seeger | California | Marin | 115 | High | Satisfactory | 1961 | Other |
| Grizzly Valley | California | Plumas | 115 | High | Satisfactory | 1966 | Water Supply |
| Kerckhoff | California | Madera | 114 | Low | Satisfactory | 1920 | Hydroelectric |
| Thompson | California | Los Angeles | 114 | Significant | Satisfactory | 1925 | Water Supply |
| Jeff Davis | California | Calaveras | 114 | High | Satisfactory | 1973 | Water Supply |
| Eagle Rock | California | Los Angeles | 113 | High | Fair | 1953 | Other |
| El Toro Reservoir | California | Orange | 113 | High | Satisfactory | 1967 | Water Supply |
| Antelope | California | Plumas | 113 | High | Satisfactory | 1964 | Water Supply |
| Martis Creek Dam | California | Nevada | 113 | High | Not Available | 1972 | Flood Risk Reduction |
| Cresta | California | Plumas | 113 | High | Satisfactory | 1949 | Hydroelectric |
| Sweetwater Main | California | San Diego | 112 | High | Fair | 1888 | Water Supply |
| Cpud Middle Fork | California | Calaveras | 112 | High | Satisfactory | 1939 | Hydroelectric |
| Turner | California | San Diego | 111 | High | Satisfactory | 1971 | Water Supply |
| Upper Stone Canyon | California | Los Angeles | 111 | Low | Satisfactory | 1954 | Water Supply |
| Pit No. 4 Diversion | California | Shasta | 110 | High | Satisfactory | 1927 | Hydroelectric |
| 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 |
| 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.