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 |
|---|---|---|---|---|---|---|---|
| Lake Frey | California | Solano | 83 | High | Fair | 1894 | Water Supply |
| Righetti | California | San Luis Obispo | 83 | High | Satisfactory | 1966 | Other |
| Palos Verdes Reservoir | California | Los Angeles | 82 | High | Satisfactory | 1939 | Water Supply |
| North | California | Contra Costa | 82 | High | Satisfactory | 1961 | Water Supply |
| Hillside | California | Inyo | 82 | High | Satisfactory | 1910 | Hydroelectric |
| Upper San Fernando | California | Los Angeles | 82 | Low | Satisfactory | 1921 | Other |
| Sawpit Debris Basin | California | Los Angeles | 82 | High | Fair | 1955 | Debris Control |
| Forbestown Diversion | California | Butte | 81 | Low | Satisfactory | 1962 | Hydroelectric |
| Haiwee | California | Inyo | 81 | High | Fair | 1913 | Water Supply |
| Alpine Main | California | Alpine | 81 | High | Satisfactory | 1891 | Hydroelectric |
| Poe | California | Butte | 80 | Low | Satisfactory | 1958 | Hydroelectric |
| Silt Pond | California | Ventura | 80 | High | Not Available | - | Other |
| Gem Lake | California | Mono | 80 | High | Poor | 1917 | Hydroelectric |
| Pond 3 | California | San Joaquin | 80 | High | Not Available | - | Other |
| Kimball Creek | California | Napa | 80 | High | Satisfactory | 1939 | Water Supply |
| Funks Dam | California | Colusa | 80 | Low | Not Available | 1975 | Irrigation |
| Pond 11 | California | Santa Clara | 80 | High | Not Available | - | Other |
| Crawford Ranch | California | Mendocino | 80 | High | Satisfactory | 1972 | Other |
| Silt Pond | California | Los Angeles | 80 | High | Not Available | - | Other |
| Butt Valley | California | Plumas | 80 | High | Satisfactory | 1924 | Hydroelectric |
| Bear Valley | California | San Bernardino | 80 | High | Satisfactory | 1911 | Water Supply |
| Andrew Cademartori | California | Calaveras | 80 | High | Satisfactory | 1983 | Other |
| Lake Francis | California | Yuba | 79 | High | Satisfactory | 2000 | Water Supply |
| Chesbro | California | Sacramento | 79 | High | Satisfactory | 1972 | Water Supply |
| Rattlesnake Canyon | California | Orange | 79 | High | Fair | 1959 | Water Supply |
| Stanley A. Mahr Reservoir | California | San Diego | 79 | High | Satisfactory | 1981 | Water Supply |
| Ler Van Norman Bypass | California | Los Angeles | 78 | Low | Satisfactory | 1970 | Other |
| Dos Pueblos | California | Santa Barbara | 78 | High | Satisfactory | 1946 | Water Supply |
| Deer Canyon Debris Basin | California | San Bernardino | 78 | High | Satisfactory | 1980 | Debris Control |
| Upper Otay | California | San Diego | 78 | Low | Satisfactory | 1901 | Water Supply |
| Chorro Creek | California | San Luis Obispo | 77 | High | Satisfactory | 1941 | Water Supply |
| Lake County Sanitation District 2 | California | Lake | 77 | High | Satisfactory | 1976 | Water Supply |
| Upper Bear | California | Amador | 77 | High | Satisfactory | 1900 | Hydroelectric |
| Suttenfield | California | Sonoma | 76 | High | Fair | 1938 | Water Supply |
| Mill Creek | California | Santa Cruz | 76 | High | Fair | 1889 | Water Supply |
| Senior Canyon | California | Ventura | 76 | High | Satisfactory | 1964 | Water Supply |
| Live Oak | California | Los Angeles | 76 | High | Satisfactory | 1922 | Flood Risk Reduction |
| Gasburg Creek Dike | California | Tuolumne | 75 | High | Satisfactory | 1971 | Flood Risk Reduction |
| Big Creek Dam No. 4 | California | Fresno | 75 | Low | Satisfactory | 1913 | Hydroelectric |
| Lake Valley Main | California | Placer | 75 | High | Satisfactory | 1889 | Hydroelectric |
| Danville | California | Contra Costa | 75 | High | Satisfactory | 1961 | Water Supply |
| Anthony House | California | Nevada | 75 | High | Satisfactory | 1970 | Water Supply |
| Owens Dam | California | Mariposa | 75 | High | Not Available | 1949 | Flood Risk Reduction |
| Greystone Reservoir | California | Los Angeles | 75 | High | Satisfactory | 1970 | Water Supply |
| Wastewater Storage | California | Placer | 75 | Low | Satisfactory | 1978 | Water Supply |
| Hland Creek | California | Lake | 75 | High | Satisfactory | 1962 | Flood Risk Reduction |
| Merlo | California | Sonoma | 74 | High | Satisfactory | 1982 | Other |
| Meadow Lake | California | Alpine | 74 | Low | Satisfactory | 1903 | Hydroelectric |
| Sunset North Basin | California | San Francisco | 74 | High | Satisfactory | 1938 | Water Supply |
| Mockingbird Canyon | California | Riverside | 74 | High | Satisfactory | 1914 | 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.