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 |
|---|---|---|---|---|---|---|---|
| Hidden Dam | California | Madera | 184 | High | Not Available | 1975 | Flood Risk Reduction |
| New Upper San Leandro | California | Alameda | 182 | High | Satisfactory | 1977 | Other |
| Sly Park | California | El Dorado | 182 | High | Satisfactory | 1955 | Water Supply |
| Newell | California | Santa Cruz | 182 | High | Satisfactory | 1960 | Water Supply |
| Morena | California | San Diego | 181 | High | Poor | 1912 | Water Supply |
| Shaver Lake Dam | California | Fresno | 180 | High | Satisfactory | 1927 | Hydroelectric |
| Coyote Valley Dam | California | Mendocino | 180 | High | Not Available | 1959 | Flood Risk Reduction |
| Upper Chiquita | California | Orange | 177 | High | Satisfactory | 2012 | Water Supply |
| Scotts Flat Dam | California | Nevada | 175 | High | Fair | 1948 | Fire Protection, Stock, Or ... |
| Paradise | California | Butte | 175 | High | Satisfactory | 1957 | Water Supply |
| Bowman Main Dam | California | Nevada | 175 | High | Satisfactory | 1926 | Irrigation |
| Main Dam | California | Yuba | 172 | High | Satisfactory | 1963 | Irrigation |
| Diemer No. 8 | California | Orange | 172 | Significant | Satisfactory | 1968 | Water Supply |
| Camanche Main Dam | California | San Joaquin | 171 | High | Satisfactory | 1964 | Water Supply |
| San Pablo | California | Contra Costa | 170 | High | Satisfactory | 1920 | Water Supply |
| Big Creek Dam No. 1 | California | Fresno | 170 | High | Fair | 1917 | Hydroelectric |
| Gibraltar | California | Santa Barbara | 169 | High | Satisfactory | 1920 | Other |
| Homestake Tailings | California | Lake | 169 | High | Satisfactory | 1990 | Water Supply |
| Priest | California | Tuolumne | 168 | High | Satisfactory | 1923 | Other |
| Encino | California | Los Angeles | 168 | High | Satisfactory | 1924 | Water Supply |
| Junction | California | El Dorado | 168 | Significant | Satisfactory | 1962 | Hydroelectric |
| Los Banos Creek Detention Dam | California | Merced | 167 | High | Not Available | 1965 | Flood Risk Reduction |
| Prosser Creek Dam | California | Nevada | 166 | High | Not Available | 1962 | Water Supply |
| Lopez | California | San Luis Obispo | 166 | High | Satisfactory | 1969 | Water Supply |
| Big Creek Dam No. 3 | California | Fresno | 165 | High | Satisfactory | 1913 | Hydroelectric |
| Balch Afterbay | California | Fresno | 165 | High | Satisfactory | 1928 | Hydroelectric |
| Folsom Mormon Island Auxiliary Dam | California | Sacramento | 165 | High | Not Available | 1955 | Flood Risk Reduction |
| Miramar | California | San Diego | 165 | High | Satisfactory | 1960 | Water Supply |
| Dutch Flat Afterbay Dam | California | Nevada | 165 | Low | Satisfactory | 1965 | Irrigation |
| Maerkle | California | San Diego | 165 | High | Satisfactory | 1963 | Water Supply |
| Vermilion Valley | California | Fresno | 165 | High | Poor | 1954 | Hydroelectric |
| Rector Creek | California | Napa | 164 | High | Satisfactory | 1946 | Water Supply |
| Matilija | California | Ventura | 163 | High | Poor | 1949 | Other |
| Poway | California | San Diego | 162 | High | Satisfactory | 1971 | Water Supply |
| Mark Edson | California | El Dorado | 162 | High | Satisfactory | 1962 | Water Supply |
| Sutherland | California | San Diego | 162 | High | Satisfactory | 1954 | Other |
| Barrett | California | San Diego | 161 | High | Poor | 1922 | Water Supply |
| Ponderosa Dam | California | Butte | 160 | Low | Satisfactory | 1962 | Hydroelectric |
| San Antonio Dam | California | San Bernardino | 160 | High | Not Available | 1956 | Flood Risk Reduction |
| Brick Flat Pit Containment | California | Shasta | 160 | Low | Satisfactory | 1994 | Water Supply |
| Garvey Reservoir | California | Los Angeles | 160 | High | Satisfactory | 1954 | Water Supply |
| Juncal | California | Santa Barbara | 160 | High | Satisfactory | 1930 | Other |
| Westlake Reservoir | California | Los Angeles | 158 | High | Satisfactory | 1972 | Water Supply |
| Keswick Dam | California | Shasta | 157 | High | Not Available | 1950 | Flood Risk Reduction |
| Santa Ynez Canyon | California | Los Angeles | 157 | High | Satisfactory | 1968 | Other |
| Black Butte Dam | California | Tehama | 156 | High | Not Available | 1963 | Flood Risk Reduction |
| Big Creek Dam No. 6 | California | Madera | 155 | High | Satisfactory | 1923 | Hydroelectric |
| Slickrock Creek | California | Shasta | 155 | Significant | Satisfactory | 2004 | Water Supply |
| North Fork Dam | California | Placer | 155 | Significant | Not Available | 1939 | Debris Control |
| Big Dalton | California | Los Angeles | 153 | High | Satisfactory | 1929 | 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.