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 |
|---|---|---|---|---|---|---|---|
| Middle Lindsey | California | Nevada | 9 | Low | Satisfactory | 1870 | Hydroelectric |
| Rancho Cielito | California | San Bernardino | 9 | High | Satisfactory | 1912 | Water Supply |
| Upper Rock Lake Auxiliary | California | Nevada | 9 | Low | Satisfactory | 1855 | Hydroelectric |
| Sawmill Spillway | California | Nevada | 9 | Low | Satisfactory | 1910 | Irrigation |
| Lake Aloha Auxiliary No. 4 | California | El Dorado | 9 | Low | Satisfactory | 1917 | Hydroelectric |
| Green Tank | California | Modoc | 8 | Low | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Crowder Mtn | California | Modoc | 8 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Blue Lake | California | Lassen | 8 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Emigrant Spring | California | Modoc | 8 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Surveyors Valley | California | Modoc | 8 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Boles Meadow | California | Modoc | 8 | Low | Not Rated | 1986 | Fish and Wildlife Pond |
| Busters Reservoir | California | Lassen | 8 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Snag Lake | California | Sierra | 8 | Significant | Not Rated | 1899 | Other |
| Four Mile Valley N0 4 | California | Modoc | 8 | Low | Not Rated | 1951 | Fire Protection, Stock, Or ... |
| Upper Lindsey | California | Nevada | 8 | Low | Satisfactory | 1870 | Hydroelectric |
| Pit River Weir | California | Shasta | 8 | Low | Satisfactory | 1921 | Hydroelectric |
| Fall River Weir | California | Shasta | 8 | Low | Satisfactory | 1921 | Hydroelectric |
| Shaver Dike | California | Fresno | 8 | High | Satisfactory | 1982 | Hydroelectric |
| Telephone Flat | California | Modoc | 7 | Low | Not Rated | 1931 | Fire Protection, Stock, Or ... |
| Dead Horse Reservoir | California | Modoc | 7 | Low | Not Rated | 1931 | Fire Protection, Stock, Or ... |
| Reservoir N | California | Modoc | 7 | Low | Not Rated | 1977 | Irrigation |
| Buchanan | California | Modoc | 7 | Low | Not Rated | 1890 | Fire Protection, Stock, Or ... |
| Deadhorse Flat Reservoir | California | Modoc | 7 | Low | Not Rated | 1920 | Fire Protection, Stock, Or ... |
| Cummings Res No 2 | California | Modoc | 7 | Low | Not Rated | 1910 | Irrigation |
| Snowstorm Dam (Blm) | California | Lassen | 7 | Low | Not Rated | 1950 | Fire Protection, Stock, Or ... |
| East Boulder Lake | California | Siskiyou | 7 | Low | Not Rated | 1937 | Recreation |
| Lower Peak Lake Auxiliary | California | Placer | 7 | High | Satisfactory | 1860 | Hydroelectric |
| Utica Auxiliary No. 5 | California | Alpine | 7 | Low | Satisfactory | 1903 | Hydroelectric |
| Union Auxiliary No. 2 | California | Alpine | 7 | Low | Satisfactory | — | Hydroelectric |
| Union Auxiliary No. 7 | California | Alpine | 7 | Low | Satisfactory | 1910 | Hydroelectric |
| Black Butte Dam - Dike 6 | California | Tehama | 7 | Low | Not Available | 1963 | Flood Risk Reduction |
| Lake Mamie | California | Mono | 6 | Significant | Not Rated | 1968 | Water Supply |
| Faucherie Spillway Auxiliary | California | Nevada | 3 | High | Satisfactory | 1966 | Irrigation |
| Rio Bravo Canal | California | Kern | 1 | Significant | Not Available | 1988 | 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.