California Dams
1,436 dams tracked by the National Inventory of Dams
Total Dams
1,436
High Hazard
821
57.2%
Poor / Unsatisfactory
66
Average Age
77 yrs
Hazard Classification
High821 (57.2%)
Significant160 (11.1%)
Low455 (31.7%)
Condition Assessment
Satisfactory1,093 (76.1%)
Fair106 (7.4%)
Poor / Unsatisfactory66 (4.6%)
Not Rated171 (11.9%)
Federal
163
State
50
Local
322
Private
617
Tallest Dams
- New Bullards Bar645 ft
- New Melones Dam625 ft
- Shasta Dam602 ft
- Don Pedro Main585 ft
- Seven Oaks550 ft
High Hazard Dams
- New Bullards BarHigh
- New Melones DamHigh
- Shasta DamHigh
- Don Pedro MainHigh
- Seven OaksHigh
Poor Condition Dams
- CastaicPoor
- NacimientoPoor
- AndersonUnsatisfactory
- El CapitanPoor
- Santa FeliciaPoor
All Dams in California
Showing 51–75 of 106
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Spaulding No. 1 Nevada County | 277 | 1912 | High | Fair |
| Lake O'Neill Dam San Diego County | 17 | 1883 | High | Fair |
| Lake Frey Solano County | 83 | 1894 | High | Fair |
| Lake Combie Nevada County | 100 | 1928 | High | Fair |
| Lake Buck Sierra County | 37 | 1951 | Low | Fair |
| Lake Alta Placer County | 22 | 1862 | High | Fair |
| Lake Almanor Plumas County | 135 | 1927 | High | Fair |
| Lafayette Contra Costa County | 132 | 1929 | High | Fair |
| King Ridge Road Sonoma County | 52 | — | Low | Fair |
| J&T Cattle Company No. 2 Stanislaus County | 14 | 1980 | Low | Fair |
| J&T Cattle Company No. 1 Stanislaus County | 22 | 2013 | Low | Fair |
| Johnson Ranch Mendocino County | 26 | — | High | Fair |
| James J. Lenihan Santa Clara County | 208 | 1953 | High | Fair |
| Indian Valley Lake County | 225 | 1975 | High | Fair |
| Hudson Vineyards Napa County | 25 | 1983 | Significant | Fair |
| Hestan Vineyards Dam Napa County | 21 | — | High | Fair |
| Henderson Amador County | 56 | 1923 | High | Fair |
| Hell Hole Placer County | 410 | 1966 | High | Fair |
| Healdsburg Recreation Sonoma County | 15 | 1953 | Low | Fair |
| Hawkins San Benito County | 72 | 1928 | Significant | Fair |
| Haiwee Inyo County | 81 | 1913 | High | Fair |
| Glen Martin San Bernardino County | 55 | 1950 | High | Fair |
| Forest Meadows Calaveras County | 60 | 1975 | Low | Fair |
| Florence Lake Fresno County | 149 | 1926 | High | Fair |
| Feliz North Lake Mendocino County | 24 | — | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.