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 51–63 of 63
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Scotia Log Pond Humboldt County | 24 | 1910 | High | Poor |
| Selvage #2 Santa Clara County | 42 | 1948 | Low | Poor |
| Silver Lake Amador County | 32 | 1876 | High | Poor |
| St. Helena Lower Napa County | 44 | 1878 | High | Poor |
| Sunnymead Ranch Riverside County | 41 | 1985 | High | Poor |
| Swanzy Lake Solano County | 86 | 1931 | High | Poor |
| Sycamore Reservoir Monterey County | 25 | 1961 | Low | Poor |
| Tabeaud Amador County | 136 | 1901 | High | Poor |
| Tinemaha Inyo County | 32 | 1928 | High | Poor |
| Treatment Ponds Shasta County | 16 | 1975 | High | Poor |
| Vermilion Valley Fresno County | 165 | 1954 | High | Poor |
| White Modoc County | 16 | 1918 | Low | Poor |
| Williamson No. 1 El Dorado County | 42 | 1926 | Significant | Poor |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.