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 1–25 of 160
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Wrigley Reservoir Los Angeles County | 42 | 1930 | Significant | Satisfactory |
| Winchester Placer County | 39 | 1999 | Significant | Satisfactory |
| Williamson No. 1 El Dorado County | 42 | 1926 | Significant | Poor |
| Waste Pond San Diego County | 20 | — | Significant | Not Available |
| Wallace Calaveras County | 29 | — | Significant | Satisfactory |
| Vineyard Subdivision Sonoma County | 26 | 1962 | Significant | Satisfactory |
| Veeder Hills Dam Napa County | 42 | — | Significant | Fair |
| Vassar Lake Dam Yuba County | 25 | 1962 | Significant | Not Available |
| Van Vleck Sacramento County | 26 | 1950 | Significant | Satisfactory |
| Upper Salmon Sierra County | 13 | 1899 | Significant | Not Rated |
| Upper Pond San Mateo County | 30 | — | Significant | Not Available |
| Upper Howell Santa Clara County | 36 | 1878 | Significant | Satisfactory |
| Upper Franklin Dam Los Angeles County | 40 | 1915 | Significant | Not Available |
| Upper Blackwelder Dam Yuba County | 19 | 1955 | Significant | Not Available |
| Trout Lake Siskiyou County | 40 | 1960 | Significant | Satisfactory |
| Toreson Modoc County | 55 | 1898 | Significant | Satisfactory |
| Tiger Creek Regulator Amador County | 115 | 1931 | Significant | Fair |
| Thompson Los Angeles County | 114 | 1925 | Significant | Satisfactory |
| Taylor Creek No. 1 Modoc County | 34 | 1952 | Significant | Satisfactory |
| Svcsd Reclamation Pond 2 Sonoma County | 19 | 1990 | Significant | Satisfactory |
| Svcsd Reclamation Pond 1 Sonoma County | 17 | 1990 | Significant | Satisfactory |
| Steamboat Lake Siskiyou County | 22 | 1968 | Significant | Satisfactory |
| Spring Madera County | 41 | 1971 | Significant | Satisfactory |
| Snag Lake Sierra County | 8 | 1899 | Significant | Not Rated |
| Small Arms Range Lake Dam Yuba County | 12 | 1962 | Significant | Not Available |
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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.