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 1126–1150 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Deer Creek Contra Costa County | 29 | 1963 | High | Satisfactory |
| Deer Creek Napa County | 40 | 1980 | Low | Satisfactory |
| Deer Canyon Debris Basin San Bernardino County | 78 | 1980 | High | Satisfactory |
| Decoto Reservoir Alameda County | 33 | 1966 | High | Satisfactory |
| Declez Retention Riverside County | 30 | 1984 | High | Satisfactory |
| Debell Santa Clara County | 53 | 1952 | High | Satisfactory |
| Dead Horse Reservoir Modoc County | 7 | 1931 | Low | Not Rated |
| Deadhorse Flat Reservoir Modoc County | 7 | 1920 | Low | Not Rated |
| Day Creek Debris Basin San Bernardino County | 90 | 1988 | High | Satisfactory |
| Dawson Lake Stanislaus County | 22 | 1896 | Low | Satisfactory |
| Davis No. 2 San Joaquin County | 26 | 1955 | High | Satisfactory |
| Davis Creek Orchard Modoc County | 17 | 1975 | Low | Satisfactory |
| Davis Creek Yolo County | 105 | 1985 | High | Satisfactory |
| Davis Napa County | 42 | 1955 | Significant | Satisfactory |
| Danville Contra Costa County | 75 | 1961 | High | Satisfactory |
| Danhauser Modoc County | 17 | 1890 | Low | Satisfactory |
| Dam Lake Norconian South Riverside County | 15 | 1928 | High | Fair |
| D'Agostini El Dorado County | 32 | 1950 | Low | Satisfactory |
| Cuyamaca San Diego County | 40 | 1887 | High | Satisfactory |
| Cummings Res No 2 Modoc County | 7 | 1910 | Low | Not Rated |
| Cummings Reservoir No. 1 Modoc County | 11 | 1912 | Significant | Satisfactory |
| Cull Creek Alameda County | 55 | 1963 | High | Satisfactory |
| Culbertson Lake Nevada County | 20 | 1852 | Low | Satisfactory |
| Cucamonga Creek Debris Basin San Bernardino County | 60 | 1980 | High | Satisfactory |
| Csp Mule Creek Amador County | 51 | 1988 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.