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 176–200 of 821
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Deer Canyon Debris Basin San Bernardino County | 78 | 1980 | High | Satisfactory |
| Deer Creek Contra Costa County | 29 | 1963 | High | Satisfactory |
| Deer Creek Diversion Nevada County | 92 | 1928 | High | Satisfactory |
| Deer Lake Napa County | 72 | 1958 | High | Satisfactory |
| Del Valle Alameda County | 222 | 1968 | High | Satisfactory |
| Demens Creek Debris Basin San Bernardino County | 35 | 1980 | High | Satisfactory |
| Devil Canyon Second Afterbay San Bernardino County | 88 | 1995 | High | Satisfactory |
| Devils Canyon Dike #1 San Bernardino County | 15 | 1934 | High | Satisfactory |
| Devils Gate Los Angeles County | 108 | 1920 | High | Satisfactory |
| Diamond Valley Lake Riverside County | 284 | 2000 | High | Satisfactory |
| Diederich Reservoir Los Angeles County | 60 | 1950 | High | Satisfactory |
| Diemer Ozone Contact Basin Orange County | 32 | 2011 | High | Satisfactory |
| Diemer Reservoir Orange County | 22 | 1963 | High | Satisfactory |
| Dixon San Diego County | 116 | 1970 | High | Satisfactory |
| Donnells Tuolumne County | 317 | 1958 | High | Satisfactory |
| Donovan Sonoma County | 40 | 1953 | High | Satisfactory |
| Don Pedro Main Tuolumne County | 585 | 1971 | High | Satisfactory |
| Dorris Dam Modoc County | 25 | 1930 | High | Fair |
| Dos Pueblos Santa Barbara County | 78 | 1946 | High | Satisfactory |
| Dove Canyon Orange County | 88 | 1989 | High | Poor |
| Drum Forebay Placer County | 65 | 1913 | High | Satisfactory |
| Dry Canyon Los Angeles County | 66 | 1912 | High | Satisfactory |
| Dry Creek Contra Costa County | 30 | 1963 | High | Satisfactory |
| Dunsmuir Reservoir Alameda County | 43 | 1968 | High | Satisfactory |
| Dutcher Creek Sonoma County | 43 | 1992 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.