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 1101–1125 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Donovan Sonoma County | 40 | 1953 | High | Satisfactory |
| Donner Lake Nevada County | 16 | 1927 | Significant | Satisfactory |
| Donner Euer Valley Nevada County | 21 | 1966 | Low | Satisfactory |
| Donnells Tuolumne County | 317 | 1958 | High | Satisfactory |
| Dolcini Marin County | 35 | 1949 | Low | Satisfactory |
| Dixon San Diego County | 116 | 1970 | High | Satisfactory |
| Dina Bob Lake Sonoma County | 33 | 1955 | Significant | Satisfactory |
| Diemer Reservoir Orange County | 22 | 1963 | High | Satisfactory |
| Diemer Ozone Contact Basin Orange County | 32 | 2011 | High | Satisfactory |
| Diemer No. 8 Orange County | 172 | 1968 | Significant | Satisfactory |
| Diederich Reservoir Los Angeles County | 60 | 1950 | High | Satisfactory |
| Dick Week Napa County | 70 | 1955 | Significant | Satisfactory |
| Diamond Valley Lake Forebay Riverside County | 22 | 1999 | Low | Satisfactory |
| Diamond Valley Lake Riverside County | 284 | 2000 | High | Satisfactory |
| Devils Gate Los Angeles County | 108 | 1920 | High | Satisfactory |
| Devils Canyon Dike #1 San Bernardino County | 15 | 1934 | High | Satisfactory |
| Devil Canyon Second Afterbay San Bernardino County | 88 | 1995 | High | Satisfactory |
| Detention Pond A Solano County | 15 | 1989 | Significant | Satisfactory |
| De Sabla Forebay Butte County | 52 | 1962 | Low | Satisfactory |
| Dennis No. 2 Sonoma County | 60 | 1997 | Low | Satisfactory |
| Demens Creek Debris Basin San Bernardino County | 35 | 1980 | High | Satisfactory |
| Del Valle Alameda County | 222 | 1968 | High | Satisfactory |
| Delta Pond Sonoma County | 27 | 1984 | Significant | Satisfactory |
| Deer Lake Napa County | 72 | 1958 | High | Satisfactory |
| Deer Creek Diversion Nevada County | 92 | 1928 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.