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 601–625 of 821
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Rattlesnake Canyon Orange County | 79 | 1959 | High | Fair |
| Reba Alpine County | 70 | 1965 | High | Satisfactory |
| Rector Creek Napa County | 164 | 1946 | High | Satisfactory |
| Redbank Fresno County | 33 | 1962 | High | Satisfactory |
| Redbank Creek Detention Basin Fresno County | 17 | 1990 | High | Satisfactory |
| Redhawk Lake Calaveras County | 33 | 1882 | High | Satisfactory |
| Red Lake Alpine County | 35 | 1924 | High | Satisfactory |
| Red Mountain Reservoir San Diego County | 120 | 1985 | High | Satisfactory |
| Red Rock No. 1 Lassen County | 63 | 1893 | High | Satisfactory |
| Relief Tuolumne County | 140 | 1909 | High | Poor |
| Reservoir A Placer County | 93 | 1973 | High | Satisfactory |
| Reservoir No. 4 Los Angeles County | 38 | 1955 | High | Satisfactory |
| Reservoir No. 5 Los Angeles County | 36 | 1949 | High | Satisfactory |
| Rhinedollar Mono County | 18 | 1927 | High | Satisfactory |
| Richard L. Schafer Dam Tulare County | 145 | 1961 | High | Not Available |
| Righetti San Luis Obispo County | 83 | 1966 | High | Satisfactory |
| Rinconada Reservoir Santa Clara County | 40 | 1969 | High | Satisfactory |
| Riviera Reservoir Los Angeles County | 40 | 1962 | High | Satisfactory |
| Robert A Skinner Riverside County | 109 | 1973 | High | Satisfactory |
| Robert L. Matheson Napa County | 32 | 1954 | High | Satisfactory |
| Roberts Modoc County | 17 | 1905 | High | Satisfactory |
| Rock Creek Plumas County | 126 | 1950 | High | Satisfactory |
| Rock Creek Placer County | 36 | 1913 | High | Satisfactory |
| Rocky Oaks Dam Los Angeles County | 22 | — | High | Not Available |
| Rollins Nevada County | 228 | 1965 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.