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 826–850 of 1,093
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Reservoir No. 4 Los Angeles County | 38 | 1955 | High | Satisfactory |
| Reservoir No. 5 Los Angeles County | 36 | 1949 | High | Satisfactory |
| Reynolds Weir Fresno County | 13 | 1928 | Low | Satisfactory |
| Rhinedollar Mono County | 18 | 1927 | High | Satisfactory |
| Richardson Sonoma County | 40 | 1974 | Low | Satisfactory |
| Richardson Sonoma County | 65 | 1954 | Significant | Satisfactory |
| Rickey San Mateo County | 64 | 1951 | Low | Satisfactory |
| Ridgewood Mendocino County | 44 | 1929 | Low | Satisfactory |
| Righetti San Luis Obispo County | 83 | 1966 | High | Satisfactory |
| Rinconada Reservoir Santa Clara County | 40 | 1969 | High | Satisfactory |
| Rio Bravo Canal Kern County | 16 | 1988 | Significant | Satisfactory |
| Rio Bravo Diversion Kern County | 28 | 1989 | Low | Satisfactory |
| Riviera Reservoir Los Angeles County | 40 | 1962 | High | Satisfactory |
| Robbs Peak El Dorado County | 50 | 1963 | Low | 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 El Dorado County | 35 | 1932 | Low | Satisfactory |
| Rock Creek Plumas County | 126 | 1950 | High | Satisfactory |
| Rock Creek Placer County | 36 | 1913 | High | Satisfactory |
| Rodden Lake Stanislaus County | 40 | 1916 | Low | Satisfactory |
| Rollins Nevada County | 228 | 1965 | High | Satisfactory |
| Ross Calaveras County | 44 | 1892 | Low | Satisfactory |
| Rossmoor No. 1 Orange County | 36 | 1964 | High | Satisfactory |
| Rossmoor Retarding Basin Orange County | 14 | 2002 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.