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 776–800 of 1,093
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pit No. 5 Diversion Shasta County | 58 | 1944 | Low | Satisfactory |
| Pit No. 6 Diversion Shasta County | 195 | 1965 | High | Satisfactory |
| Pit No. 7 Afterbay Shasta County | 35 | 1965 | Significant | Satisfactory |
| Pit No. 7 Diversion Shasta County | 228 | 1965 | High | Satisfactory |
| Pit River Weir Shasta County | 8 | 1921 | Low | Satisfactory |
| Pleasant Valley Inyo County | 87 | 1957 | High | Satisfactory |
| Plum Canyon Modoc County | 26 | 1913 | Low | Satisfactory |
| Plymouth Effluent Amador County | 59 | 1989 | Significant | Satisfactory |
| Poe Butte County | 80 | 1958 | Low | Satisfactory |
| Poison Springs Modoc County | 43 | 1957 | Low | Satisfactory |
| Pomponio Ranch San Mateo County | 64 | 1952 | High | Satisfactory |
| Pond 2b Solano County | 55 | 1975 | Low | Satisfactory |
| Ponderosa Butte County | 160 | 1962 | Low | Satisfactory |
| Pond K Amador County | 22 | 2006 | Low | Satisfactory |
| Pond No. 2 Sonoma County | 12 | 1952 | Low | Satisfactory |
| Poore Lake Reservoir Mono County | 23 | 1900 | Low | Satisfactory |
| Portal Forebay Main Fresno County | 65 | 1956 | Low | Satisfactory |
| Portola Orange County | 53 | 1980 | High | Satisfactory |
| Potrero Los Angeles County | 40 | 1967 | High | Satisfactory |
| Poway San Diego County | 162 | 1971 | High | Satisfactory |
| Prenda Riverside County | 44 | 1954 | High | Satisfactory |
| Preston Amador County | 40 | 1949 | High | Satisfactory |
| Preston Forebay Amador County | 40 | 1892 | Low | Satisfactory |
| Priest Tuolumne County | 168 | 1923 | High | Satisfactory |
| Puddingstone Los Angeles County | 147 | 1928 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.