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 926–950 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Haiwee Inyo County | 81 | 1913 | High | Fair |
| Haines Canyon Debris Dam Los Angeles County | 70 | 1938 | High | Not Available |
| Hagmaier South Marin County | 25 | 1944 | Significant | Not Available |
| Hackamore Reservoir Modoc County | 10 | 1907 | Significant | Not Rated |
| Guzman Reservoir Kern County | 47 | — | High | Satisfactory |
| Guenoc Lake Lake County | 50 | 1928 | High | Satisfactory |
| Guadalupe Santa Clara County | 142 | 1935 | High | Poor |
| Groveland Wastewater Reclamation #2 Tuolumne County | 45 | 1981 | High | Satisfactory |
| Grizzly Valley Plumas County | 115 | 1966 | High | Satisfactory |
| Grizzly Forebay Plumas County | 98 | 1928 | High | Satisfactory |
| Grizzly Creek Plumas County | 39 | 1915 | High | Satisfactory |
| Grizzly Creek Butte County | 50 | 1964 | Significant | Satisfactory |
| Grinding Rock Tuolumne County | 55 | 1979 | Low | Satisfactory |
| Greystone Reservoir Los Angeles County | 75 | 1970 | High | Satisfactory |
| Greeott Sonoma County | 40 | 1951 | Significant | Satisfactory |
| Green Verdugo Los Angeles County | 118 | 1953 | High | Satisfactory |
| Green Valley Lake Solano County | 40 | 1956 | High | Satisfactory |
| Green Valley Lake San Bernardino County | 56 | 1925 | Low | Satisfactory |
| Green Valley Mariposa County | 33 | 1957 | Low | Satisfactory |
| Green Tank Modoc County | 8 | 1975 | Low | Not Rated |
| Green Springs Modoc County | 9 | 1975 | Low | Not Rated |
| Green Oaks #1 San Mateo County | 39 | 1936 | Low | Satisfactory |
| Greenhorn Siskiyou County | 35 | 1960 | High | Satisfactory |
| Graven Modoc County | 15 | 1917 | Low | Satisfactory |
| Grass Valley San Bernardino County | 35 | 1964 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.