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 151–175 of 455
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Gastaldi El Dorado County | 36 | 1951 | Low | Satisfactory |
| George Fiock No. 1 Siskiyou County | 19 | 1954 | Low | Satisfactory |
| Gerig Lassen County | 10 | 1939 | Low | Satisfactory |
| Gerle Creek El Dorado County | 74 | 1962 | Low | Satisfactory |
| Graham Lake County | 39 | 1959 | Low | Satisfactory |
| Granlees Sacramento County | 17 | 1921 | Low | Satisfactory |
| Grass Lake Plumas County | 10 | 1893 | Low | Not Rated |
| Graven Modoc County | 15 | 1917 | Low | Satisfactory |
| Green Oaks #1 San Mateo County | 39 | 1936 | Low | Satisfactory |
| Green Springs Modoc County | 9 | 1975 | Low | Not Rated |
| Green Tank Modoc County | 8 | 1975 | Low | Not Rated |
| Green Valley Mariposa County | 33 | 1957 | Low | Satisfactory |
| Green Valley Lake San Bernardino County | 56 | 1925 | Low | Satisfactory |
| Grinding Rock Tuolumne County | 55 | 1979 | Low | Satisfactory |
| Halls Meadows Modoc County | 13 | 1941 | Low | Satisfactory |
| Hamilton Glenn County | 28 | 1967 | Low | Satisfactory |
| Hansen Recreational Lake Los Angeles County | 50 | 1999 | Low | Satisfactory |
| Hat Creek No. 2 Diversion Shasta County | 29 | 1943 | Low | Satisfactory |
| Headworks Reservoir East Los Angeles County | 32 | 2016 | Low | Satisfactory |
| Headworks Reservoir West Los Angeles County | 32 | 2022 | Low | Satisfactory |
| Healdsburg Recreation Sonoma County | 15 | 1953 | Low | Fair |
| Heath Reservoir Lassen County | 45 | 1965 | Low | Satisfactory |
| Heenan Lake Alpine County | 39 | 1929 | Low | Satisfactory |
| Hein Calaveras County | 16 | 1962 | Low | Satisfactory |
| Hendricks Mariposa County | 33 | 1958 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.