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 526–550 of 821
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hansen Dam Los Angeles County | 97 | 1940 | High | Not Available |
| Halsey Forebay No. 1 Placer County | 42 | 1913 | High | Satisfactory |
| Halsey Afterbay Placer County | 40 | 1913 | High | Satisfactory |
| Hall Mill Dam Riverside County | 40 | 1949 | High | Not Rated |
| Haiwee Inyo County | 81 | 1913 | High | Fair |
| Haines Canyon Debris Dam Los Angeles County | 70 | 1938 | High | Not Available |
| 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 |
| Greystone Reservoir Los Angeles County | 75 | 1970 | High | Satisfactory |
| Green Verdugo Los Angeles County | 118 | 1953 | High | Satisfactory |
| Green Valley Lake Solano County | 40 | 1956 | High | Satisfactory |
| Greenhorn Siskiyou County | 35 | 1960 | High | Satisfactory |
| Grass Valley San Bernardino County | 35 | 1964 | High | Satisfactory |
| Grant Lake Mono County | 87 | 1940 | High | Poor |
| Grant Company 2 Santa Clara County | 27 | 1927 | High | Satisfactory |
| Goodwin Calaveras County | 101 | 1912 | High | Satisfactory |
| Goodhart Canyon Detention Basin Riverside County | 15 | 1999 | High | Satisfactory |
| Goffinet Amador County | 38 | 1954 | High | Satisfactory |
| Glenoaks 968 Reservoir Los Angeles County | 62 | 1949 | High | Satisfactory |
| Glen Martin San Bernardino County | 55 | 1950 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.