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 601–625 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Jamison Lake Plumas County | 15 | 1902 | Low | Not Rated |
| Janes Flat Modoc County | 22 | 1918 | Significant | Not Rated |
| Jayne'S Lake Mendocino County | 70 | 1985 | Low | Satisfactory |
| J.C. Jacobsen Kern County | 56 | 1973 | High | Satisfactory |
| Jeff Davis Calaveras County | 114 | 1973 | High | Satisfactory |
| Jenks Lake - Dam San Bernardino County | 30 | 1875 | High | Not Rated |
| John Carl Warnecke Sonoma County | 32 | 1974 | Low | Satisfactory |
| John Orr Amador County | 20 | 1959 | Low | Satisfactory |
| Johnson Ranch Mendocino County | 26 | — | High | Fair |
| Johnston San Mateo County | 31 | 1919 | Low | Satisfactory |
| Jones Ranch Trinity County | 36 | 1980 | Significant | Satisfactory |
| J&T Cattle Company No. 1 Stanislaus County | 22 | 2013 | Low | Fair |
| J&T Cattle Company No. 2 Stanislaus County | 14 | 1980 | Low | Fair |
| Juncal Santa Barbara County | 160 | 1930 | High | Satisfactory |
| Junction El Dorado County | 168 | 1962 | Significant | Satisfactory |
| Junge No. 2 Shasta County | 34 | 1965 | Low | Satisfactory |
| Junge No. 3 Shasta County | 43 | 1966 | Low | Satisfactory |
| Jurupa Basin Riverside County | 22 | 1983 | High | Satisfactory |
| Jurupa Basin San Bernardino County | 29 | 2001 | High | Satisfactory |
| J. V. De Laveaga San Benito County | 28 | 1940 | Low | Satisfactory |
| J. W. Wisda Los Angeles County | 50 | 1958 | Low | Satisfactory |
| Kangaroo Lake Siskiyou County | 12 | 1876 | Low | Not Rated |
| Kelley and Greiner Modoc County | 11 | 1923 | Low | Satisfactory |
| Kelley Hot Spring Fish Modoc County | 30 | — | Significant | Poor |
| Kellogg Ballpark Sonoma County | 51 | 1962 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.