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 176–200 of 455
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hendricks Head Butte County | 15 | 1907 | Low | Satisfactory |
| Henry Jr. San Diego County | 33 | 1929 | Low | Satisfactory |
| Hicks Canyon Retention Basin Orange County | 60 | 1997 | Low | Satisfactory |
| Hillside Ranch Sonoma County | 60 | 1967 | Low | Satisfactory |
| Hines Brothers Modoc County | 14 | 1955 | Low | Satisfactory |
| Holbrook Lassen County | 24 | 1952 | Low | Satisfactory |
| Holman Calaveras County | 101 | 1976 | Low | Satisfactory |
| Honcut Creek Ranch No. 1 Yuba County | 19 | 1964 | Low | Satisfactory |
| Horse Lake Lassen County | 12 | 1912 | Low | Satisfactory |
| Householder Modoc County | 12 | 1970 | Low | Not Rated |
| Huffman Antelope Modoc County | 15 | 1922 | Low | Satisfactory |
| Hughes Monterey County | 50 | 1966 | Low | Poor |
| Ice Lakes Placer County | 12 | 1942 | Low | Satisfactory |
| Ingals Swamp Modoc County | 23 | 1918 | Low | Satisfactory |
| Ione Canal Amador County | 48 | 1962 | Low | Satisfactory |
| Isabel Lake No. 1 Santa Clara County | 23 | 1948 | Low | Satisfactory |
| Isabel Lake No. 2 Santa Clara County | 18 | — | Low | Satisfactory |
| Island Weir Kings County | 13 | 1926 | Low | Satisfactory |
| Iverson Lassen County | 45 | 1968 | Low | Satisfactory |
| Jack'S Swamp Dam No. 2 Modoc County | 12 | 1926 | Low | Satisfactory |
| Jacobs Creek El Dorado County | 53 | 1948 | Low | Satisfactory |
| Jamison Lake Plumas County | 15 | 1902 | Low | Not Rated |
| Jayne'S Lake Mendocino County | 70 | 1985 | Low | Satisfactory |
| John Carl Warnecke Sonoma County | 32 | 1974 | Low | Satisfactory |
| John Orr Amador County | 20 | 1959 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.