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 851–875 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Isabel Lake No. 1 Santa Clara County | 23 | 1948 | Low | Satisfactory |
| Isabella Dam Kern County | 185 | 1953 | High | Not Available |
| Irrigation Reservoir Kern County | 22 | 1980 | High | Satisfactory |
| Iron Canyon Shasta County | 214 | 1965 | High | Satisfactory |
| Ione Canal Amador County | 48 | 1962 | Low | Satisfactory |
| Ingals Swamp Modoc County | 23 | 1918 | Low | Satisfactory |
| Indian Valley Lake County | 225 | 1975 | High | Fair |
| Indian Ole Lassen County | 26 | 1924 | High | Satisfactory |
| Indian Creek Alpine County | 71 | 1967 | High | Satisfactory |
| Indian Creek El Dorado County | 36 | 1946 | High | Satisfactory |
| Independence Sierra County | 31 | 1939 | High | Satisfactory |
| Imperial Diversion Dam Imperial County | 85 | 1938 | High | Not Available |
| Ice Lakes Placer County | 12 | 1942 | Low | Satisfactory |
| Ice House Dike No. 1 El Dorado County | 57 | — | Significant | Satisfactory |
| Hunters Calaveras County | 59 | 1927 | High | Satisfactory |
| Hume Lake Fresno County | 54 | 1908 | High | Not Rated |
| Hughes Monterey County | 50 | 1966 | Low | Poor |
| Huffman Antelope Modoc County | 15 | 1922 | Low | Satisfactory |
| Hudson Vineyards Napa County | 25 | 1983 | Significant | Fair |
| Householder Modoc County | 12 | 1970 | Low | Not Rated |
| Horse Lake Lassen County | 12 | 1912 | Low | Satisfactory |
| Honcut Creek Ranch No. 1 Yuba County | 19 | 1964 | Low | Satisfactory |
| Homestake Tailings Lake County | 169 | 1990 | High | Satisfactory |
| Home Ranch Dam Marin County | 23 | 1954 | Significant | Not Available |
| Holman Calaveras County | 101 | 1976 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.