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 751–775 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Long Lake Plumas County | 12 | 1938 | Significant | Satisfactory |
| Longley Inyo County | 27 | 1910 | Low | Satisfactory |
| Long Valley Mono County | 126 | 1941 | High | Satisfactory |
| Long Valley West No. 2 Napa County | 35 | 1982 | Low | Satisfactory |
| Lookout Modoc County | 11 | 1930 | Low | Satisfactory |
| Loon Lake Main El Dorado County | 108 | 1963 | Significant | Satisfactory |
| Lopez San Luis Obispo County | 166 | 1969 | High | Satisfactory |
| Lopez Dam Los Angeles County | 50 | 1954 | High | Not Available |
| Los Angeles Reservoir Los Angeles County | 130 | 1977 | High | Satisfactory |
| Los Banos Creek Detention Dam Merced County | 167 | 1965 | High | Not Available |
| Los Padres Monterey County | 148 | 1949 | High | Satisfactory |
| Lost Creek Butte County | 122 | 1924 | High | Fair |
| Lost Lake East Alpine County | 15 | 1925 | Low | Satisfactory |
| Lost Lake West Alpine County | 21 | 1925 | Low | Satisfactory |
| Los Vaqueros Contra Costa County | 231 | 1997 | High | Satisfactory |
| Los Verjels Yuba County | 56 | 1915 | Significant | Satisfactory |
| Lowe Sonoma County | 30 | 1959 | High | Satisfactory |
| Lower Abbott Dam Monterey County | 13 | 1938 | Significant | Not Rated |
| Lower Bear Amador County | 245 | 1952 | High | Satisfactory |
| Lower Biscar Dam (Blm) Lassen County | 21 | 1977 | Low | Not Rated |
| Lower Blackwelder Dam Yuba County | 15 | 1955 | Significant | Not Available |
| Lower Blue Lake Alpine County | 40 | 1885 | Low | Poor |
| Lower Bucks Lake Plumas County | 99 | 1928 | High | Fair |
| Lower Crystal Springs San Mateo County | 149 | 1888 | High | Satisfactory |
| Lower Feeley Nevada County | 19 | 1870 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.