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 476–500 of 821
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mcvicker Canyon Debris Basin Riverside County | 55 | — | High | Fair |
| Meadow Lane Sonoma County | 30 | 1979 | High | Satisfactory |
| Melrose Avenue San Diego County | 57 | 1998 | High | Satisfactory |
| Mem Tehama County | 41 | 1976 | High | Satisfactory |
| Mendiboure Lassen County | 30 | 1949 | High | Satisfactory |
| Mendocino 3 Upper Mendocino County | 49 | 1915 | High | Satisfactory |
| Mendocino Middle Mendocino County | 39 | 1908 | High | Fair |
| Merced Falls Merced County | 43 | 1901 | High | Fair |
| Merlo Sonoma County | 74 | 1982 | High | Satisfactory |
| Metcalf Napa County | 34 | 1974 | High | Satisfactory |
| Metz Road Detention Basin Riverside County | 12 | 1981 | High | Satisfactory |
| Middlefield Reservoir Alameda County | 147 | 1958 | High | Satisfactory |
| Middle Fork Brush Creek Sonoma County | 37 | 1961 | High | Satisfactory |
| Mill Creek Santa Cruz County | 76 | 1889 | High | Fair |
| Milliken Napa County | 110 | 1924 | High | Satisfactory |
| Mills Sacramento County | 23 | 1952 | High | Satisfactory |
| Mineral Hot Springs Lake San Bernardino County | 54 | 1967 | High | Satisfactory |
| Miner'S Ranch Butte County | 90 | 1962 | High | Satisfactory |
| Miramar San Diego County | 165 | 1960 | High | Satisfactory |
| Misselbeck Shasta County | 96 | 1920 | High | Poor |
| Moccasin Lower Tuolumne County | 60 | 1930 | High | Fair |
| Mockingbird Canyon Riverside County | 74 | 1914 | High | Satisfactory |
| Modesto Reservoir Stanislaus County | 36 | 1911 | High | Satisfactory |
| Mojave River Dam San Bernardino County | 200 | 1971 | High | Not Available |
| Monticello Dam Napa County | 304 | 1957 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.