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 |
|---|---|---|---|---|
| Mendocino 3 Upper Mendocino County | 49 | 1915 | High | Satisfactory |
| Mendocino Middle Mendocino County | 39 | 1908 | High | Fair |
| Mendota Diversion Madera County | 23 | 1917 | Significant | Satisfactory |
| Merced Falls Merced County | 43 | 1901 | High | Fair |
| Merlo Sonoma County | 74 | 1982 | High | Satisfactory |
| Metcalf Napa County | 34 | 1974 | High | Satisfactory |
| Metzger Mariposa County | 30 | 1956 | Low | Satisfactory |
| Metz Road Detention Basin Riverside County | 12 | 1981 | High | Satisfactory |
| Michigan Bar No. 1 Sacramento County | 17 | 1989 | Significant | Satisfactory |
| Michigan Bar No. 2 Sacramento County | 36 | 1983 | Low | Satisfactory |
| Middle Cooperstown Tuolumne County | 24 | 1947 | Low | Satisfactory |
| Middlefield Reservoir Alameda County | 147 | 1958 | High | Satisfactory |
| Middle Fork Brush Creek Sonoma County | 37 | 1961 | High | Satisfactory |
| Middle Fork Interbay Placer County | 71 | 1966 | Low | Satisfactory |
| Middle Lake Madera County | 26 | 1953 | Low | Satisfactory |
| Middle Lindsey Nevada County | 9 | 1870 | Low | Satisfactory |
| Mill Creek Santa Cruz County | 76 | 1889 | High | Fair |
| Miller Lake Dam Yuba County | 26 | 1955 | Significant | Not Available |
| Milliken Napa County | 110 | 1924 | High | Satisfactory |
| Mill Pond Mendocino County | 33 | 1885 | Low | Fair |
| Mill Pond Marin County | 21 | 1956 | Significant | Not Available |
| Mills Sacramento County | 23 | 1952 | High | Satisfactory |
| Milpitas Monterey County | 22 | 1960 | Low | Poor |
| Milton Main Nevada County | 37 | 1927 | Low | Satisfactory |
| Mineral Hot Springs Lake San Bernardino County | 54 | 1967 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.