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 901–925 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mt. Woodson San Diego County | 38 | 1958 | High | Fair |
| Muck Valley Afterbay Lassen County | 15 | 1990 | Low | Satisfactory |
| Mud Fresno County | 14 | 1919 | Low | Satisfactory |
| Mud Lake Modoc County | 10 | 1926 | Low | Satisfactory |
| Mulholland Los Angeles County | 195 | 1924 | High | Satisfactory |
| Municipal Solano County | 56 | 1939 | High | Satisfactory |
| Murphys Afterbay Calaveras County | 43 | 1953 | High | Satisfactory |
| Murphys Forebay South Calaveras County | 27 | 1953 | High | Satisfactory |
| Murphys Wastewater Calaveras County | 24 | 1980 | High | Satisfactory |
| Murray San Diego County | 110 | 1918 | High | Fair |
| Murray Sonoma County | 55 | 1970 | High | Satisfactory |
| Murry Santa Clara County | 54 | 1957 | Low | Satisfactory |
| Mustang Creek Merced County | 18 | 1975 | Significant | Satisfactory |
| Myers Lassen County | 27 | 1957 | Low | Satisfactory |
| Nacimiento San Luis Obispo County | 255 | 1956 | High | Poor |
| Napa Valley Lake Napa County | 40 | 1990 | Low | Satisfactory |
| Nash Shasta County | 41 | 1960 | High | Satisfactory |
| Naz Lake Napa County | 29 | 1955 | Significant | Satisfactory |
| Nelson Corral Dam (Blm) Lassen County | 12 | 1980 | Low | Not Rated |
| Nevada City Raw Water Reservoir Nevada County | 48 | 1980 | Low | Satisfactory |
| New Bass Lake El Dorado County | 26 | 1978 | High | Satisfactory |
| New Bullards Bar Yuba County | 645 | 1970 | High | Satisfactory |
| New Calaveras Alameda County | 210 | 2018 | High | Satisfactory |
| Newell Santa Cruz County | 182 | 1960 | High | Fair |
| New Hogan Dam Calaveras County | 210 | 1963 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.