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 301–325 of 455
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| North Fork Diversion Alpine County | 53 | 1989 | Low | Satisfactory |
| Oakhurst Wastewater Treatment Madera County | 60 | 2005 | Low | Satisfactory |
| Oak Site Santa Cruz County | 43 | 1969 | Low | Satisfactory |
| Orange County Reservoir Orange County | 103 | 1941 | Low | Satisfactory |
| Orvis Stanislaus County | 34 | 1959 | Low | Satisfactory |
| Orwick Dam (Blm) Tehama County | 22 | 1950 | Low | Not Rated |
| Pacific Grove Monterey County | 32 | 1882 | Low | Satisfactory |
| Palen Sierra County | 25 | 1951 | Low | Satisfactory |
| Paradise Vineyards Sonoma County | 40 | 2003 | Low | Satisfactory |
| Payne Modoc County | 12 | 1928 | Low | Satisfactory |
| Peconom Lassen County | 15 | 1920 | Low | Satisfactory |
| Penn Valley Wastewater Nevada County | 39 | 1990 | Low | Satisfactory |
| Peoples Weir Kings County | 23 | 1936 | Low | Satisfactory |
| Percolation Area San Benito County | 12 | 1951 | Low | Satisfactory |
| Perry Gulch Mendocino County | 37 | 1980 | Low | Satisfactory |
| Peters Lake County | 32 | 1940 | Low | Satisfactory |
| Petes Valley Lassen County | 29 | 1954 | Low | Satisfactory |
| Piedmont Alameda County | 64 | 1905 | Low | Satisfactory |
| Pilgrim Creek Lake Dam San Diego County | 14 | 1973 | Low | Poor |
| Pine Grove Nevada County | 42 | 1911 | Low | Satisfactory |
| Pit No. 1 Diversion Shasta County | 18 | 1922 | Low | Satisfactory |
| Pit No. 5 Diversion Shasta County | 58 | 1944 | Low | Satisfactory |
| Pit River Weir Shasta County | 8 | 1921 | Low | Satisfactory |
| Plum Canyon Modoc County | 26 | 1913 | Low | Satisfactory |
| Poe Butte County | 80 | 1958 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.