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 51–75 of 160
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Packer Lake Sierra County | 11 | 1899 | Significant | Not Rated |
| Null Dam Shasta County | 54 | 1954 | Significant | Satisfactory |
| North Fork Dam Placer County | 155 | 1939 | Significant | Not Available |
| Niegel El Dorado County | 63 | 1951 | Significant | Satisfactory |
| New Woodbridge Diversion San Joaquin County | 31 | 2006 | Significant | Satisfactory |
| Naz Lake Napa County | 29 | 1955 | Significant | Satisfactory |
| Mustang Creek Merced County | 18 | 1975 | Significant | Satisfactory |
| Modesto Effluent Storage Stanislaus County | 20 | 1987 | Significant | Satisfactory |
| Mill Pond Marin County | 21 | 1956 | Significant | Not Available |
| Miller Lake Dam Yuba County | 26 | 1955 | Significant | Not Available |
| Michigan Bar No. 1 Sacramento County | 17 | 1989 | Significant | Satisfactory |
| Mendota Diversion Madera County | 23 | 1917 | Significant | Satisfactory |
| Mcnab Mendocino County | 40 | 1947 | Significant | Satisfactory |
| Mckays Point Diversion Tuolumne County | 242 | 1989 | Significant | Satisfactory |
| Mast Mendocino County | 85 | 1963 | Significant | Satisfactory |
| Mardis Barry Lassen County | 14 | 1941 | Significant | Satisfactory |
| Manzanita Lake Dam Shasta County | 13 | 1911 | Significant | Not Available |
| Lowrey No. 1 Sonoma County | 19 | 1954 | Significant | Satisfactory |
| Lower Howell Santa Clara County | 39 | 1877 | Significant | Satisfactory |
| Lower Blackwelder Dam Yuba County | 15 | 1955 | Significant | Not Available |
| Lower Abbott Dam Monterey County | 13 | 1938 | Significant | Not Rated |
| Los Verjels Yuba County | 56 | 1915 | Significant | Satisfactory |
| Loon Lake Main El Dorado County | 108 | 1963 | Significant | Satisfactory |
| Long Lake Plumas County | 12 | 1938 | Significant | Satisfactory |
| Little Juniper Modoc County | 22 | 1926 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.