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 101–125 of 160
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Miller Lake Dam Yuba County | 26 | 1955 | Significant | Not Available |
| Mill Pond Marin County | 21 | 1956 | Significant | Not Available |
| Modesto Effluent Storage Stanislaus County | 20 | 1987 | Significant | Satisfactory |
| Mustang Creek Merced County | 18 | 1975 | Significant | Satisfactory |
| Naz Lake Napa County | 29 | 1955 | Significant | Satisfactory |
| New Woodbridge Diversion San Joaquin County | 31 | 2006 | Significant | Satisfactory |
| Niegel El Dorado County | 63 | 1951 | Significant | Satisfactory |
| North Fork Dam Placer County | 155 | 1939 | Significant | Not Available |
| Null Dam Shasta County | 54 | 1954 | Significant | Satisfactory |
| Packer Lake Sierra County | 11 | 1899 | Significant | Not Rated |
| Patterson Alameda County | 100 | 1962 | Significant | Fair |
| Peabody Santa Clara County | 63 | 1950 | Significant | Poor |
| Pinheiro Sonoma County | 26 | 1967 | Significant | Satisfactory |
| Pit No. 7 Afterbay Shasta County | 35 | 1965 | Significant | Satisfactory |
| Plymouth Effluent Amador County | 59 | 1989 | Significant | Satisfactory |
| Pond # 5 Process Water, Cells A Through D Monterey County | 30 | — | Significant | Not Available |
| Ray Soule Reservoir Siskiyou County | 28 | 1953 | Significant | Satisfactory |
| Redwood Landfill Leachate Impoundment Marin County | 10 | 1991 | Significant | Fair |
| Reservoir C Modoc County | 20 | 1911 | Significant | Not Rated |
| Rice #1 Mariposa County | 25 | 1950 | Significant | Not Rated |
| Richardson Sonoma County | 65 | 1954 | Significant | Satisfactory |
| Rio Bravo Canal Kern County | 16 | 1988 | Significant | Satisfactory |
| Ross No. 1 Shasta County | 30 | 1957 | Significant | Satisfactory |
| Ross No. 2 Shasta County | 29 | 1957 | Significant | Satisfactory |
| Round Valley Lassen County | 45 | 1892 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.