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 1401–1425 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| West Side Detention Dike 2 Riverside County | 37 | 1968 | Low | Not Available |
| West Valley Modoc County | 65 | 1936 | High | Satisfactory |
| Wet Meadows Alpine County | 28 | — | Low | Satisfactory |
| Weymouth Memorial Reservoir Los Angeles County | 18 | 1966 | High | Satisfactory |
| Whale Rock San Luis Obispo County | 193 | 1960 | High | Satisfactory |
| Whiskeytown Dam Shasta County | 282 | 1963 | High | Not Available |
| Whispering Oaks Mariposa County | 31 | 1968 | Low | Satisfactory |
| White Modoc County | 16 | 1918 | Low | Poor |
| White Pines Calaveras County | 35 | 1970 | Low | Satisfactory |
| White Rock Lake Nevada County | 14 | 1855 | Low | Satisfactory |
| Whittier Narrows Dam Los Angeles County | 56 | 1957 | High | Not Available |
| Whittier Reservoir No. 4 Los Angeles County | 55 | 1931 | Low | Satisfactory |
| Wide Canyon Riverside County | 84 | 1968 | High | Satisfactory |
| Wildhorse Modoc County | 12 | 1934 | Low | Not Rated |
| Williams Santa Clara County | 69 | 1895 | Low | Satisfactory |
| Williamson No. 1 El Dorado County | 42 | 1926 | Significant | Poor |
| Williams Valley Mendocino County | 47 | 1965 | Low | Satisfactory |
| Willow Hill Reservoir Sacramento County | 24 | — | High | Fair |
| Willow Lake #1 Napa County | 40 | 2004 | High | Satisfactory |
| Wilson Debris Basin Los Angeles County | 50 | 1961 | High | Satisfactory |
| Winchester Placer County | 39 | 1999 | Significant | Satisfactory |
| Winery Lake Napa County | 29 | 1953 | High | Satisfactory |
| Wise Forebay Placer County | 20 | 1913 | High | Satisfactory |
| Wishon Forebay Madera County | 15 | 1896 | Low | Satisfactory |
| Wishon Main Fresno County | 260 | 1958 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.