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 376–400 of 455
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Scott Lake Alpine County | 35 | 1926 | Low | Satisfactory |
| Sea Ranch Sonoma County | 61 | 1996 | Low | Satisfactory |
| Selvage #2 Santa Clara County | 42 | 1948 | Low | Poor |
| Shedd Modoc County | 22 | 1962 | Low | Satisfactory |
| Shenandoah Lake Amador County | 33 | 1962 | Low | Satisfactory |
| Shoreline Lake Santa Clara County | 18 | — | Low | Satisfactory |
| Shugru Lassen County | 20 | — | Low | Satisfactory |
| Sierra Vista Merced County | 12 | 1872 | Low | Satisfactory |
| Silt / Tails San Bernardino County | 10 | — | Low | Not Available |
| Silva Flat Lassen County | 11 | 1926 | Low | Satisfactory |
| Slate Creek Plumas County | 70 | 1961 | Low | Satisfactory |
| Smoke Creek Lassen County | 37 | 1949 | Low | Satisfactory |
| Snowflower Placer County | 28 | 1964 | Low | Satisfactory |
| Snowstorm Dam (Blm) Lassen County | 7 | 1950 | Low | Not Rated |
| Sonoma Hills Sonoma County | 38 | 1991 | Low | Satisfactory |
| South Fork Diversion Plumas County | 60 | 1961 | Low | Satisfactory |
| South Mountain Modoc County | 10 | 1980 | Low | Not Rated |
| Spaulding Lassen County | 28 | 1954 | Low | Satisfactory |
| Spaulding 3 Modoc County | 9 | 1965 | Low | Not Rated |
| Spooner Lassen County | 17 | 1906 | Low | Satisfactory |
| Stanislaus Forebay West Tuolumne County | 60 | 1908 | Low | Satisfactory |
| Steidlmayer #3 Sutter County | 49 | 1961 | Low | Satisfactory |
| Stinson Weir Fresno County | 14 | 1910 | Low | Satisfactory |
| Straza El Dorado County | 62 | 1971 | Low | Satisfactory |
| Sunflower Tehama County | 50 | 1976 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.