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 126–150 of 1,436
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Tioga Lake Main Mono County | 27 | 1928 | High | Satisfactory |
| Tinemaha Inyo County | 32 | 1928 | High | Poor |
| Tiger Creek Regulator Amador County | 115 | 1931 | Significant | Fair |
| Tiger Creek Forebay Amador County | 33 | — | Low | Satisfactory |
| Tiger Creek Afterbay Amador County | 120 | 1931 | High | Fair |
| Thurman Shasta County | 63 | 1966 | Low | Satisfactory |
| Three Lakes Plumas County | 33 | 1928 | Low | Satisfactory |
| Thompson Creek Los Angeles County | 66 | 1928 | High | Satisfactory |
| Thompson Los Angeles County | 114 | 1925 | Significant | Satisfactory |
| Thomas Briles Modoc County | 23 | 1910 | High | Satisfactory |
| Thermalito Forebay Butte County | 91 | 1967 | High | Satisfactory |
| Thermalito Diversion Butte County | 143 | 1967 | High | Satisfactory |
| Thermalito Afterbay Butte County | 39 | 1967 | High | Fair |
| The Hill Ranch Sonoma County | 49 | 1955 | High | Satisfactory |
| Terminus Dam Tulare County | 255 | 1962 | High | Not Available |
| Terminal Northeast Auxiliary Dam Solano County | 28 | 1959 | Low | Not Available |
| Terminal San Luis Obispo County | 53 | 1969 | High | Satisfactory |
| Tennessee Valley Dam Marin County | 30 | — | High | Not Available |
| Telephone Flat Modoc County | 7 | 1931 | Low | Not Rated |
| Tejon Storage 2 Kern County | 67 | 1956 | Low | Satisfactory |
| Tejon Storage 1 Kern County | 32 | 1946 | Low | Satisfactory |
| Taylor Creek No. 1 Modoc County | 34 | 1952 | Significant | Satisfactory |
| Tanner Calaveras County | 35 | 1959 | High | Satisfactory |
| Tamarac Lake Alpine County | 21 | 1905 | Low | Satisfactory |
| Tallac El Dorado County | 16 | 1970 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.