Thermalito Afterbay
California — Butte County — Feather River - Off Stream
Location
| State | California |
| County | Butte |
| River | Feather River - Off Stream |
| Coordinates | 39.47710, -121.68710 |
Physical Characteristics
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 42,000 ft |
| NID Storage | 57,041 acre-ft |
| Max Storage | — |
| Surface Area | 6,900 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | August 23, 2023 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1967 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | State |
| Owner | California Department of Water Resources |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.