Thermalito Afterbay
| Dam Name | Thermalito Afterbay |
| River | Offstream Feather River |
| Administration City | California |
| Country | United States |
| Year | 1967 |
| Dam Height | 12 |
| Dam Length | 12802 |
| Area(Sqkm) | 12.5 |
| Area(Polygonal) | 12.5 |
| Capital Expenditure | 70.3 |
| Depth(M) | 5.6 |
| Avg Displacement Of Water | 472 |
| Catchment Area In Sqkm | 69 |
| Main Usage | Water supply |
| Status | 2: Good |
| Longitude | -121.645417 |
| Latitude | 39.457917 |
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