Bolger Reservoir
| Reservoir Name | Bolger |
| Dam Name | Billy Boy |
| River | Couderay |
| Administration City | Wisconsin |
| Country | United States |
| Year | 1936 |
| Dam Height | 4 |
| Dam Length | 12 |
| Area(Sqkm) | 34.3 |
| Area(Polygonal) | 0.3 |
| Capital Expenditure | 66.1 |
| Depth(M) | 1.9 |
| Avg Displacement Of Water | 2062 |
| Catchment Area In Sqkm | 315 |
| Main Usage | Recreation |
| Status | 3: Fair |
| Longitude | -91.407917 |
| Latitude | 45.845417 |
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