Willow
| Dam Name | Willow |
| River | Tomahawk |
| Administration City | Wisconsin |
| Country | United States |
| Year | 1927 |
| Dam Height | 11 |
| Dam Length | 327 |
| Area(Sqkm) | 19.1 |
| Area(Polygonal) | 19.1 |
| Capital Expenditure | 82.8 |
| Depth(M) | 4.3 |
| Avg Displacement Of Water | 7438 |
| Catchment Area In Sqkm | 986 |
| Main Usage | Hydroelectricity |
| Status | 2: Good |
| Longitude | -89.849583 |
| Latitude | 45.707083 |
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