Tow rail rehabilitation at Lock and Dam 6
Contractors remove old concrete on the upstream guidewall at Lock and Dam 6 in Trempealeau, Wis., Jan. 9, 2020, as part of the tow rail rehabilitation project. The system is a vital piece of equipment which assists tows locking through lock and dams when traveling upriver.

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Photo by: George Stringham |  VIRIN: 200109-A-GX971-013.JPG