There's a lot going on in this aerial view of Lock 6 at Trempealeau, Wisconsin. Most prominently, Marquette Transportation's Bruce L. Hahn is shoving northbound with 15 loads. Mabel C. Etheridge approaches the south end with nine, also going north. Finally, a crew from JF Brennan, using a crane and a variety of other equipment, is installing sheet piling above the unused auxiliary gate.
