Two dams and locks ahead before reaching Lake Pepin ,an Ingram towboat pushes six barges past Dick’s Marina inlet on Winona’s Latsch Island. The lake’s navigation channel still had a formidable14 inches of blue ice and four inches of white ice at places in official borings three days earlier. The shipper’s optimistic calculation was that a 70-degree day on Saturday would soften the ice pack quickly — quick enough for steel-hulled barges to plow through. Image: Steve Lunde