The Bruce L. Hahn was the first to go through at 10:00 p.m. pushing 13 barges upriver. The City of Cassville locked through at 11:00 p.m. pushing five barges. It marks the opening of the commnercial shipping season on the Mississippi River at Winona.
The ice ramained at 25 to 26 inches thick on Lake Pepin as of last week. The US Army Corps of Engineers will take another measurement Wednesday.