Radio Iowa)- An Iowa towboat is headed upstream from Dubuque and it appears there will be an early start to the navigation season on the Upper Mississippi River. Al VanGuilder, with the U-S Army Corps of Engineers, says there are already some areas of open water at Lake Pepin along the Minnesota-Wisconsin border.

VanGuilder says there’s still “pretty decent ice” on the upper end of the lake, but it’s thin enough for towboats to bust through to reach St. Paul. The towboat from Dubuque will rendezvous with another and they hope to reach the Twin Cities on Saturday, which he says is the unofficial start of spring.

The shipping season opened on March 21st last year.