7 ships expected to spend winter in Duluth-Superior port

Lift Bridge channel
The Coast Guard Cutter Alder passes under the Aerial Lift Bridge in Duluth Jan. 14, 2013. The Soo Locks are scheduled to close for the season on Friday, and the Duluth Seaway Port Authority says seven ships will spend the winter in the Twin Ports.
Derek Montgomery | For MPR News 2013