Mark Hannah transports saltwater

The tug Mark Hannah delivers calcium chloride to a variety of ports on the Great Lakes, including Duluth today and its home port at Lemont, Illinois, 24 miles up the Chicago River from Lake Michigan. The tug can’t fit under the river’s bridges, so when the cargo goes to Lemont, the tug and barge are disconnected and a barge with a retractable pilot house is attached to the barge for the trip up the river.
*submitted to the Duluth News Tribune for publication on 07-09-2005
Kenneth Newhams :