Mark Hannah tug/barge combo

The tug Mark Hannah was expected last night with a barge filled with calcium chloride. The tug delivers calcium chloride to a variety of ports on the Great Lakes including 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. You may note in the picture above, taken in July, 2002 as the Mark Hannah was departing Duluth, that the tug fits into a notch built into the back of the barge.
*submitted to the Duluth News Tribune for publication on 07-11-2006
Kenneth Newhams :