Stern view of the tug Demolen at docked at Ecorse, Michigan with the crane barge Veler on August 11, 2007.

The U.S. Army Corps of Engineers tug Demolen was built in 1974 for the U.S. Navy as

USS Metacom YTB-829, 1974-2001
then
Metacom, 2001-2002

The tug is 109 feet long, has a width of 30 feet, 6 inches, and a draft of 16 feet, 3 inches.

It is homeported at Detroit, Michigan, with the Detroit District of the U.S. Army Corps of Engineers which is the government agency responsible for maintaining navigable waterways.