22
Oct
Great Lakes Towing is building two 78-foot prototypes. The tugs' propulsion systems will be in the 2,800- to 3,200-hp range. (Courtesy Jensen Maritime Consultants) Great Lakes Towing is a century-old company that is undergoing a rebirth. At its well-worn shipyard on the Cuyahoga River in Cleveland, it has built a new $4 million headquarters office building attached to the new…