Nearly three years after the first cut of steel for the first Great Lakes freighter in nearly 40 years, the 639-foot M/V Mark W. Barker embarked on her maiden voyage today from Fincantieri Bay Shipbuilding. “This is a monumental day for our company and the US flag fleet as our much-anticipated freighter departs on her first voyage in what will be a long life of service on the Great Lakes,” says Mark W. Barker, President of The Interlake Steamship Company and namesake of the vessel – the company’s first new build since 1981. “The construction of this vessel, which was made from …