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Manitowoc Marine Group (MMG)


United States


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Last updated

7 years 10 weeks ago


Bay Shipbuilding was created in 1967, when Manitowoc Corporation closed its yard in Manitowoc and acquired two adjacent shipyards in Sturgeon Bay WI - Sturgeon Bay Shipbuilding and Christy Corp.  Sturgeon Bay Shipbuilding dates from the late 19th century, passing through several owners and corporate identities.  Christy Corp. was previously Leathem D. Smith Shipbuilding, which was started at the outbreak of World War One and became a major figure in the Great Lakes maritime industry: after Leathem Smith's death in 1948, the yard was sold to its management and renamed Christy Corp. 

The yard is now the last active builder of large ships on the U.S. Great Lakes, although it hasn't actually built a large ship, as opposed to a large barge, since the 1980s.  In 2008, Manitowoc Corp.  sold its Marine Group, which also includes Marinette Marine and Cleveland Ship Repair, to Fincantieri and it is now called Fincantieri Marine Group.  Visit the shipyard at and see it from the air on Google here.

Equipment built

Name Type Built Power Volume
Dredge No. 50 GD, 940 kW
Dredge No. 51 CLD 1962 1410 kW
Dredge No. 52 GD, 1965 1300 kW
Michigan CLD 1968
W.D. Burutu GD 1965 637 kW
W.D. Warri GD 1970 784 kW
Wisconsin GD 1965 637 kW


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