SS City of Milwaukee

Moored on the waterfront at Manistee, the SS City of Milwaukee preserves a type of working ship that underpinned North American logistics long before containerization. Launched in 1931 for the Grand Trunk Milwaukee Car Ferry Company, this steel-hulled Great Lakes railroad car ferry moved loaded railcars across Lake Michigan in all seasons, part of a system that once fielded more than a dozen such vessels. Its survival as the only pre-1940s ship of its kind, and the last unmodified traditional railroad car ferry on the lakes, makes it a rare artifact of transport and industrial mobilization with clear implications for wartime supply and rail–maritime integration. The shallow draft, broad flat car deck with multiple rail lines, and twin triple-expansion steam engines driving cast-steel propellers illustrate engineering tailored to harsh freshwater conditions and heavy rolling stock. Designated a National Historic Landmark in 1990, the ship’s largely intact machinery, compartmented hull, and original interior fittings allow close study of interwar marine engineering and the infrastructure that sustained military and civilian freight flows across the upper Midwest.