Willow Run Expressway Bridge No. R01, Spanning Conrail Railway, eastbound, at US-10, Ypsilanti, Washtenaw County, MI
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at US-10, Ypsilanti vicinity, MI
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Documentation compiled after 1968.
Survey number HAER MI-97-A
Significance: This pair of bridges created a grade separation between the Willow Run Expressway and a railroad line serving the Willow Run Bomber plant (1942). The Willow Run Expressway, the first substantial limited-access highway in Michigan, along with its continuation, the Detroit Industrial Expressway, enabled vast numbers of workers living in Detroit to commute to the Willow Run plant. This is one of only two highway-railroad grade separations to survive from the original expressway system.
Historic American Engineering Record (Library of Congress)
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