Custer Road Bridge, Spanning Black River Drain, Carsonville, Sanilac County, MI
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Spanning Black River Drain, Carsonville vicinity, MI
Find maps of Carsonville, MI
Documentation compiled after 1968.
Survey number HAER MI-96
Significance: With a main span of 27.52m (90.3 feet), this is among the longest known surviving Warren pony truss bridges in Michigan, since only fifteen percent of the total exceed eighty feet.
Steel Truss Bridges
Pony Truss Bridges
Historic American Engineering Record (Library of Congress)
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