Monroe Street Bridge, Spanning River Raisin at Monroe Street, Monroe, Monroe County, MI

Significance: The Monroe Street Bridge is an early example of a reinforced concrete cantilever girder bridge, a design developed in the late 1910s as an alternative to standard concrete arch bridge designs. The bridge was a key component of a major upgrading of the US-25 (later M-125) highway linking Detroit to Toledo. The builder, the W.H. Knapp Co., built several concrete bridges in Monroe County in the 1920s.

Survey number: HAER MI-35

Building/structure dates: 1929 Initial Construction

Building/structure dates: after 1970 Subsequent Work

Building/structure dates: 1984 Subsequent Work

concrete girder bridges vehicular bridges pedestrian bridges monroe bridge monroe street bridge raisin river raisin monroe street monroe county michigan historic american engineering record wh knapp company photo ultra high resolution high resolution infrastructure detroit publishing company photograph collection library of congress

1969 - 1980

Library of Congress

http://www.loc.gov/

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