Wisconsin-Michigan Railroad Bridge, Spanning Menominee River, on County Trunk Highway "JJ", Wagner, Marinette County, WI

Significance: The Wisconsin & Michigan Railroad Bridge is an example of a pin-connected Pratt through truss, a standard design used during the late 19th century. The bridge is unusual, in that it consists of two unequal spans, one measuring 162 feet and the other 221 feet. The long span may be one of the longest Pratt through trusses in Wisconsin and Michigan. In addition, the bridge is one of only a few extant trusses built before 1900. The history of the railroad bridge documents the development and decline of the logging industry in northern Wisconsin and Michigan.

Survey number: HAER WI-60

Building/structure dates: 1991 Demolished

Building/structure dates: 1894 Initial Construction

wagner wisconsin michigan railroad bridge wisconsin michigan railroad bridge menominee menominee river trunk highway county trunk highway marinette marinette county wisconsin michigan pratt trusses through trusses pinned joints stone piers transportation vehicular bridges metal truss bridges roller bearings looped eyebars eyebars john bagley frederick s brown julie corona frank ericksen fs brown and company dietrich floeter historic american engineering record diane kromm menominee and northern railway wisconsin and michigan railway company photo ultra high resolution high resolution library of congress

1900

Library of Congress

http://www.loc.gov/

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