Erected in 1905, this unique bridge includes a span made from four truss lines of an older Whipple truss bridge. The Whipple truss is the most unique span on this bridge. It is composed of one pair of truss lines on either side of the railroad tracks. By taking two Whipple truss spans and turning them into a single doubled-up Whipple truss span, the railroad was able to increase the load capacity of the span to meet the increased needs of the time, without having to scrap the lighter weight Whipple truss. It is not known where the Whipple trusses came from, and the age and original builder of the Whipple truss is unknown, but it could date to the 1880s based on style. From west to east, this bridge is configured as follows: A long timber trestle approach, a 100 foot through plate girder span (built by the American Bridge Company, per plaque on outside of girder), a 215 foot through truss swing span (assumed to be built by the American Bridge Company), a 215 foot Whipple truss span composed of a pair of truss lines on each side (reassembled by the Missouri Valley Bridge & Iron Company), and lastly another timber trestle approach. The substructure of the bridge was built by Kohmann and McMurry of Kansas City, Missouri.
Above: Historical photos showing bridge construction, from 1906 Bridgemen's Magazine.
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