Waddell "A" Truss Bridge, Spanning Lin Branch Creek, Trimble, Clinton County, MO

The address was changed to reflect that the bridge was moved from its original location (Spanning Linn Branch Creek, Trimble vicinity, Clinton County, Missouri) to Parkville, Missouri, in 1987. (March 2016)

Significance: The bridge was designed in accordance with John Alexander Low Waddell's patent of November 13, 1894 (#529,220). Waddell developed the "A" truss to meet the need for a reliable, easily erected, inexpensive, short-span railroad bridge. It is regarded as a transitional phase in bridge design. The bridge was converted to highway use in 1953. When it was documented by HAER in 1980, it was one of only two Waddell "A" truss bridges that had survived in the United States. It was moved and became a pedestrian bridge in 1987.

Unprocessed Field note material exists for this structure: FN-1

Survey number: HAER MO-8

Building/structure dates: 1898 Initial Construction

Building/structure dates: 1939

Building/structure dates: 1953 Subsequent Work

National Register of Historic Places NRIS Number: 90002173

steel truss bridges bridge construction civil engineering patents railroad companies iron industry steel industry vehicular bridges railroad bridges trimble waddell truss bridge truss bridge lin lin branch creek clinton county missouri pinned joints a and p roberts company richard k anderson historic american engineering record thomas m hocker donald c jackson pencoyd bridge company omaha quincy john alexander waddell platte county ultra high resolution high resolution industrial history library of congress national register of historic places

1969 - 1980

Library of Congress

http://www.loc.gov/

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