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Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey
 21 b&w photos |  12 data pages |  2 photo caption pages |
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TITLE:
Gill Bridge, Spanning Lick Creek at County Road 181, Perry vicinity, Ralls County, MO
CALL NUMBER:
HAER MO,87-PER.V,1-
REPRODUCTION NUMBER:
[See Call Number]
MEDIUM:
Photo(s): 21 (4 x 5 in.)
Data Page(s): 11 plus cover page
Photo Caption Page(s): 2
DATE:
Documentation compiled after 1968.
CREATOR:
Historic American Engineering Record, creator
NOTE:
Survey number HAER MO-94
Significance: Between the early 1880s, when trusses superseded bowstrings, and the 1920s, when riveted connections replaced pinned, the pin-connected Pratt truss was the metal structure of choice for medium- and long-span wagon bridges in Missouri. Virtually all of the major regional fabricators manufactured Pratt trusses and marketed them extensively to Missouri's counties. As a result, thousands of Pratt trusses were built across the state, and many remain in place today. With a fabrication date of 1909 and a span length of 95 feet, the Gill Bridge is neither the oldest nor the longest of these. Nevertheless, it is important for its illustration of two prevailing bridge trends - the construction of rural roadway bridges by county governments and the design and manufacture of pinned Pratt trusses in the late 19th and early 20th centuries. The Gill Bridge is today distinguished among Missouri's pin-connected trusses as a well-documented and well-preserved example of what was once a mainstay structural type.
SUBJECTS:
MISSOURI--Ralls County--Perry vicinity
COLLECTION:
Historic American Engineering Record (Library of Congress)
REPOSITORY:
Library of Congress, Prints and Photograph Division, Washington, D.C. 20540 USA
DIGID:
http://hdl.loc.gov/loc.pnp/hhh.mo1810
CONTROL #:
MO1810
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