County Line Bridge (Columbus Junction, Iowa)

United States historic place


County Line Bridge
U.S. National Register of Historic Places


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Location	140th block of County Line Rd. over Long Creek
Nearest city	Columbus Junction, Iowa
Coordinates	41°16′01″N 91°29′07″W / 41.26694°N 91.48528°W / 41.26694; -91.48528
Area	less than one acre
Built	1893
Built by	Gillette-Herzog Manufacturing Company
Architectural style	Pony truss
NRHP reference No.	98000513
Added to NRHP	May 15, 1998

County Line Bridge is a historic structure located in a rural area west of Columbus Junction, Iowa, United States. The Louisa County Board of Supervisors approved the petition of Thomas Anwyl in April 1893 to build a bridge over Long Creek on the Louisa-Washington county line. They awarded a $1,174 contract to the Gillette-Herzog Manufacturing Company of Minneapolis to build two bridges. The second span was the Gipple's Quarry Bridge over Buffington Creek in Elm Grove Township. The bridge span is supported by cast iron columns that were manufactured by the Cast Iron Pile and Bridge Company of Keosauqua, Iowa. The steel components were rolled by Carnegie for Gillette-Herzog in Pittsburgh. The pony truss bridge is typical of those built in the same era in Iowa, however, like Gipple's Quarry Bridge it has an unusual lower chord configuration with end panels that slope downward from the bearing shoes to the center panels. It has subsequently been abandoned. The bridge was listed on the National Register of Historic Places in 1998.

References

^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
^ Clayton B. Fraser. "County Line Bridge". National Park Service. Retrieved 2015-11-26. with photo
Clayton B. Fraser. "Gipple's Quarry Bridge" (PDF). National Park Service. Retrieved 2015-11-26.

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v t e National Register of Historic Places in Louisa County, Iowa
Columbus Junction	Community Building County Line Bridge Gipple's Quarry Bridge
Morning Sun	Bethel Church
Oakville	Florence-Council On The Iowa Site
Toolesboro	Toolesboro Mound Group
Wapello	Commercial Hotel Louisa County Courthouse
See also: National Register of Historic Places listings in Louisa County, Iowa and List of National Historic Landmarks in Iowa

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