Polley Lane Bridge, Spanning Yellow River at Polly Lane, Gilman, Taylor County, WI

Significance: The Polley Lane Bridge is representative of Pratt overhead trusses built between 1895 and 1910. These bridges are a transitional group, between the wagon bridge of the mid-to-late nineteenth century and the automobile-carrying structure of the twentieth century. Thus, the Polley Lane Bridge has pin connections for the major joints, light and slender members in the truss web, and a wood deck. The structural material was steel, however, and the floor beams were rolled sections. The bridge's 110-foot span is in the average range for similar overhead Pratt trusses in Wisconsin.

Survey number: HAER WI-15

Building/structure dates: 1908 Initial Construction

Building/structure dates: 1987 Demolished

bridges gilman polley lane bridge polley lane bridge yellow yellow river taylor taylor county wisconsin pratt trusses steel truss bridges vehicular bridges transportation pinned joints wood decking turnbuckles riveted joints ayres and associates theodore engstrand mark r fay john gamper hennepin bridge company historic american engineering record lawrence henry johnson robert newbery amy ross state highway commission e l urquhart lysa wegman french wisconsin bridge and iron company photo ultra high resolution high resolution infrastructure library of congress

1969 - 1980

Library of Congress

http://www.loc.gov/

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