This bridge s a very long example of a pin-connected Pratt through truss, particularly one which is composed in a manner similar to the more common shorter spans of this design. On this basis the bridge is technologically significant, since it represents the practical limits of the truss configuration with pinned connections. The bridge was also built by a noteworthy in-state bridge builder.
The bridge was closed to traffic in 2005 and in 2010 had areas of severe section loss in some unusual areas, such as on the vertical members around the sway bracing connections. There are other areas of significant section loss such as on some bottom chord connections. Despite this deterioration, restoration success stories elsewhere suggest that this bridge could be restored, at least for pedestrian use, and perhaps for light vehicular use. Areas of section loss could be replicated and spliced into the original material, thus maintaining the original design and historic integrity of the bridge.
Despite this preservation potential, the bridge is slated for demolition and replacement, with design work having been begun in 2010.
Information and Findings From DHPA Historic Bridge Survey
Statement of Significance
This high tuss was constructed by a prolific Hoosier firm and retains its original members, including decoratively latticed portals.
The Lafayette Bridge Company of Lafayette, Indiana, fabricated this single-span, pin-connected Pratt through truss which is seated upon cut stone abutments and wingwalls. Intermediate verticals of laced channels subdivide this 181' high truss into most of its ten panels. Eyebars provide the diagonals: pairs stretch toward center span from the top panel point to the bottom of all except the endpost panels; cylindrical eyebars with turnbuckles counter the others in the four most central panels. U-bolted to the lower pins, I floor beams carry the timber deck with its 15'3" roadway and 15' of vertical clearance.
Bridge Considered Historic By Survey: Yes
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