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Washington Road Bridge

Knox County Bridge 45, Wheatland Bridge

Washington Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 26, 2019

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Key Facts

Facility Carried / Feature Intersected
Washington Road Over White River
Rural: Knox County, Indiana and Daviess County, Indiana: United States
Construction Date and Builder / Engineer
1903 By Builder/Contractor: Indiana Bridge Company of Muncie, Indiana

Technical Facts

Rehabilitation Date
Main Span Length
140 Feet (42.7 Meters)
Structure Length
570 Feet (173.7 Meters)
Roadway Width
15.4 Feet (4.69 Meters)
3 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

This pin connected truss bridge is noted for its relatively long three span configuration. The bridge has some unusual repairs, such as crudely welded plate on a bottom chord eyebar, and a vertical member replaced with a crudely designed replacement. These repairs appear to be older, and predate the most recent rehabilitation and repainting of the bridge.

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View National Register of Historic Places Nomination Form For This Bridge

Information and Findings From DHPA Historic Bridge Survey

Statement of Significance

The Indiana Bridge Company of Muncie, Indiana, fabricated this three-span, pin-connected Pratt through truss which is seated upon concrete abutments, wingwalls, and piers. Intermediate verticals of laced channels subdivide each 140' truss into most of its eight panels. Eyebars provide the diagonals: pairs of die-forged and rectangular ones 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 two most central panels. Riveted to plates above the lower chord, I floor-beams carry the timber deck with its 15'5" roadway and 16' of vertical clearance. Daviess County officials contracted with Indiana Bridge for these spans. Built by a prolific Hoosier firm, these trusses retain their original members, including their decoratively latticed guardrails. The heavier-duty floor beam and endpost vertical connections illustrate a move away from standard pin design. References United Construction and Engineering Corporation, Bridge Inspection Study and Report: Knox County (Indianapolis, 1972). Associated Engineering Consultants, Bridge Reinspection Study and Report: Knox County (Nashville, 1977, 1981). United Consulting Engineers & Architects, Bridge Inventory Report: Knox County (Indianapolis, 2002). bridge nameplate. Indiana Bridge Company, Contract Index, #4948 & #4948 1/2, Indiana Bridge Co. (Muncie).

Bridge Considered Historic By Survey: Yes


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