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Pieper Road Bridge

Knox County Bridge 55

Pieper Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 26, 2019

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Key Facts

Facility Carried / Feature Intersected
Pieper Road (CR-1050 East) Over Purdy Marsh
Location
Rural: Knox County, Indiana: United States
Construction Date and Builder / Engineer
1905 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
57 Feet (17 Meters)
Structure Length
59 Feet (18 Meters)
Roadway Width
15.4 Feet (4.69 Meters)
Spans
1 Main Span(s)
NBI Number
4200178

Historic Significance Rating (HSR)

Bridge Documentation

This is a rare example of a skewed pin-connected pony truss bridge.

Information and Findings From DHPA Historic Bridge Survey

Bridge History and Significance

Offset from one another, the trusses of this single-span Pratt pony rest upon concrete abutments and wingwalls. The pin-connected structure extends 59' in four panels. Its verticals are fabricated from two pairs of laced angles and its diagonals of a pair of die-forged eyebars. The diagonals are countered by adjustable, cylindrical rods. I floor-beams, which are bolted to pin plates, carry the concrete deck with its 15'6" roadway. Except for the skew, the design of this Pratt pony span is rather standard for a pinned structure. The original members of the bridge, including the latticed guardrails, still function. 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 Considered Historic By Survey: Yes

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