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Johnstown Bridge

Johnstown Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 26, 2019

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Key Facts

Facility Carried / Feature Intersected
Johnstown Road (CR-1300 West) Over Eel River
Location
Rural: Owen County, Indiana and Greene County, Indiana: United States
Construction Date and Builder / Engineer
1918 By Builder/Contractor: Vincennes Bridge Company of Vincennes, Indiana and Engineer/Design: Lou Drescher

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
198 Feet (60.4 Meters)
Structure Length
203 Feet (61.9 Meters)
Roadway Width
15 Feet (4.57 Meters)
Spans
1 Main Span(s)
NBI Number
6000142

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

Built by a prolific in-state builder, this bridge helps document the variety of designs the company built. The bridge is a very late example of a pin-connected truss.

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

Information and Findings From DHPA Historic Bridge Survey

Bridge History and Significance

The Vincennes Bridge Company of Vincennes, Indiana, erected this single-span, pin-connected Parker variant upon concrete abutments and wingwalls and under the watchful eye of Lou Drescher, County Engineer. Serving as the intermediate verticals, laced channels divide the 200' structure into ten panels comprising one central and two side sections of two panels each and a single-panel section ahead of the inclined endpost. Except for the cylindrical eyebars with turnbuckles which serve as counters from the top central pin, all diagonals are double die-forged eyebars fitted twoards midspan from the top to the bottom pin in each panel. Heavy I floor-beams are bolted to the pin-plates below the lower chord. They support the concrete deck which carries a 15'2" roadway and 18' of vertical clearance. As the five extant Parker trusses constructed by this prolific Indiana firm reveal, Vincennes Bridge varied its patterns. This bridge represents a variant which appears to have been used for some fairly long spans. Although lacking in decorative elements, the truss retains its original members. References Beam, Longest & Neff, Inc., Owen County Bridge Inventory Rating & Safety Inspection (Indianapolis, 1973). Associated Engineering Consultants, Inc., Bridge Reinspection Study & Report: Owen County (Nashville, 1978). bridge nameplate.

Bridge Considered Historic By Survey: Yes (Select)

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Photo Galleries and Videos: Johnstown Bridge

 
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Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Johnstown Bridge

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