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CR-400 East Bridge

Noble County Bridge 136

CR-400 East Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: Spring 2007 and March 4, 2012

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Key Facts

Facility Carried / Feature Intersected
CR-400 East Over Railroad (CSX)
Rural: Noble County, Indiana: United States
Construction Date and Builder / Engineer
1906 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Main Span Length
45 Feet (13.7 Meters)
Structure Length
107 Feet (32.6 Meters)
Roadway Width
16 Feet (4.88 Meters)
3 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

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

These unique bridges that cross this railroad in Noble County should be a rail-fan's delight, as these bridges cross an extremely busy railroad line.

The bridge is a three span warren pony truss with riveted connections, composed of one main span and a shorter approach span at each end. The approach structures sit at a slight incline, something not commonly seen with other small metal truss bridges. The bridge is seated on concrete abutments, and the main span is supported by steel truss supports. V-lacing is present on the diagonals and on the bottom chord. The bridge is posted for a 6 ton weight limit. Original gas pipe railings remain on the bridge. These railings include couplings that have the name "Dart" on them which refers to E. M. Dart Manufacturing Company. An advertisement from the company is shown to the right.

This bridge seemed to have a steeper and higher elevation than some of the other similar bridges in the county, and county officials would likely site the horribly low visibility as a reason for demolishing this structure. However, a better option would be making the dirt approaches longer and less steep, and/or lowering speed limits for increased safety across the bridge. Under no circumstances should the demolition of such an interesting and beautiful structure be considered.

The bridge is listed as having a 10 degree skew. As a light amount of skew on a pony structure, this is not particularly noticeable.

Information and Findings From DHPA Historic Bridge Survey

Statement of Significance

A number of features distinguish this bridge: the use of some pin connections, the absence of verticals, and the design of the endposts and top chords. The undecorated spans retain their original members.

Architectural Description

Concrete abutments and crafted I beam piers support the three-span Warren pony truss. The structure extends 106'8" in two triple and one quadruple panel span. The top chords and endposts are made from a pair of heavy angles riveted together with a cover plate and its diagonals from a pair of laced angles. Verticals are omitted. The I floor beams are U-bolted to gusset pins below the lower chord and carry the timber deck with its 16'9" roadway.

Bridge Considered Historic By Survey: Yes


Photo Galleries and Videos: CR-400 East Bridge

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Bridge Photo-Documentation
A collection of overview and detail photos. This photo gallery contains a combination of Original Size photos and Mobile Optimized photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
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Southbound Crossing
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.


Maps and Links: CR-400 East Bridge

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