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Clinton Railroad Bridge

Clinton Railroad Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 11, 2013

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Key Facts

Facility Carried / Feature Intersected
Railroad (Union Pacific) Over Mississippi River (West Channel)
Location
Clinton and Fulton: Clinton County, Iowa and Whiteside County, Illinois: United States
Structure Type
Metal Rivet-Connected Through Truss, Movable: Swing (Rim Bearing Center Pier) and Approach Spans: Metal 9 Panel Rivet-Connected Lattice (Quadruple Warren) Through Truss, Fixed
Construction Date and Builder / Engineer
1909 By Builder/Contractor: Pennsylvania Steel Company of Steelton, Pennsylvania

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
460 Feet (140.21 Meters)
Structure Length
855 Feet (260.6 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s) and 2 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This bridge's future is at risk!

View Historical Article About Bridge

View An Application For Funding To Replace This Bridge

This bridge is, like most historic railroad swing bridges over the Mississippi River, at risk for demolition and replacement. This is most unfortunate because this is a highly significant bridge. Its swing span of 460 feet is a long span example of its type. The truss configuration is quite unusual on the swing span as well. Many swing bridges have a truss arrangement quite different from fixed bridge due to the changing forces a swing span encounters when carrying load and when swinging open. However, this bridge is particularly unusual. The ends of the swing span have a Warren style truss configuration, but near the center "tower" portion this design loses its pattern and has a design that is difficult to categorize, but is somewhat like a Baltimore truss. Moreover, the tower portion of the bridge has a very narrow appearance compared to other swing bridges with a similar shape. In short, the swing bridge is fairly unusual in its design. The approach spans are noteworthy also. There is a traditionally composed Parker truss immediately east of the swing span. East of that, there is a lattice truss. Lattice trusses are in general rare, but were preferred by the original owner of this bridge, the Chicago and NorthWestern Railroad. East of this bridge, there is a second fixed longer bridge composed of many lattice truss spans. This other bridge is not yet documented by HistoricBridges.org. Additionally, only a few overview photos are available for this swing bridge. A revisit for better photos is planned.

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Photo Galleries and Videos: Clinton Railroad Bridge

 
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