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Grand Ledge Railroad Bridge

Grand Ledge Railroad Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: April 17, 2006

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Key Facts

Facility Carried / Feature Intersected
Railroad (CSX) Over Grand River
Location
Grand Ledge: Eaton County, Michigan: United States
Structure Type
Metal 6 Panel Rivet-Connected Pratt Deck Truss, Fixed and Approach Spans: Metal Deck Girder, Fixed
Construction Date and Builder / Engineer
1904 By Builder/Contractor: Pennsylvania Steel Company of Steelton, Pennsylvania

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
120 Feet (36.58 Meters)
Structure Length
466 Feet (142.04 Meters)
Roadway Width
10 Feet (3.05 Meters)
Spans
3 Main Span(s) and 2 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This is a rather large bridge for Michigan, and it includes three main deck truss spans, plus a deck plate girder approach at each end. The trusses are in the Pratt configuration, and featured riveted connections. One span of this bridge's predecessor dated to 1887 and was moved to Stronach in 1909. Therefore, the existing Grand Ledge Bridge likely dates to around 1905-1909.

This bridge is noted for its lack of v-lacing or lattice. All the members and bracing have no v-lacing and lattice. V-lacing is seen under the end post and top chord of the bridge and a couple parts of the bracing. This lack of "decorative" steel does not detract from the impressive appearance of this bridge. The steel bent supports on this bridge add to the beauty of the bridge. The unusual sandstone rock cliffs of this area add an additional visual element to the scene. The bridge itself sits on stone abutments which are built onto this stone. The pier at the north end of this bridge sits right on top of the stone.

Below is a historical photo showing the previous Grand Ledge Bridge. One of the spans in the below photo is what can be found in Stronach today.

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Photo Galleries and Videos: Grand Ledge Railroad Bridge

 
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