CN Main Street Pedestrian Bridge (Champaign)


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Name CN Main Street Pedestrian Bridge (Champaign)
Illinois Central Railroad Bridge #127.83
Built By Illinois Central Railroad
Currently Owned By Canadian National Railway
Superstructure Contractor Unknown
Substructure Contractor Bates & Rogers Construction Company of Chicago, Illinois
Length 57 Feet Total, 19 Foot Spans (West 2 Tracks)
38 Feet Total, 19 Foot Spans (East 3 Tracks)
Width 5 Tracks, 1 In Use
Height Above Ground 10 Feet (Estimated)
Superstructure Design Concrete Encased Through Plate Girder
Substructure Design Concrete and Steel Bent
Date Built 1924
Traffic Count 20 Trains/Day (Estimated)
Current Status In Use
Illinois Central Railroad Bridge Number 127.83
Canadian National Railway Bridge Number Canadian National Railway Bridge #127.83
Significance Local Significance
Documentation Date 11/13/2022

In 1851, the State of Illinois authorized the construction of a series of railroad lines, extending from Cairo, Illinois; located on the Ohio River, to the Mississippi River at East Dubuque, Illinois and to Chicago, Illinois.  The State awarded the Illinois Central Railroad with the land necessary to construct the new lines.  In 1852, construction in Chicago, and a short segment was completed to Kensington.  The following year, the line would be completed from Kensington to Kankakee, followed by Kankakee to Champaign in 1854.  Between 1855 and 1856, the line would be extended to Centralia, where it met the line to East Dubuque.  From here, the line would continue south,  extending to Cairo.  The line was an immediate success, and provided a critical transportation link for the State of Illinois.  In addition to connecting Chicago with southern Illinois, the line also connected through several moderate sized towns throughout Central Illinois. Soon after opening, the railroad needed to expand.  Prior to 1870, a second track had been constructed from Kensington to Chicago, and a third track was added in 1880.  Between 1881 and 1883, the double track would be extended to Kankakee, followed by the section to Gilman in 1890.  In 1893, the line was widened to eight tracks between Chicago and 67th Street, as well as to six tracks prior to 1908.  Between 1901 and 1902, the railroad double tracked the entire line between Gilman and Centralia.  Four tracks were constructed to Matteson in 1911, followed by to Monee in 1923.  Between 1920 and 1923, a third track was constructed to Otto.  To improve safety, the tracks would be elevated between Hyde Park in Chicago and Matteson between 1893 and 1923. 

By the 20th Century, the IC was a respected railroad, operating an extensive railroad network through the central United States.  This line continued to serve as the principal mainline for the IC.  Portions of the second main track were removed in the later part of the 20th Century.  In 1972, the IC merged with the Gulf, Mobile & Ohio Railroad (GM&O) to form the Illinois Central Gulf (ICG).  In 1988, the ICG was reorganized as the Illinois Central Railroad (IC).  In 1998, IC was purchased by the Canadian National Railway (CN), the current owner of the line.  Today, CN continues to operate the Chicago Subdivision between Chicago and Champaign, as well as the Champaign Subdivision between Champaign and Centralia.  The line continues to serve as an important mainline for the CN.  In addition, Metra offers a commuter service, the Electric District, between Chicago and Matteson.


View an article discussing the track elevation in Champaign

Located in Champaign, this small bridge carries the former Illinois Central over a former alignment of Main Street, now a pedestrian walkway. In the early 1920s, the Illinois Central decided to elevate their railroad through Champaign and make additional station improvements, with the City of Champaign sharing approximately 10% of the cost. A majority of the work was completed in 1924, when this bridge was constructed. The bridge consists a concrete encased through plate girder structure, with three 19-foot spans serving the western two tracks and two 19-foot spans serving the eastern two tracks. The bridge is set onto steel bents and concrete abutments. The Bates & Rogers Construction Company constructed the concrete portions of the subway, and it is unknown who fabricated the steelwork. This design of bridge was not commonly used by railroads, although it may have had a practical use at this location. By encasing bridges such as this in concrete, the steel girder is more resistant to deterioration. This is particularly valuable in urban areas and where coal smoke from steam locomotives could damage the structure. Since the initial construction, all but the westernmost track have been removed from the bridge, although the structure remains intact. Overall, the bridge appears to be in fair to good condition, with no significant deterioration noted. Some cracking was noted throughout the superstructure, typical of encased steel girder spans. The author has ranked the bridge as being locally significant, due to the common design.


Citations

Builder and build date Engineering News-Record; Volume 93, Issue 8
Railroad History Citation ICC Valuation Information, Compiled by Richard S. Steele

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