IM Sangchris Lake Bridge (East)


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Name IM Sangchris Lake Bridge (East)
Built By Chicago & Illinois Midland Railway
Currently Owned By Illinois & Midland Railroad
Superstructure Contractor Wisconsin Bridge & Iron Company of North Milwaukee, Wisconsin
Substructure Contractor Johnson & Grommett Brothers of St. Louis, Missouri
Length 100 Feet Total, 40 Foot Main Span
Width 1 Track
Height Above Ground 5 Feet (Estimated)
Superstructure Design Deck Plate Girder and Timber Pile Trestle
Substructure Design Concrete and Timber Pile
Date Built 1906, Approaches Added c. 1970
Traffic Count 0 Vehicles/Day (Bridge is Closed)
Current Status Closed to Traffic
Significance Local Significance
Documentation Date 10/21/2023

In 1888, the people of Pawnee, Illinois financed the Pawnee Railroad (PR), which constructed a railroad line from their town to the Illinois Central Railroad (IC) mainline south of Springfield.  This junction point would become known as "Cimic".  In 1905, the Chicago Edison Company purchased the PR for the purpose of transporting coal from the coal fields in central Illinois to Chicago.  The new railroad would be organized as the Chicago & Illinois Midland Railway (C&IM).  The following year, the C&IM reconstructed the Pawnee to Auburn portion of the line, and built a 16 mile extension to Taylorvile.  Owned by Samuel Insull, the company would be reorganized as Commonwealth Edison in 1907.   In 1294, the company acquired the Springfield-Havana-Pekin segment of the former Chicago, St. Louis & Peoria Railway.  Coal transfer facilities were constructed on the Illinois River at Havana and Pekin, further increasing the importance of this line.  
The portion of the line between Cimic and Auburn was abandoned in 1957.  After the Clean Air Act was passed in the 1960s, the high sulfur content of coal from the area made the use of this coal impractical.  Mines along the route began to close, and the C&IM was offered for sale, but received no takers.  During the 1970s, Commonwealth Edison changed plans, and began constructing power plants in central Illinois along the C&IM, sending electricity to Chicago along high voltage lines.  By the 1980s, deregulation of the railroads allowed Commonwealth Edison to use competitive bidding to obtain coal, and the C&IM would be placed for sale.  The C&IM was sold to investors in 1987, and the railroad eventually became part of the Illinois & Midland Railroad (I&M); owned by Genesee & Wyoming, Inc.  Today, the I&M continues to operate the line between Cimic and the Kincaid Generating Station; while east of there the line is out of service but largely intact to Taylorville.


Located south of Illinois Route 104 in Tovey, this deck plate girder bridge crosses Clear Creek, and is the eastern bridge across Sangchris Lake. Built in 1906 during the construction of the line, the bridge consists of a 40-foot deck plate girder span, set onto concrete abutments. The girder was reportedly fabricated by the Wisconsin Bridge & Iron Works, while the abutments were constructed by Johnson & Grommett Brothers. This design of deck girder was a standard for the C&IM along their short line, utilizing design features typical for the era. Deck plate girder spans were popular with railroads, as they provided a durable and easy to construct design. In approximately 1970, the bridge was reconstructed in response to the construction of Sangchris Lake. Timber pile trestle approaches were added on either side, and the abutments converted to piers. Overall, the bridge appears to be in fair to poor condition, with significant spalling and cracking noted throughout the substructure. The author has ranked this bridge as being locally significant, due to the common design.


Citations

Builder and build date Engineering News; Volume 55, Issue 6
Railroad History Citation ICC Valuation Information, Compiled by Richard S. Steele

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