CBQ Hennepin Canal Feeder Bridge (Rock Falls)


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Name CBQ Hennepin Canal Feeder Bridge (Rock Falls)
Chicago, Burlington and Quincy Railroad Bridge #46.28
Built By Chicago, Burlington & Quincy Railroad
Currently Owned By City of Rock Falls
Superstructure Contractor American Bridge Company (Lassig Branch of Chicago)
Length 97 Feet Total
Width 1 Track
Height Above Ground 20 Feet (Estimated)
Superstructure Design Through Plate Girder
Substructure Design Concrete
Date Built 1900
Traffic Count 0 Trains/Day (Bridge is Abandoned)
Current Status Abandoned
Chicago, Burlington & Quincy Railroad Bridge Number 46.28
Significance Local Significance
Documentation Date 4/13/2024

In 1870, the Chicago and Rock River Railroad Company (C&RR) began construction on a 47-mile railroad line, extending from an existing line at Shabonna, Illinois to Rock Falls, Illinois.  The line opened to traffic in early 1872.  The C&RR was operated under lease by the CB&Q, which was beginning to acquire and construct a large number of lines throughout northern Illinois.  A bridge across the Rock River to connect to another CB&Q line in Sterling would be completed in 1884.  This route served as a secondary connection between the Quad Cities and Chicago, and was later relegated to a branch line.  The C&RR was formally merged into the CB&Q in 1899.  A segment between Shabonna and Paw Paw would be abandoned in 1939.  In 1970, the CB&Q was merged with the Northern Pacific Railway and the Great Northern Railway to form Burlington Northern Railroad (BN).  The remainder of the line between Paw Paw and Sterling would be abandoned in 1985.  Today, there is little remaining trace of this line. 


Located on the southeast side of Rock Falls, this deck plate bridge carried a CB&Q branch line across the feeder canal for the Hennepin Canal. Between 1890 and 1907, the United States Government constructed the Illinois & Mississippi Canal, later renamed the Hennepin Canal, to connect the Illinois and Mississippi Rivers. The new canal and feeder canal would require eight railroad bridges and sixty-three roadway bridges. Between 1899 and 1900, significant portions of the feeder canal would be constructed in Whiteside County, and a bridge carrying the CB&Q would be required. The bridge would be completed in 1900, and would consist of a a 97-foot single track through plate girder span, set onto concrete abutments. The girder span was fabricated by the Lassig Bridge & Iron Works, which was a major fabricator of railroad bridges throughout the Midwest. The bridge utilizes a typical design for through girder spans over the Hennepin Canal, including tapered and rounded ends and a floor composed of parallel floorbeams. This style of bridge was commonly used by railroads throughout the United States, as it was durable and easy to construct. The bridge is now owned by the City of Rock Falls, and its future is unknown. Overall, the bridge appears to be in fair to good condition, with only minor deterioration noted. The author has ranked this bridge as being locally significant, due to the common design.


Citations

Builder and build date American Bridge Company plaque
Railroad History Citation ICC Valuation Information, Compiled by Richard S. Steele

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