UP Rosehill Drive Bridge


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Name UP Rosehill Drive Bridge
Chicago & North Western Railway Bridge #1307 1/4
Built By Chicago & North Western Railway
Currently Owned By Union Pacific Railroad
Superstructure Contractor American Bridge Company of New York
Length 57 Feet Total
Width 3 Tracks, 2 In Use
Height Above Ground 12 Feet (Estimated)
Superstructure Design Through Plate Girder
Substructure Design Stone Masonry
Date Built 1907
Traffic Count 75 Trains/Day (Estimated)
Current Status In Use
Chicago & North Western Railway Bridge Number 1307 1/4
Union Pacific Railroad Bridge Number 7.40
Significance Local Significance
Documentation Date 2/26/2023

In the early 1850s, several railroad companies began constructing railroad lines radiating from Chicago.  In 1855, the Chicago & Milwaukee Railroad (C&M) constructed a 45-mile railroad line, extending north from an existing railroad line at Ashland Avenue and Armitage Avenue in Chicago to the Wisconsin State Line near Kenosha.  At the same time, the Milwaukee & Chicago Railroad (M&C) constructed an additional 40 miles north to Milwaukee.  The two railroads would be consolidated into a new railroad known as the Chicago & Milwaukee Railroad (C&M) soon after completion, and would come under control of the Chicago & North Western Railway (C&NW) in 1866.  The C&M was leased to the Chicago, Milwaukee and North Western Railway (CM&NW) in 1883.  The C&NW acquired control of the CM&NW soon after.   The C&NW had constructed and acquired a large network of railroad lines through the Midwest.  This line formed a portion of the principal north mainline of the C&NW, eventually extending to northern Wisconsin and the Upper Peninsula of Michigan.  Due to increasing traffic along this line, a second track would be constructed between 1890 and 1892.

In the late 19th Century, railroad traffic had become a significant safety hazard for the City of Chicago.  A solution was devised to elevate the railroad tracks throughout the city, placing the railroads upon embankments and constructing subways at each street.  In 1898, the C&NW completed track elevation and a third track from Ashland Avenue to Balmoral Avenue; followed by Balmoral Avenue into Evanston between 1907 and 1910.  The C&NW would become a prominent railroad in the Midwest, eventually building a system over 11,000 miles long.  Throughout the 20th Century, this line would continue to be an integral part of the C&NW system.  The second track would be removed north of Kenosha after 1959.  In 1995, the C&NW would be purchased by the Union Pacific Railroad.  Union Pacific continues to operate the route as the Kenosha Subdivision.  Metra operates a commuter service, the Union Pacific-North Line over the Chicago to Kenosha section.


Located in the Lincoln Square neighborhood of Chicago, this trough floor through plate girder bridge crosses Rosehill Drive at Ravenswood Avenue. Built in 1907 as part of a track elevation program, the bridge consists of a 57-foot through plate girder span, set onto stone abutments. The girder span utilizes a trough floor, which is constructed of parallel floorbeams and a sheet metal deck. The ends of the girders use a typical C&NW design, with a curved taper. The bridge was originally constructed for three tracks, and two tracks remain in use. The superstructure of the bridge was fabricated by American Bridge Company, and it is believed that the substructures were constructed by railroad forces. This design of bridge was commonly used for track elevation projects, as it provided a durable and cost effective design. In addition, ballast decks were preferred by railroads and municipalities, as they provided a safer design for roadway users and the maintenance was more cost effective than an open deck design. At one time, a station called "Rosehill" existed at this location, but the station was closed in 1958. The stairs to the station remain today. Overall, the bridge appears to be in fair condition, with some deterioration noted throughout the structure. The author has ranked the bridge as being locally significant, due to the common design.


Citations

Builder and build date Chicago & North Western Valuation Notes at the Chicago & North Western Historical Society Archives
Railroad History Citation ICC Valuation Information, Compiled by Richard S. Steele

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