Name | BNSF Illinois Prairie Path Bridge Chicago, Burlington and Quincy Railroad Bridge #5.23 |
Built By | Chicago, Burlington & Quincy Railroad |
Currently Owned By | BNSF Railway |
Superstructure Contractor | American Bridge Company of New York |
Length | 44 Feet Total |
Width | 1 Track |
Height Above Ground | 20 Feet (Estimated) |
Superstructure Design | Through Plate Girder |
Substructure Design | Concrete |
Date Built | 1902 |
Traffic Count | 2 Trains/Day (Estimated) |
Current Status | In Use |
Chicago, Burlington & Quincy Railroad Bridge Number | 5.23 |
BNSF Railway Bridge Number | 5.23 |
Significance | Local Significance |
Documentation Date | 1/25/2022; 2/20/2022 |
Between 1849 and 1850, the Aurora Branch Railroad of the Chicago, Burlington & Quincy Railroad would construct a 12 mile line extending from Aurora, Illinois to West Chicago, Illinois. The railroad would be reorganized as the Chicago and Aurora Railroad Company in 1852, and again as the Chicago, Burlington & Quincy Railroad (CB&Q) in 1855. This route, with trackage rights over the Galena & Chicago Union Railroad between West Chicago and Chicago, originally served as the main connection between the CB&Q lines extending westwards from Aurora and Chicago. In 1872, the CB&Q would construct a new line between Aurora and Chicago, reducing the importance of this line. The
CB&Q would go on to acquire and
construct a large railroad network
throughout the Midwest.
Since the late 19th Century, the route has primarily served as a branch line, serving industries and connecting to other railroad companies. In 1970, the CB&Q was merged with the Northern Pacific
Railway and the Great Northern Railway to form Burlington Northern
Railroad (BN). In 1996, BN merged with Atchison, Topeka & Santa Fe
Railway
to form BNSF Railway. BNSF currently operates the line as part of the Chicago Subdivision.
Located along Illinois Route 25 south of Batavia, this unusual through plate girder bridge carries the former Chicago, Burlington & Quincy Railroad over the former Batavia Branch of the Chicago, Aurora & Elgin Railway. Built in 1902, the bridge consists of a 44-foot through plate girder span, set onto concrete abutments. The main span of the bridge utilizes a shallow design, consisting of two girders, with the floor positioned approximately halfway up the girders. The stringers of the span are set apart, positioned near the girders. A series of floorbeams holds the stringers and girders, and these are connected with eyebars and pinned connections. Unlike traditional open deck bridges, this structure utilizes a continuous timber deck,with the rails directly set onto the timber components. Because of these unusual features, the bridge functions mainly as a "half-through plate girder", a design sometimes used to maximize vertical clearance beneath the structure. American Bridge Company fabricated the superstructure, and it is unknown if the substructure was constructed by contract or by company forces. Girder spans were often used by railroads, due to their versatility, durability and ease of construction. Overall, the bridge appears to be in fair to good condition, with no significant deterioration noted. The author has ranked this bridge as being locally significant, due to the girder design.
Citations
Build date | Chicago, Burlington & Quincy Railroad Valuation Summary at the Newberry Library |
Builder | Missing American Bridge Company plaque |
Railroad History Citation | ICC Valuation Information, Compiled by Richard S. Steele |