At Aurora, the line connected to other railroads, which branched in all directions.
At the same time, the Central Military Tract Railroad built a line from Mendota, to Galesburg. This additional line would lay the groundwork of a series of western lines into Iowa and Missouri.
Both railroads became part of the Chicago, Burlington & Quincy Railroad in 1855.
The CB&Q used Aurora as a hub, with other rail lines coming in and out.
This line cut across mostly rural land, going through small towns along the way.
The line was also important, and was double tracked very quickly. By 1868, the line was double tracked between Chicago and Mendota.
The remainder of the line was double tracked in sections, mostly in the 1880s.
The line was critical to the CB&Q. By 1970, the CB&Q was merged into Burlington Northern, along with the Great Northern and Northern Pacific.
BN continued to operate the line until 1996, when they merged with Atchison, Topeka & Santa Fe to form BNSF Railway.
BNSF currently operates this as their Mendota Subdivision. It sees a steady traffic base, and carries Amtrak.
07/17/21
Located in the town of Somonauk, this deck girder bridge crosses Somonauk Creek.
Built in 1900, the bridge consists of a single deck girder span, set onto stone abutments. These abutments have been repaired with concrete. In addition, the girder has a ballasted deck.
Small girder spans like these were common to cross smaller creeks. It is likely that this structure was built for a double tracking project.
Overall, the bridge appears to be in good condition.
The author has ranked the bridge as being locally significant, due to the common design.
The photo above is an overview.