The line became part of the Chicago, Milwaukee & Saint Paul by 1874, which was vastly expanding its empire across the midwest. It had already reached into Iowa and Minnesota, along with extensive networks in Wisconsin and Illinois.
The line was double tracked in the late 1880s and early 1890s, and was part of the Milwaukee to Saint Paul mainline.
The CMStP reorganized into the Chicago, Milwaukee Saint Paul & Pacific in 1912, as it began expanding its empire towards Seattle.
This line saw some of the most stable traffic of the Milwaukee Road, which generated trains day and night.
When the Milwaukee Road fell out of buisness in 1985, it became part of the Soo Line, who eventually dissolved its Wisconsin lines. Most of the Soo Line went to Canadian Pacific, including this line. Canadian Pacific later sold lines off to Wisconsin Central. This line was not included.
Canadian Pacific is the current operator of this line, which sees nearly 110 trains per day, and is the main route from Chicago to Saint Paul with the Amtrack. It is known as the C&M Subdivision.
07/17/21
Located in the Irving Park neighborhood of Chicago, this through girder bridge crosses North Milwaukee Avenue near N. Kilbourne Avenue.
Built in 1898, the bridge features four through girder spans, set onto concrete and steel substructures. It is apparent that the bridge has been raised and the piers rebuilt at some time.
As one of the earliest ordered track elevations in Chicago, this bridge and the others in the area feature steel structures. The concrete substructures on this bridge are unique, as stone was still commonly used at this time.
Overall, the bridge appears to be in good condition, with minimal significant deterioration. Unfortunately, the bridge will be replaced by a new structure between 2021 and 2023.
The author has ranked this bridge as being locally significant, due to the common design and large numbers of similar bridges in the area.
The photo above is an overview.