(south of Chicagoland- from Kankakee County south)
^Northbound trailblazer at Illinois 166 at New Burnside, February 2023.
US Route 45 stretches a greater distance within the state of Illinois than any other route, running from the Wisconsin border, near Kenosha, to the Kentucky border by Paducah. This page covers the majority of US Route 45's length in the state of Illinois, from Kankakee County south. If you want photos and information for the section of US Route 45 in Chicagoland, click here.
Picking up where we left off, crossing from Will County into Kankakee County, US Route 45 and US Route 52 run south together into the Kankakee area, encountering Illinois 102's eastern end in Bourbonnais...
Just west of downtown Kankakee, US Routes 45 and 52 both join Illinois 17 east for several blocks:
Then, US Routes 45 and 52 split from Illinois 17, still operating as a continuous partnership as they turn southerly again:
US Routes 45 and 52 cross the Kankakee River and zigzag through Kankakee, splitting into the northern start of Illinois 115:
US Routes 45 and 52 turn onto Schuyler Avenue, which carries the southern extent of Illinois 50:
US Routes 45 and 52 leave Kankakee going due south, and they are indeed still concurrent, meeting a kitty-corner fountain interchange with Interstate 57...
At a 4-way intersection east of Ashkum, US Route 45 turns to the west, while US Route 52 turns to the east and Illinois 49 gets its northern start, heading south:
US Route 45, finally on its own again, heads west to Ashkum, and turns southerly at the eastern end of Illinois 116: