^Illinois 106 splitting away from Illinois 96 at Kinderhook to continue east, June 2023.
Illinois Route 106 is an east-west route in west-central Illinois, that basically runs parallel to Interstate 72 along that highway's south side. It connects the county seats of Pike and Scott Counties, then the east end dives slightly south into Greene County. Every intermediate highway Illinois 106 encounters between its two endpoints forms a short concurrency with it.
The western beginning of Illinois 106 is an exit off of Interstate 72 just across the Mississippi River from Hannibal, Missouri...
At Hull, Illinois 96 comes from the north and joins Illinois 106 east:
Illinois 106 splits from Illinois 96 to continue east at Kinderhook:
West of Pittsfield, Illinois 106 joins US Route 54 eastward...