^Looking east down the start of Illinois 122 at Illinois 29 south of Green Valley, March 2021.
Illinois Route 122 is a fairly short east-west route in Tazewell County and western McLean County, connecting several small towns. This is west of Bloomington and south of Peoria.
The western end of Illinois 122 is at Illinois 29 south of Green Valley:
After passing through Delavan, Illinois 122 joins Interstate 155 north for three miles: