^Eastbound trailblazer seen by drivers leaving the Bolingbrook exit with Illinois 53 (exit 267), December 2021.
Interstate 55 begins in Chicago along Lake Shore Drive (US Route 41) and heads southwest along the former route of US Route 66, crossing the Mississippi River into St. Louis, Missouri. It passes along Joliet's western flank and connects to Normal, Bloomington, and Springfield before it reaches the St. Louis metroplex.
Interstate 55 spends 294 miles in the state of Illinois, so information and exit lists for Interstate 55 have been separated into three sub-pages:
Interstate 55 spends 294 miles in the state of Illinois, so information and exit lists for Interstate 55 have been separated into three sub-pages:
