Area Interstate map of Interstate 474 in central Illinois
uploader's work, based on:

File:I-474 (IL) map.svg, based on:
File:I-24 (IL) map.svg
signs File:I-39.svg, File:I-55.svg, File:I-74.svg, File:I-155.svg, File:I-474.svg with "Interstate" removed
Closeapple from works by 25or6to4 and SPUI