 Illinois Route 22 , also known as Half Day Road for part of its length , is an east – west state highway in northeastern Illinois . It runs from U.S. Route 14 ( Northwest Highway ) in Fox River Grove to U.S. Route 41 ( Skokie Highway ) in Highland Park . It travels a distance of 19 @.@ 7 miles ( 31 @.@ 11 km ) and is maintained by the Illinois Department of Transportation . It is signed as a north – south road, but is actually a south – north road.
Illinois 22 was built in 1921 and originally ran from Lake Forest to Waukegan .