Route information | ||||
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Maintained by IDOT | ||||
Length | 22.95 mi[1] (36.93 km) | |||
Existed | 1926[2]–present | |||
Major junctions | ||||
West end | South Meyer Avenue / C Road in Valmeyer | |||
East end | IL 13 in New Athens | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | Monroe, St. Clair | |||
Highway system | ||||
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Illinois Route 156 is an east–west state road in southwestern Illinois. It runs from South Meyer Avenue & C Road in Valmeyer to just west of New Athens. This is a distance of 22.95 miles (36.93 km).[1]