Route information | ||||
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Maintained by IDOT | ||||
Length | 35.50 mi[1] (57.13 km) | |||
Existed | 1926[2]–present | |||
Major junctions | ||||
South end | IL 3 in Cahokia | |||
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North end | IL 140 in Hamel | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | St. Clair, Madison | |||
Highway system | ||||
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Illinois Route 157 (IL 157) is a 35.50-mile-long (57.13 km) north–south state highway in the southwestern part of the U.S. state of Illinois. The southern terminus of the highway is at an intersection with IL 3 in Cahokia. The northern terminus of the highway is at an intersection with IL 140 in Hamel.