Route information | ||||
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Maintained by IDOT | ||||
Length | 18.67 mi[1] (30.05 km) | |||
Existed | 1924 as Route 142A;[2] 1977 as Route 242[3]–present | |||
Major junctions | ||||
South end | IL 142 in McLeansboro | |||
I-64 in Mayberry | ||||
North end | IL 15 in Wayne City | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | Hamilton, Wayne | |||
Highway system | ||||
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Illinois Route 242 is a 18.67-mile (30.05 km) north–south state highway in southern Illinois that runs from Illinois Route 142 in McLeansboro north to Illinois Route 15 in Wayne City.[1] The route serves as a spur of Illinois Route 142, which runs north–south from Mount Vernon to Equality. Route 242 also connects two east–west trunk routes, Illinois Route 14 and Illinois 15. Route 242 passes through the counties of Hamilton and Wayne. The highway is maintained by the Illinois Department of Transportation.