Route information | ||||
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Maintained by IDOT | ||||
Length | 170.44 mi[1] (274.30 km) | |||
Existed | November 5, 1918[2]–present | |||
Major junctions | ||||
South end | IL 13 / IL 127 in Vergennes | |||
North end | I-55 BL / IL 29 in Springfield | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | Jackson, Perry, Randolph, Washington, St. Clair, Madison, Macoupin, Sangamon | |||
Highway system | ||||
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Illinois Route 4 is a major north–south highway that runs south from the Interstate 55 business loop around the state capital of Springfield, south to Illinois Route 13 just north of Murphysboro. This is a distance of 170.44 miles (274.30 km).[1]