IL 3 Travel Info
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Illinois Route 3 is a major north–south arterial state highway in southwestern Illinois. It has its southern terminus at Cairo Junction (about 4 miles (6.4 km), or 7 km, north of Cairo) at the intersection of Interstate 57 and U.S. Route 51, and its northern terminus in Grafton at Illinois Route 100. This is a distance of 187.44 miles (301.66 km).
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