U.S. Route 6 in Illinois

U.S. Route 6
Grand Army of the Republic Highway
Route information
Maintained by IDOT
Length:	179.88 mi (289.49 km)
Existed:	1932 – present
Major junctions
West end:	I-74 / US 6 in Moline
	I-74 / I-280 in Moline I-80 / IL 110 (CKC) in Colona I-180 in Princeton I-39 / US 51 in LaSalle I-55 in Channahon I-80 in Joliet I-355 in New Lenox I-57 in Markham I-294 in Harvey I-80 / I-94 / IL 83 in Lansing
East end:	I‑80 / I‑94 / US 6 at Lansing
Highway system
United States Numbered Highway System List Special Divided Replaced Illinois State Highway System Interstate U.S. State Tollways ← IL 5 IL 6 →

In the state of Illinois, U.S. Route 6 (US 6) is an east–west arterial surface road that runs from the city of Moline in the Quad Cities area to Lansing at the Indiana state line. This is a distance of approximately 179.88 miles (289.49 km).

In Illinois, U.S. Route 6 can be split into the following sections:

U.S. Route 6 crosses the I-74 Bridge from Bettendorf, Iowa south into Moline, concurrent with Interstate 74. It remains with Interstate 74 for 5 miles (8 km) until the intersection with Interstate 280 south of the Rock River. U.S. 6 then turns east at the Quad Cities International Airport. It intersects Interstate 80 as it leaves the Quad Cities area, and closely parallels I-80 for the rest of its length in Illinois.

From the Quad Cities, U.S. 6 travels east through the city of Geneseo. At Sheffield, U.S. 6 overlaps U.S. Route 34 through to Princeton. After an interchange with Interstate 180, U.S. 6 runs with Illinois Route 89 to Spring Valley. In the LaSalle-Peru area, U.S. 6 intersects with Illinois Route 251, U.S. Route 51 and Interstate 39.

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