Illinois Route 56

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Illinois Route 56 marker

Illinois Route 56
Route information
Maintained by IDOT
Length: 32.52 mi[2] (52.34 km)
Existed: 1924[1] – present
Major junctions
West end: US 30 / IL 47 in Sugar Grove
I-88 / IL 110 (CKC) in Aurora

I-88 / IL 31 / IL 110 (CKC) in Aurora
I-355 in Downers Grove
East end: US 12 / US 20 / US 45 in Bellwood
Counties: Kane, DuPage, Cook
Highway system
I-55 I-57

Illinois Route 56 (IL 56) is an east–west state road in northern and northeastern Illinois. It runs from the interchange of Illinois Route 47 at U.S. Route 30 (US 30) in Sugar Grove east to US 12/US 20/US 45 (Mannheim Road) by Bellwood. This is a distance of 32.52 miles (52.34 km).[2]

Route description[edit]

Illinois 56 parallels Interstate 88 (Ronald Reagan Memorial Tollway) for its entire length and merges with it at Illinois Route 31, making it the only state road to be marked as a toll road—only Illinois Route 190 and Illinois Route 5 have ever had this distinction. Travelling eastbound, it begins at US 30 in Sugar Grove just west of Orchard Road and then runs with the I-88 tollway until intersecting Illinois Route 31. The route travels north with IL 31 briefly, then crosses over the Fox River. From there, the route heads in a northeasterly direction, paralleling I-88 to the north. The route ends at US 12/US 20/US 45.

Route 56 is called Butterfield Road for its entire length east of Illinois Route 25 until it meets its end as Washington Boulevard in Bellwood. It serves the Chicago suburbs of Aurora, Downers Grove, Elmhurst, Oak Brook, Wheaton, and other communities, as well as the College of DuPage, Oakbrook Center shopping mall, and farther out, the Fermilab in Batavia. Butterfield Road is a major arterial road within the Illinois Technology and Research Corridor.


SBI Route 56 was the current Illinois 56 from Oak Brook to Bellwood on Butterfield Road. In 1965 it was extended west to Sugar Grove over Illinois Route 55. In 1972, the eastern end was truncated to its current location. The western end of Illinois 56 is part of the old alignment of the old east–west Tollway.[1]

Major intersections[edit]

County Location mi km Destinations Notes
Kane Sugar Grove US 30 / IL 47 Western terminus

I-88 / IL 110 (CKC) west – DeKalb, Quad Cities
West end of I-88 overlap; No access from IL 56 eastbound to I-88 westbound
North Aurora
I-88 / IL 110 (CKC) east – Aurora, Chicago
East end of I-88 overlap; West end of IL 31 overlap
IL 31 (Lincolnway Street) East end of IL 31 overlap
IL 25 (River Road)
DuPage Warrenville IL 59
Glen Ellyn IL 53
Downers Grove I-355 (Veteran's Memorial Tollway)
Highland Avenue
Elmhurst IL 83 (Kingery Highway) Westbound access is via IL 38, No access to IL 83 from eastbound IL 56
IL 38 (Roosevelt Road) No access to IL 38 eastbound from eastbound IL 56, no access to westbound IL 38 from westbound IL 56
Cook Bellwood US 12 / US 20 / US 45 Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Carlson, Rick. Illinois State Highways Page: Routes 41 through 60. Last updated April 15, 2005. Retrieved March 31, 2006.
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08. 

External links[edit]