Illinois Route 56
|Maintained by IDOT|
|Length:||32.52 mi (52.34 km)|
|Existed:||1924 – present|
|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|
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).
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.
||This section contains a table that is missing mileposts for one or more junctions. Please help by .|
|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|
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)|
|Glen Ellyn||IL 53|
|Downers Grove||I-355 (Veteran's Memorial Tollway)|
|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
- Carlson, Rick. Illinois State Highways Page: Routes 41 through 60. Last updated April 15, 2005. Retrieved March 31, 2006.
- Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.