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 in Aurora
I-88 / IL 31 / IL 110 in Aurora
I-355 in Downers Grove
|East end:||US 12 / US 20 / US 45 in Bellwood|
|Counties:||Kane, DuPage, Cook|
Illinois Route 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 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. Traveling westbound; after crossing the Fox River, Illinois 56 travels south along Illinois Route 31 until it joins I-88. Illinois 56 runs with the I-88 tollway until it exits the tollway just west of Orchard Road and terminates in Sugar Grove. (That section is a Freeway).
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 Chicagoland suburban cities 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.
|Cook||Bellwood||US 12 / US 20 / US 45||Eastern Terminus|
|DuPage||Elmhurst||IL 38 (Roosevelt Road)||No access to IL 38 eastbound from eastbound 56,
or westbound 38 from westbound 56
|IL 83 (Kingery Highway)||Westbound - No direct access - use IL 38 westbound
Eastbound - Only IL 83 northbound is accessible
|Downers Grove||Highland Avenue|
|I-355 (Veteran's Memorial Tollway)|
|Glen Ellyn||IL 53|
|Warrenville||IL 59 (Joliet Street)|
|Kane||North Aurora||IL 25|
|IL 31 (Lincolnway Street)||East end of concurrency|
|I-88 / IL 110 east – Aurora, Chicago||West end of concurrency with IL 31.
East end of concurrency with I-88
|Sugar Grove||I-88 / IL 110 west – DeKalb, Quad Cities||West end of I-88 concurrency|
|IL 47||Western Terminus|
- 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.