Illinois Route 31

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Illinois Route 31 marker

Illinois Route 31
Route information
Maintained by IDOT
Length: 58.41 mi[2] (94.00 km)
Existed: 1937[1] – present
Major junctions
South end: US 34 in Oswego
  US 30 in Montgomery
I-88 / IL 56 / IL 110 in North Aurora
I-90 in Elgin
US 14 in Crystal Lake
North end: US 12 in Richmond
Location
Counties: Kendall, Kane, McHenry
Highway system
US 30 IL 32

Illinois Route 31 (IL 31) is a north–south state road in northeastern Illinois, United States. It runs from U.S. Highway 34 in Oswego north to U.S. Highway 12, near the Wisconsin border, just south of Richmond. Illinois 31 is 58.41 miles (94.00 km) long.[2]

Route description[edit]

Illinois 31 follows the Fox River along the western bank. It parallels Illinois Route 25, which travels along the eastern bank of the Fox River. It overlaps Illinois Route 120 in McHenry.

Illinois 31 is called Richmond Road north of Illinois 120 and Front Street south of Illinois 120 in McHenry, Main Street in Algonquin, Western Avenue in Carpentersville, Eighth Street in West Dundee, State Street in Elgin, La Fox Street in South Elgin, Second Street in St. Charles, First Street in Geneva, Batavia Avenue in Batavia, Lincolnway in North Aurora, Lake Street (Southbound) and River Street (Northbound) in Aurora. It is also, along with Illinois 25, signed as part of the Fox River Valley area. Illinois Route 31 between Aurora and Geneva was considered part of the Lincoln Highway transcontinental route.

History[edit]

SBI Route 31 ran from Quincy to Canton along various routes. This was dropped in 1935. In 1937, it was reapplied along other routes on its modern routing. There have been no changes to the routing since.[1]

U.S. Route 430[edit]

U.S. Highway 430

U.S. Route 430 was commissioned from 1926 to 1934 in the U.S. state of Illinois, and ran from Aurora to Crystal Lake. It ran with US 30 from Aurora to Geneva at present-day Illinois Route 38. US 430 was dropped in 1934 and replaced in its entirety with IL 31.

Future[edit]

There have long existed plans for a four-lane limited access bypass to be constructed west of downtown Algonquin. This would alleviate traffic at what is currently the most congested intersection in McHenry County, and divert through traffic. Widening the existing roadway isn't an option due to the close proximity of the buildings of downtown Algonquin to the road.

The bypass would start on the south at Route 31's intersection with Huntington Drive and would loop west of downtown Algonquin northward to the northern village limits. An interchange with Algonquin Road would also be constructed.

The bypass was even featured on the front cover of IDOT (Illinois Department of Transportation)'s Capital Improvements Plan during the Republican George Ryan years but was completely taken off the project list under Democrat Rod Blagojevich's administration. McHenry County is heavily Republican, and partisan politics may have been involved in the decision. The construction cost continues to go up as time goes by, and is now estimated at around $80 million. Even after U.S. Congressman Donald Manzullo secured millions in federal funding for the project, the State of Illinois has failed to match the funding, further delaying the project. A coalition of elected officials in McHenry County has recently made aggressive pushes to get the State to fund and build the Bypass, including a number of news conferences and a trip to the Illinois State Capitol in Springfield.

In 2013 ground was finally broken on the bypass, now formally known as the Western Algonquin Bypass. Construction will continue until its planned opening to traffic and use in 2015.

Major intersections[edit]

County Location Mile[3] km Destinations Notes
Kendall Oswego 0.0 0.0 US 34 (West Washington Street)
Kane Montgomery 2.8 4.5 US 30 (Lincoln Highway) – Joliet, Sugar Grove Interchange
North Aurora 8.6 13.8 I-88 / IL 56 west / IL 110 (Ronald Reagan Memorial Tollway) – DeKalb, Chicago Interchange, southern end of IL 56 concurrency
9.4 15.1 IL 56 (West State Street) Northern end of IL 56 concurrency
Geneva 15.4 24.8 IL 38 (State Street / Lincoln Highway)
St. Charles 17.4 28.0 IL 64 (Main Street)
Elgin 26.4 42.5 US 20 (Elgin Bypass) – Rockford, Chicago Interchange
29.7 47.8 I-90 (Jane Addams Memorial Tollway) – Chicago, Wisconsin Interchange
West Dundee 31.9 51.3 IL 72 (Main Street)
McHenry Algonquin 37.0 59.5 IL 62 east (Algonquin Road) Western terminus of IL 62
Crystal Lake 41.2 66.3 US 14 (Northwest Highway)
42.8 68.9 IL 176 (Terra Cotte Avenue)
McHenry 49.5 79.7 IL 120 west (Elm Street) Western end of IL 120 concurrency
49.9 80.3 IL 120 east (Elm Street) Eastern end of IL 120 concurrency
Richmond 57.9 93.2 US 12 / CR A16 west (Tryon Grove Road)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

External links[edit]

Route map: Google / Bing