Illinois Route 47

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Illinois Route 47 marker

Illinois Route 47
Route information
Maintained by IDOT
Length: 169.76 mi[2] (273.20 km)
Existed: 1924[1] – present
Major junctions
South end: IL 10 in Seymour
  I-72 in Seymour
I-74 in Mahomet
I-55 in Dwight
I-80 in Morris
I-88 / IL 110 in Sugar Grove
I-90 in Huntley
North end: WIS 120 in Hebron
Counties: Champaign, Ford, Livingston, Grundy, Kendall, Kane, McHenry
Highway system
Illinois State Highway System
US 45 IL 48

Illinois Route 47 is a largely rural north–south state highway that runs from the Wisconsin state border at Highway 120 near Hebron, to Illinois Route 10, just south of Interstate 72 near Seymour. This is a distance of 169.76 miles (273.20 km).[2] Even though Route 47 is primarily rural, in several suburbs of Chicago, such as Woodstock, traffic can be congested. Even in heavily rural areas, traffic is heavy.

It crosses most Interstate highways in northern and central Illinois, but the largest towns that Illinois 47 serves are Huntley (at the Jane Addams Memorial Tollway), Yorkville (at U.S. Route 34), Woodstock (at U.S. Route 14), Lily Lake at (Illinois Route 64), Elburn (at Illinois Route 38), Sugar Grove (at U.S. Route 30), Morris (at Interstate 80), Dwight (at Interstate 55), Forrest (at U.S. Route 24), Gibson City (at Illinois Route 54), and Mahomet (at Interstate 74).

Route description[edit]

Illinois 47 overlaps Illinois Route 72 and U.S. Route 20 at Pingree Grove, a village approximately 60 miles (97 km) from Chicago; this concurrency is part of a so-called wrong-way concurrency, where one can be driving both west on Illinois 72 and east on U.S. 20 at the same time. Route 47 also shares concurrencies with Illinois Route 9 and Illinois 54 in Gibson City, U.S. Route 30 in Sugar Grove, U.S. Route 6 in Morris, Historic U.S. Route 66 in Dwight, and U.S. Route 150 in Mahomet.

In November of 2013, a full access interchange opened at I-90 and Illinois 47. This replaced the existing partial access interchange that existed previously.


The Prairie Parkway study is a preliminary study by the Illinois Department of Transportation for a limited-access freeway that will roughly parallel Illinois 47. According to the study's Final Environmental Impact Statement, Illinois Route 47 will interchange with Prairie Parkway approximately 1/2 mile south of Caton Farm Road near Yorkville.

The Illinois Department of Transportation is proposing to add lanes to several portions of Illinois Route 47. A project to reconstruct the road to 4 lanes from Kreutzer Road to Reed Road through Huntley was completed in October 2011.[3] The Prairie Parkway study included engineering for 4 lanes from I-80 in Morris to Caton Farm Road south of Yorkville. Engineering is underway for Caton Farm Road to Illinois Route 71 in Yorkville, from Kennedy Road in Yorkville to US 30 in Sugar Grove, and from Charles Road to US 14 in Woodstock. A project providing additional lanes through Yorkville is part of the Illinois Jobs Now capital improvement plan and is funded at $36.5 million for construction.[4]

In addition, a proposal has been made to reconstruct the I-88 interchange with Illinois Route 47 to full access. Currently, there is no eastbound access or westbound entrance at I-88.

The Illinois Department of Transportation revealed in their 2010-2011 budget that they would no longer support the idea of the Prairie Parkway, mainly due to budgetary constraints, coupled with large public opposition. Instead, IDOT supported the idea of widening IL 47, since it runs directly from Interstate 88 to Interstate 80. Currently, the IL 47/I-80 interchange in Morris is a full interchange, while the interchange for IL 47/I-88 is split with a westbound entrance ramp and eastbound exit ramp directly connecting the two highways, while the westbound exit and eastbound entrance are accessible from I-80 via IL 56 and Galena Boulevard in Sugar Grove.

Major junctions[edit]

County Location Junction Notes
McHenry WIS 120 Northern Terminus
Hebron IL 173 (Maple Avenue)
Woodstock IL 120 (McHenry Avenue)
US 14 (Northwest Highway)
IL 176 Very short concurrency (0.8 miles)
Kane Huntley I-90 (Jane Addams Memorial Tollway) Full Interchange: I-PASS Only
Pingree Grove US 20 (General Grant Highway) / IL 72 (Higgins Road) Forms a wrong-way concurrency with US 20 and IL 72 for 0.5 miles
Lily Lake IL 64
Elburn IL 38 (Lincoln Highway)
I-88 (Ronald Reagan Memorial Tollway) / IL 110 No eastbound entrance or westbound exit
Sugar Grove US 30 west / IL 56 east North end concurrency with US 30
US 30 (Baseline Road) South end of concurrency with US 30
Kendall Yorkville US 34 (Veteran's Parkway)
IL 126 east (Schoolhouse Road) Western terminus of IL 126
IL 71 (Stagecoach Trail)
US 52
Grundy Morris I-80 Full interchange
Morris US 6 (Bedford Road) Very short concurrency (0.7 miles)
Mazon IL 113 Western terminus of IL 113
Dwight I-55 Full Interchange

External links[edit]


  1. ^ Carlson, Rick. Illinois Highways Page: Routes 41 thru 60. Last updated March 15, 2006. Retrieved March 28, 2006.
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08. 
  3. ^ Village of Huntley IL 47 website [1] Retrieved 3-9-11
  4. ^ IDOT 2010-2015 Program [2] Retrieved 2-20-10