List of Interstate Highways in Illinois

Last updated

Interstate Highway System in Illinois
I-57.svg
I-294.svg
Business Loop 55.svg
Standard Illinois Interstate Highway markers
List of Interstate Highways in Illinois
Interstate Highway system in Illinois
System information
Maintained by IDOT, ISTHA, and SCC
Length2,248.93 mi [1]  (3,619.30 km)
FormedJune 29, 1956 (1956-06-29) [2]
Highway names
Interstates Interstate X (I-X)
US Highways U.S. Route X (US X)
State Illinois Route X (IL X)
System links

The Interstate Highways in Illinois are all segments of the Interstate Highway System that are owned and maintained by the U.S. state of Illinois. [3] The Illinois Department of Transportation (IDOT), Illinois State Toll Highway Authority (ISTHA), and Skyway Concession Company (SCC) are responsible for maintaining these highways in Illinois. The Interstate Highway System in Illinois consists of 13 primary highways and 11 auxiliary highways which cover 2,248.93 miles (3,619.30 km). [1] The Interstate Highway with the longest section in Illinois is Interstate 57 at 358.57 miles (577.06 km); the shortest is Interstate 41 at 0.90 miles (1.45 km).

Contents

Primary Interstate Highways

NumberLength (mi) [1] Length (km)Southern or western terminusNorthern or eastern terminusFormedRemovedNotes
I-24.svg I-24 38.7362.33 I-57 in Williamson County I-24 at Metropolis 01977-01-011977current
I-39.svg I-39 123.42198.63 I-55 in Normal I-39/I-90 in South Beloit 01989-01-011989current
I-41.svg I-41 0.961.54 I-94/US 41 in Russell I-41/I-94/US 41 near Russell02015-04-072015 [4] currentOverlaps I-94 from the US 41 split north to the state line
I-55.svg I-55 294.38473.76 I-55/I-64 in East St. Louis US 41 in Chicago 01960-01-011960current
I-57.svg I-57 364.16586.06 I-57 near Cairo I-94 in Chicago 01969-01-011969currentLongest Interstate in Illinois
I-64.svg I-64 128.12206.19 I-55/I-64 in East St. Louis I-64 in Grayville 01974-01-011974current
I-66.svg I-66 —— Missouri state line Kentucky state line01991-01-01199102015-01-012015Cancelled proposal that was part of the planned East–West TransAmerica Corridor
I-70.svg I-70 160.38258.11 I-70 in East St. Louis I-70 in Clark County ——
I-72.svg I-72 177.35285.42I-72/US 36 in Pike County I-57 in Champaign 01970-01-011970current
I-74.svg I-74 220.34354.60 I-74/US 6 in Moline I-74 in Danville —— Everett McKinley Dirksen Memorial Highway
I-80.svg I-80 163.52263.16 I-80 in Rock Island County I-80/I-94/US 6 in Lansing 01967-01-011967current
I-88.svg I-88 140.60226.27 I-80 in Silvis I-290 in Hillside 01987-01-011987currentOverlaps IL 110 through the entire route, Ronald Reagan Memorial Tollway
I-90.svg I-90 107.49172.99I-39/I-90 in South Beloit I-90 in Chicago ——
I-94.svg I-94 77.67125.00 I-41/I-94/US 41 near Russell I-80/I-94/US 6 in Lansing ——
  •       Former

Auxiliary Interstate Highways

NumberLength (mi) [1] Length (km)Southern or western terminusNorthern or eastern terminusFormedRemovedNotes
I-155.svg I-155 32.1351.71 I-55 near Lincoln I-74 in Morton 01992-01-011992current
I-172.svg I-172 19.6931.69 I-72/US 36 in Fall Creek US 24/IL 336 in Fowler 01995-01-011995currentOverlaps IL 110 through the entire route
I-180.svg I-180 13.1921.23 IL 26/IL 71 in Hennepin I-80 in Bureau County 01967-01-011967current
I-190.svg I-190 3.074.94 O'Hare International Airport I-90 in Chicago 01978-01-011978currentShortest auxiliary Interstate in Illinois, Kennedy Expressway
I-255.svg I-255 27.0543.53I-255/US 50 in Columbia I-270/IL 255 in Pontoon Beach 01967-01-011967current
I-270.svg I-270 14.9724.09I-270 in Madison County I-55/I-70 in Troy 01956-01-011956current
I-280.svg I-280 17.6028.32I-280 in Rock Island I-74/I-80 in Colona ——
I-290.svg I-290 29.8448.02 I-90/IL 53 in Schaumburg I-90/I-94 in Chicago 01955-01-011955currentDwight D. Eisenhower Expressway
No image.svgToll plate yellow.svgNo image.svg
I-294.svg I-294 Toll 		53.4285.97 I-80/I-94/US 6/IL 394 in South Holland I-94 in Northbrook 01957-01-011957currentLongest auxiliary Interstate in Illinois, Tri-State Tollway
I-355.svg I-355 32.5152.32 I-80 in New Lenox I-290 in Itasca 01989-01-011989currentVeterans Memorial Tollway
I-474.svg I-474 14.8823.95 I-74/IL 6 in Peoria I-74 in East Peoria ——Peoria Bypass
No image.svgToll plate yellow.svgNo image.svg
I-490.svg I-490 Toll 		—— I-294 in Franklin Park I-90 in Des Plaines proposed—To be opened by 2026
I-494.svg I-494 ——————Proposal for Lake Shore Drive
I-494.svg I-494 ——————Proposed and cancelled Crosstown Expressway
  •       Former

Business loops

NumberLength (mi)Length (km)Southern or western terminusNorthern or eastern terminusFormedRemovedNotes
Business Loop 55.svg I-55 BL 13.922.4 I-55/I-72/US 36 in Springfield I-55 in Williams Township ——Serves Springfield
Business Loop 55.svg I-55 BL ——I-55 in Fogarty I-55 in Lincoln ——Serves Lincoln
Business Loop 55.svg I-55 BL 9.615.4I-55/I-74/US 51 in Bloomington I-55 in Normal ——Serves Normal and Bloomington
Business Loop 72.svg I-72 BL 9.515.3 I-72/US 36/US 67 southwest of Jacksonville I-72 in Jacksonville——Serves Jacksonville

See also

References

  1. 1 2 3 4 Adderly, Kevin (January 15, 2014). "Table 3: Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico". Route Log and Finder List. Federal Highway Administration. Archived from the original on August 5, 2014. Retrieved April 7, 2015.
  2. ↑ McNichol, Dan (2006). The Roads that Built America. New York: Sterling. p. 106. ISBN   1-4027-3468-9.
  3. ↑ Staff. "Interstate Frequently Asked Questions". Federal Highway Administration. Archived from the original on February 16, 2021. Retrieved February 25, 2008.
  4. ↑ Srubas, Paul (April 9, 2015). "US 41 Named Officially to Interstate Highway System". Green Bay Press Gazette.
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