Interstate 88 (Illinois)

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Interstate 88 marker

Interstate 88
Ronald Reagan Memorial Tollway
East–West Tollway
Route information
Maintained by IDOT and ISTHA
Length: 140.60 mi[2] (226.27 km)
Existed: July 1987[1] – present
Major junctions
West end:
I-80 / IL 5 / IL 92 / IL 110 (CKC) in East Moline
East end:
I-290 / I-294 / IL 110 (CKC) in Hillside
Highway system
IL 84 IL 89

Interstate 88 (I-88) is a tolled Interstate Highway in the US state of Illinois that runs from an interchange with I-80 near Silvis and Moline to an interchange with I-290 and I-294 in Hillside, near Chicago. I-88 is 140.60 miles (226.27 km) long. This route is not contiguous to I-88 in New York. Since 2010, all of I-88 has been part of the Chicago–Kansas City Expressway. The highway also runs through the cities of Aurora, Naperville, DeKalb, and Dixon.


Prior to its designation as an Interstate Highway, the route was known as IL 5, and before that, IL 190.

The reason for I-88's original designation and continued existence as an Interstate has to do with a technicality in the old National Maximum Speed Law (NMSL). Originally passed in 1973, NMSL was amended in 1987 to permit 65 mph (105 km/h) speed limits on rural stretches of Interstate Highways only. Even though IL 5 was fully up to Interstate standards, it still had to carry a 55 mph (90 km/h) limit because of this wording in NMSL. The Illinois Department of Transportation (IDOT) and Illinois State Toll Highway Authority (ISTHA) petitioned the American Association of State Highway and Transportation Officials (AASHTO) to re-designate IL 5 as an Interstate, and in 1987, AASHTO approved the request and assigned the Interstate 88 numbering to the highway.[1] NMSL would be completely repealed only eight years later in 1995, but the I-88 shields remain up to this day, even though Illinois 110 shields are being posted throughout the entire Illinois I-88, since it is now part of the Chicago to Kansas City Expressway project, bannered with special "CKC" logos.

Ronald Reagan Memorial Tollway in Naperville, heading east

Ronald Reagan Memorial Tollway[edit]

The Ronald Reagan Memorial Tollway, originally known as the East-West Tollway, is a toll road in northern Illinois.

Opened November 21, 1958, it was initially designated as U.S. Route 30 Toll, and later Illinois Route 190. The original routing extended from the Interstate 294 interchange near Hillside to Illinois Route 47 near Sugar Grove. Illinois Route 56 was overlapped on the East-West Tollway between North Aurora and Sugar Grove in 1965.

Map of the Ronald Reagan Memorial Tollway, the tolled portion of Interstate 88

When the East-West Tollway was extended to Dixon, Illinois in the 1970s, the Illinois 190 numbering was removed from the stretch between Aurora and Sugar Grove, making that section strictly Illinois 56. Once complete, the new routing of the combined tollway and freeway between Interstate 80 near the Quad Cities and Interstate 294 became designated as Illinois Route 5. In the late 1980s, it was renumbered as Interstate 88.

Officially, the tollway portion begins in Rock Falls, IL, starting at the intersection with U.S. Route 30 at mile marker 44, although the first toll plaza does not appear until after the Illinois Route 26 interchange in Dixon, making the section between US 30 and Illinois 26 technically a freeway. It continues as a tollway until its terminus in Hillside. West of U.S. 30 to Interstate 80, Interstate 88 is a freeway. The tollway portion is 96 miles (154 km) long.

After the death of Illinois native and former President Ronald Reagan in 2004, the Illinois State Toll Highway Authority voted to rename the toll roadway "Ronald Reagan Memorial Tollway" in his memory, as it passes near his birthplace of Tampico and grazes the south outskirts of his boyhood hometown of Dixon. The tollway portion of I-88 was previously known as the "East West Tollway" and is still displayed as such on some signs near Chicago.

There is no direct off-ramp access to U.S. Route 52, Illinois Route 23, Illinois Route 25, and Illinois Route 83 (northbound). In addition, I-88 merges with Illinois Route 56 for a short distance.

Although a federal law, 23 U.S.C. § 111, prohibits the operation of commercial rest areas constructed after January 1, 1960, on interstate highways, the DeKalb oasis was constructed at milepost 93 in 1975, prior to the route's designation as I-88 and remains in operation.

From 2005 lasting through 2012, ISTHA reconstructed and widened much of the original portion of I-88, between York Road and IL 56. Approximately $991.6 million was budgeted for I-88 over that period.[3] Between 2005 and 2009, I-88 was reconstructed and widened to four lanes in each direction between IL 59 and York Road, with work progressing gradually from west to east. The project included a reconstruction and reconfiguration of the Naperville Road interchange.[4] Between IL 56 and the Aurora Toll Plaza, I-88 was reconstructed and widened to three lanes, including the reconstruction of the IL 31 interchange and new bridges over the Fox River.[5][6]

A $36 million interchange at Eola Road in Aurora opened on November 20, 2009, after approximately ten years of planning and less than one year of actual construction.[7] Toll booths at this ramp accept only I-PASS, and have no provisions for accepting cash payments.[8][9]

Exit list[edit]

County Location mi km Exit Destinations Notes
Rock Island East Moline IL 5 / IL 92 west – Moline, Rock Island Continuation past I-80; west end of IL 92 overlap and western terminus
I-80 / IL 110 (CKC) south to I-74 – Des Moines, Peoria
Signed as exits 1A (east) and 1B (west); west end of IL 110 overlap; I-80 exits 4A-B
2 Old IL 2
Joslin 6 IL 92 east – Joslin East end of IL 92 overlap
Hillsdale 10 Hillsdale, Port Byron
Whiteside Erie 18 Erie, Albany To IL 84
Lyndon 26 IL 78 – Morrison, Prophetstown Former IL 2
Rock Falls 36 US 30 west – Clinton, Rock Falls, Sterling
41 IL 40 – Rock Falls, Sterling
44 US 30 – Joliet, Rock Falls
Lee Western end of Ronald Reagan Memorial Tollway
Dixon 54 IL 26 – Dixon
Dixon Toll Plaza
Ogle Rochelle 76 IL 251 – Rochelle, Mendota
78 I-39 / US 51 – Rockford, Bloomington, Normal I-39 exits 97A-B; signed as exits 78A (south) & 78B (north).
DeKalb DeKalb DeKalb Toll Plaza
91 146 91 To IL 38 / IL 23 / Lincoln Highway / Annie Glidden Road – DeKalb Toll on eastbound exit and westbound entrance ramps
DeKalb Oasis
94 To IL 38 / Lincoln Highway / Peace Road Toll on westbound exit and eastbound entrance ramps
Kane Sugar Grove 109 IL 47 Eastbound exit and westbound entrance
Aurora 113 IL 56 west to US 30 / IL 47 – Sugar Grove West end of IL 56 overlap; westbound exit and eastbound entrance
AuroraNorth Aurora
city line
114 Orchard Road Toll on eastbound exit and westbound entrance ramps, was exit 115
North Aurora 117 IL 31 / IL 56 east East end of IL 56 overlap; toll on eastbound exit and westbound entrance ramps
Aurora Aurora Toll Plaza
119 Farnsworth Avenue Toll on westbound exit and eastbound entrance ramps; signed as exits 119A and 119B
DuPage 121 To Eola Road I-PASS only on westbound exit and eastbound entrance ramps
Naperville 123 IL 59
Warrenville 125 Winfield Road Toll on eastbound exit and westbound entrance ramps
Naperville 127 204 127 To Naperville Road Toll on eastbound exit and westbound entrance ramps
Lisle 130 IL 53 (Lincoln Avenue) Westbound exit and eastbound entrance
Downers Grove 131 I-355 (Veterans Memorial Tollway) – Joliet, Northwest Suburbs Signed as exits 131A (south) and 131B (north) westbound; signed as exit 131 (south) and exit 132 (north) eastbound
134 Highland Avenue Toll on eastbound exit and westbound entrance ramps
Oak Brook Meyers Road Toll Plaza (eastbound)
136 Midwest Road Eastbound exit and entrance only; toll on eastbound entrance ramp
137 IL 83 south (Kingery Highway) No westbound entrance; toll on eastbound entrance ramp
138 To IL 83 north (Kingery Highway) / 22nd Street (Cermak Road) Westbound entrance and exit only; toll on westbound entrance ramp
York Road Toll Plaza (westbound)
I-294 east (Tri-State Tollway) – Indiana Eastbound exit and westbound entrance; exit includes direct exit ramp onto York Road
Cook Hillside I-294 west (Tri-State Tollway) / I-290 west (Eisenhower Expressway) – Milwaukee, Rockford Eastbound exit and westbound entrance
I-294 east (Tri-State Tollway) / IL 38 west (Roosevelt Road) – Indiana Westbound exit and eastbound entrance
I-290 east (All trucks) to US 12 / US 20 / US 45 (Mannheim Road) – Chicago Eastbound exit only

I-290 / IL 110 (CKC) east (Eisenhower Expressway) – Chicago
Eastern terminus; east end of Ronald Reagan Memorial Tlwy.; exit 15A on I-290
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Mehler, Neil H. (July 6, 1987). "Road with Many Names Gets a New One". Chicago Tribune. Retrieved February 16, 2008. [page needed]
  2. ^ Illinois Technology Transfer Center (2006). "T2 GIS Data". Illinois Department of Transportation. Retrieved November 8, 2007. 
  3. ^ Staff (September 2007). "Executive Summary". Congestion-Relief Program Summary (PDF) (Report). Illinois State Toll Highway Authority. pp. 3–6. Archived from the original (PDF) on September 27, 2011. Retrieved February 28, 2011. 
  4. ^ Staff (May 5, 2009). "Washington Street to Finley Road Rebuild & Widen Project & Naperville Road Interchange" (PDF). Reagan Memorial Tollway. Illinois State Toll Highway Authority. Retrieved September 20, 2014. 
  5. ^ Staff (December 2, 2009). "Aurora Toll Plaza to Orchard Road Rebuild & Widen Project" (PDF). Reagan Memorial Tollway. Illinois State Toll Highway Authority. Retrieved September 20, 2014. 
  6. ^ "I-88 Rebuild and Widen Project" (PDF). Reagan Memorial Tollway. Illinois State Toll Highway Authority. Retrieved September 20, 2014. 
  7. ^ Sanchez, Robert (November 20, 2009). "Long-Awaited Eola Road/I-88 Interchange Opens". Daily Herald. Arlington Heights, IL. Retrieved January 3, 2010. 
  8. ^ Griffin, Jake (April 15, 2009). "Tollway Expects Eola Interchange at I-88 by End of Year". Daily Herald. Arlington Heights, IL. Retrieved January 2, 2010. 
  9. ^ Smith, Gerry (November 27, 2009). "New I-88 Interchange at Eola Road Opens in Aurora". Chicago Tribune. Retrieved January 2, 2010. 

External links[edit]

Route map: Bing / Google

KML is from Wikidata