Interstate 88 (Illinois)

I-88 runs concurrently with Illinois Route 110 (IL 110) and its speed limit is west of IL 47. East of this point, the speed limit is to the Aurora toll plaza, and for the rest of its route. East Moline to Rock Falls Starting at I-80 at a cloverleaf interchange, IL 5 ends there while IL 92 continues eastward. I-88 begins at that interchange and then traverses eastward. Immediately east of the cloverleaf, I-88, IL 92, and IL 110 meet a road at a diamond interchange. This road used to be part of IL 2 and IL 92. They then traverse eastward until IL 92 branches off east near Joslin. The freeway then meets the next two local roads, each having a diamond interchange. One of the interchanges serves Hillsdale while the other one serves Erie. The two routes then meet IL 78 near Lyndon. Near Como, they then meet US 30 at a trumpet interchange. South of Rock Falls, they then meet IL 40 at a diamond interchange. East of Yeoward Addition, they again meet U.S. Route 30 (US 30) at a diamond interchange. Rock Falls to Aurora After US 30, I-88/IL 110 becomes an ISTHA-maintained tollway. However, at the IL 26 interchange, there are no tolls present on each ramp. Beyond that, the tollway crosses under US 52 without direct access. Then, the tollway crosses through its first mainline toll plaza. Further east, they meet IL 251 (at a diamond interchange) and I-39/US 51 (at a cloverleaf interchange) at Rochelle. From then on, they meet another mainline toll plaza. In DeKalb, they meet Annie Glidden Road at a trumpet interchange, then cross over IL 23 without direct access, serve DeKalb Oasis, and meet Peace Road at a four-ramp parclo. South of Nottingham Woods, they meet IL 47 at a five-ramp parclo with two ramps. Further east, IL 56 enters eastward on the tollway. They then meet Orchard Road at a four-ramp parclo. Then, IL 56 leaves the freeway at the IL 31 interchange. Aurora to Hillside Across the Fox River, I-88/IL 110 meets another toll plaza. Then, the tollway meets Farnsworth Avenue at a six-ramp parclo near the Chicago Premium Outlets, Eola Road, IL 59 at a diverging diamond interchange, Winfield Road at a diamond interchange, Naperville Road at a mix of partial interchanges, and IL 53 at an incomplete parclo. Beyond that, they meet I-355 at a mix of interchanges. At Highland Avenue interchange, all but the westbound onramp are present. The other one enters I-88 westbound from Downers Drive. After that, the eastbound tollway meets another mainline toll plaza. After that, I-88 and IL 110 then meet Midwest Road at a two-ramp incomplete parclo (no westbound on/offramp), then IL 83 at a three-ramp incomplete parclo, 22nd Street at a right-in/right-out (no eastbound on/offramp), another mainline toll plaza for westbound traffic, and I-294/IL 38. Beyond I-294/IL 38, the tollway briefly becomes a free road before I-88 ends at I-290. At that point, IL 110 continues east via I-290 all the way toward the Jane Byrne Interchange near downtown Chicago. ==History==

Original section Opened November 21, 1958, the East–West Tollway was initially designated as part of U.S. Route 30 Toll (US 30 Toll). The original routing ran from the I-294 interchange near Hillside to US 30/IL 47 near Sugar Grove. IL 56 (previously IL 55 west of Oak Brook) ran along the East-West Tollway between North Aurora and Sugar Grove. In 1966, with the removal of US 30 Toll, Illinois Route 190 was assigned to the tollway. Extensions IL 190 was renumbered as IL 5 in 1971, as construction on the 69-mile-long tollway extension to Rock Falls began that year. Consequently, IL 190 was removed from the stretch between Aurora and Sugar Grove, making that section strictly IL 56. The extension opened in stages in 1974. The extension to DeKalb, Rochelle, and Rock Falls opened on August 15, September 29, and November 15, respectively. Starting from Como, there was a plan to build two federal-aid primary (FAP) freeways connecting to the following cities: FAP 402 to Clinton, Iowa, and FAP 403 to East Moline. Ultimately, only FAP 403 was being built. By 1979, the entirety of FAP 403 opened, extending the IL 5 designation over the completed freeway and supplanting IL 2 west of Sterling. Redesignation to Interstate 88 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, the NMSL was amended in 1987 to permit speed limits on rural stretches of Interstate Highways only. Even though IL 5 was fully up to Interstate Highway standards, it still had to carry a limit because of this wording in the 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 redesignate IL 5 as an Interstate, and, in 1987, AASHTO approved the request and assigned the I-88 numbering to the freeway portion of IL 5. The NMSL would be completely repealed only eight years later in 1995, but the I-88 shields remain to this day. Later history After the death of Illinois native and former President Ronald Reagan in 2004, ISTHA 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. 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 (equivalent to $ in ) was budgeted for I-88 over that period. 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. Between IL 56 and the Aurora Toll Plaza, I-88 was reconstructed and widened to three lanes in each direction, including the reconstruction of the IL 31 interchange and new bridges over the Fox River. ==Exit list==