IL 56 follows the two routes. 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 and IL 110 meet another toll plaza. Then, they meet Farnsworth Avenue at a six-ramp parclo near the Chicago Premium Outlets. From then on, they meet Eola Road indirectly, 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, they meet 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, I-88 briefly leaves the tollway before ending at I-290. At that point, IL 110 continues eastward via I-290. History Prior to its designation as an Interstate Highway, the route was known as IL 5 and, before that, IL 190. In 1975, IL 5 was extended westward to Rock Falls. Back then, only a small portion south of Rock Falls was free. At that point, there were two proposed freeways connecting each individual cities, FAP 402 (a proposed freeway to Clinton, Iowa) and FAP 403 (another proposed freeway to East Moline). However, only FAP 403 was being built. By 1979, IL 5 finished completing the FAP 403 freeway. 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 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