Elk Boulevard) to access Rand Road, as all turns are prohibited from US 45 to US 12. Eastbound US 12 joins with southbound US 45. In Des Plaines, US 12/US 45 separates, as southbound traffic travels on Graceland Avenue, while northbound traffic runs one block east. In downtown Des Plaines, US 12/45 has a major intersection with US 14 (Miner Street) at a busy at-grade crossing with the Harvard Subdivision of the Union Pacific Railroad. Des Plaines to Hickory Hills After turning south from Des Plaines, US 12/US 45 forms a major north–south artery through the western suburbs. North of Cermak Road the route is known as Mannheim Road, while south of Cermak Road it is known as La Grange Road. The distance from the intersection of US 12/US 45 and US 14 in Des Plaines to the US 12/US 20/US 45 split in Hickory Hills is . US 12/US 45 runs through various streets in Des Plaines before following Mannheim Road north of O'Hare International Airport. This routing also closely parallels the north–south orientation of the Canadian National Railway rail line. US 12/US 45 intersects IL 72 (Higgins Road) at the northeast corner of the airport, and then travels south along the eastern border of the airport. There is a full interchange with I-190 for passenger airport traffic. At the southeast corner of the airport, a signalized intersection terminates a brief expressway portion of IL 19 (Irving Park Road). South of Irving Park Road, US 12/US 45 travels beneath the Bensenville Bridge on I-294 (Tri-State Tollway) while also crossing over the Franklin Park rail yard; however, there is no interchange with I-294 at this point. This rail line also carries Metra Milwaukee District West trains. In Melrose Park, US 12/US 45 has a grade-separated intersection with IL 64 (North Avenue), a major east–west artery west of Chicago. About a mile (1.6 km) south, US 20 joins with US 12/US 45 to form a triple concurrency over the Union Pacific Railroad's Proviso Yard as well as the mainline tracks of the Geneva Subdivision. US 12/US 20/US 45 continues south and becomes the eastern endpoints of two state routes: IL 56 in Bellwood and IL 38 in Westchester. In between lies a full intersection with I-290 (Eisenhower Expressway). In downtown La Grange, US 12/US 20/US 45 intersects with US 34 (Ogden Avenue), making it the only location in the Chicago area