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I-55 / US 61 / MO 74 in Cape Girardeau: I-55 / US 61 in Fruitland — — I-55 BL: 5.015: 8.071 I-55 / US 67 / US 61 in Crystal City: I-55 / McNutt Street in Herculaneum — — I-57 BL: 2.94: 4.73 I-57 / US 60 / MO 105 in Charleston: I-57 / US 62 / MO 77 in Charleston — — I-70 BL: 6.665: 10.726 I-70 / US 40 / MO 5 in Boonville: I-70 / MO ...
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). [2] 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).
Since the 1950s, US 24 through Illinois and Missouri has been considered as one route of various Chicago to Kansas City federal Interstate proposals (1956, 1968, 1972). None of these proposals received federal funding or support. Portions of US 24 are incorporated in the Chicago–Kansas City Expressway. This highway involved new signage ...
This is a list of U.S. Highways in Illinois, all of which are owned and maintained by the U.S. state of Illinois. The Illinois Department of Transportation (IDOT) is responsible for maintaining the U.S Highways in Illinois. The system in Illinois consists of 20 primary highways.
Missouri also maintains a secondary set of roads, supplemental routes, which are lettered rather than numbered. Route 366 in St. Louis Missouri has also changed highway designations with a US route or an interstate with the same number is designated through the state (Route 40 was redesignated Route 14 to avoid duplicating numbers with US-40 ...
Illinois Route 72 cross-sign mounted on a stoplight in Hoffman Estates. SBI Numbers are still used for several purposes, even when they do not match the posted number. IDOT District maps still refer to SBI numbers on the various roads it maintains, along with other non-posted designations that refer to how the route was authorized.
Interstate 55 (I-55) is a major north–south Interstate Highway in the US state of Illinois that connects St. Louis, Missouri, to the Chicago metropolitan area.It enters the state from Missouri near East St. Louis, Illinois, and runs to U.S. Route 41 (US 41, Lake Shore Drive) near Downtown Chicago, where the highway ends, a distance of 294.38 miles (473.76 km). [2]
When it was realized that a national highway system was needed, the Federal Aid Highway Act of 1956 provided for a highway replacing the old US 66 which I-55 filled. I-55 was originally constructed in the 1960s, to extend a section of US 66 between I-294 and Gardner which had been converted into a freeway and had Interstate signage installed in 1960.