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This is a list of the area codes in the state of Illinois and its numbering plan areas in the North American Numbering Plan.. All NPAs within Illinois. 217/447: Central Illinois, including the region running west from the Illinois-Indiana border through Danville, Effingham, Champaign–Urbana, Decatur, Springfield, Quincy until Illinois' western border with Missouri and Iowa
AASHTO does, however, apply similar standards as to new U.S. Highways, requiring a new business Interstate to meet certain design standards. [2] Business Interstates are more commonly found in the western regions of the United States, as well as both across the Great Plains and in the state of Michigan.
Originally the "22 Loop" around the Chicago metro area. It followed the current IL-22, then went to Crystal Lake via US-14, Aurora via IL-31 and Lynwood on US-30. IL 22A — — — — 1924: 1925 Became part of IL 63, which was deleted in 1973; Now IL 68: IL 23: 126.17: 203.05 IL 116 in Pontiac: US 14 in Harvard: 1918: current
The Interstate Highways in Illinois are all segments of the Interstate Highway System that are owned and maintained by the U.S. state of Illinois. [3] The Illinois Department of Transportation (IDOT), Illinois State Toll Highway Authority (ISTHA), and Skyway Concession Company (SCC) are responsible for maintaining these highways in Illinois.
U.S. Route 6 (US 6) in the state of Illinois is an east–west arterial surface road that runs 179.88 miles (289.49 km) from the city of Moline in the Quad Cities area to Lansing at the Indiana state line.
Illinois Route 6 is a 4-lane freeway entirely in Peoria County in central Illinois. It begins as a northern extension of Interstate 474 at Interstate 74 west of Peoria, and ends at Illinois Route 29 at the 9th Mile in Mossville, south of Chillicothe. The freeway currently has a total length of 10.11 miles (16.27 km), including the connector ...
The state of Illinois uses exit numbers on three freeways, on Illinois Route 6 (IL 6) between in Peoria, IL 390 in the northwestern suburbs of Chicago, and IL 255 in the suburbs of St. Louis. The state of Indiana uses exit numbers on two highways with freeway segments, on US 31 between Indianapolis and South Bend and SR 912 in northwest Indiana.
The Illinois Department of Transportation was created by the 77th Illinois General Assembly in January 1972. The department absorbed the functions of the former Department of Public Works and Buildings, acquired some planning and safety inspection functions of other state agencies, and received responsibility for state assistance to local mass transportation agencies such as the Chicago-area ...