Interstate 474 (I-474) is an Interstate Highway loop route that provides a southwestern bypass around the north-central Illinois city of Peoria. I-474's parent Interstate is I-74. As the first digit of the Interstate's number is even, it follows the established convention of providing a loop around a city. I-474 is 14.88 miles (23.95 km) long. I-474 is the highest numbered route in the state of Illinois. It is also, excluding the proposed I-274 in North Carolina, the only auxiliary route of I-74.
U.S. Route 150 is a 571-mile (919 km) long northwest-southeast United States highway, signed as east–west. It runs from U.S. Route 6 outside of Moline, Illinois to U.S. Route 25 in Mount Vernon, Kentucky.
Illinois Route 40 is a 112.05-mile-long (180.33 km) north–south route in central portion of the U.S. state of Illinois. It runs from Interstate 74 (I-74) in East Peoria north to IL 78 at Mt. Carroll, just south of U.S. Route 52 and IL 64.
Illinois Route 60 is a 17.22-mile-long (27.71 km) east–west state highway in Lake County, in northeastern Illinois. It connects the village of Volo at Illinois Route 120 just east of Illinois Route 59 with the city of Lake Forest at U.S. Highway 41.
Illinois Route 394, also known as the Calumet Expressway, is a 14.6-mile-long (23.5 km) four-lane state highway that travels north from a junction with IL 1 south of Crete to an interchange in South Holland with Interstate 294/Interstate 94/Interstate 80. Although not an Interstate Highway, Illinois 394 is an Interstate-standard highway from its junction with Sauk Trail at Sauk Village to its northern terminus at the I-294/I-94/I-80 interchange in South Holland. IL 394 functions as a bypass of IL 1 to the west, of which it was formerly part, and provides access to southern suburbs of Chicago.
Illinois Route 29 is a two to four lane state road that runs south from U.S. Route 6/Illinois Route 89 at Spring Valley to U.S. Route 51/Illinois Route 16 at Pana, running through Pekin, Peoria and Springfield. The nearest major north–south highway, Interstate 39, runs parallel to Illinois 29, but approximately fifty miles to the east. Illinois 29 is 175.36 miles (282.21 km) long.
Illinois Route 38 is an 88.86-mile-long (143.01 km) west–east state highway that runs across northern Illinois. It runs from U.S. Route 52 (US 52) in downtown Dixon to US 12/US 20/US 45 in Westchester. It runs concurrently with the Lincoln Highway between Dixon and the junction of Illinois Route 31 in Geneva where it transitions via State Street onto Roosevelt Road at the junction of Kirk Road and continues through the western suburbs to its terminus at the junction of Mannheim Road. Roosevelt Road continues on an additional 14 miles without a route designation until terminating at US 41.
Illinois Route 116 is a 176.07-mile-long (283.36 km) cross-state rural state highway that runs from U.S. Route 34 by Gladstone east to the intersection of US 45 and Old US 45, on the north side of Ashkum.
Interstate 88 (I-88) is an Interstate Highway in the US state of Illinois that runs from an interchange with I-80 near Silvis and Moline to an interchange with I-290 and I-294 in Hillside, near Chicago. I-88 is 140.60 miles (226.27 km) long. This route is not contiguous with I-88 in New York. Since 2010, most of I-88 has been part of the Chicago–Kansas City Expressway. The highway also runs through the cities of Aurora, Naperville, DeKalb, and Dixon. East of Rock Falls, the route is a part of the Illinois Tollway system.
Illinois Route 137 is a 23.49-mile-long (37.80 km) state highway in northeast Illinois. It runs from the Wisconsin Border north of Winthrop Harbor south to North Chicago, west to Libertyville, and then back northwest to Grayslake, terminating at IL 83 just south of IL 120.
Illinois Route 126 (IL 126) is a 17.25-mile-long (27.76 km) east–west state highway in the northern part of the U.S. state of Illinois. It travels from IL 47 in Yorkville to Interstate 55 (I-55) between Plainfield and Bolingbrook.
Illinois Route 336 is a four-lane freeway/expressway combination that serves western Illinois. It is also used by the Illinois Department of Transportation (IDOT) as a part of Federal-Aid Primary Highway 315 (FAP315) to refer to a future project connecting the cities of Quincy and Peoria via underserved Macomb.
Interstate 155 (I-155) is a north–south spur of I-55 that provides an Interstate connection for the Illinois cities of Peoria and Lincoln. The northern terminus is just east of Peoria, at I-74 exit 101 in Morton. The southern terminus, which is northwest of Lincoln, is located on I-55 at exit 127. The highway is 32.13 miles (51.71 km) long.
Interstate 74 (I-74) in the US state of Illinois is a major northwest–southeast Interstate Highway that runs across the central portion of the state. It runs from the Iowa state line at the Mississippi River near the city of Rock Island and runs southeast to the Indiana state line east of Danville, a distance of 220.34 miles (354.60 km). The highway runs through the major cities of Champaign, Bloomington, Peoria, and Moline.
Interstate 80 (I-80) is a part of the Interstate Highway System that runs from San Francisco, California, to Teaneck, New Jersey. I-80 enters Illinois from Iowa in the west, southwest of Rapids City, and runs generally eastward through East Moline, LaSalle, and Joliet, before entering Indiana in Lansing. The Interstate runs for approximately 163.52 miles (263.16 km) through the state.
U.S. Route 150 in Illinois is a 267.47-mile-long (430.45 km) east–west highway that runs from US 6 near the Quad City International Airport in Moline to the Indiana state line near Vermilion. It closely parallels Interstate 74 (I-74) between Moline and Danville.
U.S. Route 54 (US 54) in Illinois is a 23.9-mile-long (38.5 km) east–west highway that travels from the Champ Clark Bridge on the Missouri state line to I-72/US 36/IL 107 south of Griggsville. At its greatest extent, US 54 used to continue east to Springfield, then northeast to Onarga, and then north all the way to Downtown Chicago.
In the U.S. state of Illinois, U.S. Route 36 (US 36) is an east–west highway that runs across the central portion of the state. It runs east from Missouri over the Mark Twain Memorial Bridge over the Mississippi River with Interstate 72. The eastern terminus of U.S. 36 in Illinois is located near the unincorporated area of Raven near the Illinois-Indiana state line. This is a distance of 216.47 miles (348.37 km).
The Chicago–Kansas City Expressway is a highway that runs between Chicago, Illinois, and Kansas City, Missouri. The road is known as Route 110 in Missouri and Illinois Route 110 (IL 110) in Illinois. IL 110 was created through legislation on May 27, 2010, as the designated route for the Illinois portion of the Chicago–Kansas City Expressway.
Illinois Route 179 was a 16.3-mile-long (26.2 km) state highway in LaSalle County, Illinois. The route ran from IL 251 south of Rutland north to IL 18 west of Streator. The highway was established in 1935 and reached its full length in 1940; it was decommissioned by 1995. The route is now part of LaSalle County Route 44.
I-74 / I-474 in Peoria 
US 150 in Peoria
IL 29 in Mossville 
