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U.S. Route 6 Grand Army of the Republic Highway US 6 highlighted in red Route information Maintained by IDOT Length 179.88 mi (289.49 km) Existed 1932 –present Major junctions West end I-74 / US 6 in Moline Major intersections I-74 / I-280 in Moline I-80 / IL 110 (CKC) in Colona I-180 in Princeton I-39 / US 51 in LaSalle I-55 in Channahon I-80 in Joliet I-355 Toll in New Lenox I-57 in ...
Highway markers for Interstate 57, U.S. Route 45, Illinois Route 1 and the Chicago Skyway Overall map of system: freeways in light blue, tollways in green, other highways in yellow System information Maintained by IDOT, ISTHA, and SCC Formed November 5, 1918 (1918-11-05) Highway names Interstates Interstate X (I-X) US Highways U.S. Route X (US X) State Illinois Route X (IL X) System links ...
Illinois's state route numbers originated in 1918 as State Bond Issues 1 through 46, used to finance the new roads. The numbers of the bond issues were then used to mark the highway routes along the way. Another series of bond issues were authorized in 1924 (47–185) and again were used to mark the roads they paid for.
Illinois Route 91 Route information Maintained by IDOT Length 40.72 mi (65.53 km) Existed 1941 –present History Signed as IL 30 before 1941 Major junctions South end US 150 in Peoria North end US 34 / IL 78 in Kewanee Location Country United States State Illinois Counties Peoria, Stark, Henry Highway system Illinois State Highway System Interstate US State Tollways Scenic ← IL 90 → IL 92 ...
Illinois Route 3. Illinois Route 3 ( IL 3) is a 187.44-mile-long (301.66 km) major north–south arterial state highway in southwestern Illinois. It has its southern terminus at Cairo Junction (about four miles (6.4 km) north of Cairo) at the intersection of U.S. Route 51 (US 51) and Illinois Route 37, and its northern terminus in Grafton at IL ...
U.S. Route 51 US 51 highlighted in red, former alignment in blue Route information Maintained by IDOT and ISTHA Length 415.95 mi (669.41 km) Length may include both directions of route where it is routed along one-way streets. Existed 1926–present Major junctions South end US 51 US 62 near Wickliffe, KY Major intersections I-57 / IL 3 near Cairo I-64 near Richview I-70 at Vandalia I-72 at ...
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 ...
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).