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Illinois has used route numbers from IL 1 through IL 186 inclusive[2]as well as many others up to IL 594. [3] Illinois has used letter suffixes on several state highways, including "A", "B". "C", "N" (for north) and "S" (for south).[2] A, B and C suffixes were used for spurs of a nearby route, the N and S were legs of IL 113on either side of ...
Interstate 490 (I-490), also known as the O'Hare West Bypass and Western O'Hare Beltway, is an electronic toll highway and a beltway that is currently under construction near Chicago, Illinois; it will run along the west side of O'Hare International Airport. [1] The tollway will connect I-294 (Tri-State Tollway) to a western access point to the ...
The Illinois Department of Transportation (IDOT) is a state agency in charge of state-maintained public roadways of the U.S. state of Illinois. In addition, IDOT provides funding for rail, public transit and airport projects and administers fuel tax and federal funding to local jurisdictions in the state. The Secretary of Transportation reports ...
The State Highway System was created in 1918 with the first State Bond Issue (SBI) Routes, 1 through 46. Bonds were floated to pay for specific routes. SBI # 1 paid for Route 1, and so on. These initial 46 route numbers marked the major infrastructure roads desired by the state legislature in 1918. Remarkably, many of these numbers still exist ...
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. 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]
Illinois Route 390 (IL 390), previously known as the Elgin–O'Hare Expressway, now known as the Elgin–O'Hare Tollway, is a 9.8-mile (15.8 km) controlled-access toll road in northeastern Illinois. IL 390 currently connects U.S. Route 20 (US 20, Lake Street) in Hanover Park to the interchange with Illinois Route 83 (IL 83) and Thorndale Avenue ...
The Illinois State Toll Highway Authority (ISTHA) is an administrative agency of the U.S. state of Illinois charged with building, operating, and maintaining toll roads in the state. The roads, as well as the authority itself, are sometimes referred to as the Illinois Tollway. [ a ] The system opened in 1958 in the Chicago area, and has ...
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 100.