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  2. Illinois Department of Transportation - Wikipedia

    en.wikipedia.org/wiki/Illinois_Department_of...

    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 ...

  3. List of state routes in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_state_routes_in...

    These highways are maintained by the Illinois Department of Transportation (IDOT), with the exception of Illinois Route 390 and parts of Illinois Route 56 and Illinois Route 110, which are maintained by the Illinois State Toll Highway Authority (ISTHA), and all routes that enter the Chicago City Limits are maintained by the Chicago Department ...

  4. Illinois State Police - Wikipedia

    en.wikipedia.org/wiki/Illinois_State_Police

    The Illinois State Police (ISP) is the state police agency of the U.S. state of Illinois. The Illinois State Police is responsible for traffic safety on more than 300,000 miles of total roadway, including 2,185 miles of interstate highways and 15,969 miles of state highways.

  5. Illinois Tollway - Wikipedia

    en.wikipedia.org/wiki/Illinois_Tollway

    The first segment to open was the Jane Addams Memorial Tollway between Devon Avenue and Elgin on August 20, 1958 at 3 p.m. [7] The Toll Highway Act, in its present form, dates from 1967, but has been amended since. [8] Under this Act, promulgated April 1, 1968, ISTHA assumed the assets and obligations of the Illinois State Toll Highway ...

  6. Illinois ditching I-PASS transponders for sticker tags. Here ...

    www.aol.com/illinois-ditching-pass-transponders...

    Why is the Illinois Tollway making this change? The stickers are being introduced in step with 19 other states, the tollway said. Therefore, I-PASS customers will be able to use their sticker tag ...

  7. List of U.S. Highways in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._Highways_in...

    Ronald Reagan Highway / Northwest Highway US 20: 233.93: 376.47 US 20 in East Dubuque: US 12/US 20/US 41 in Chicago: 1926: current Ulysses S. Grant Memorial Highway US 24: 255.13: 410.59 US 24 in Quincy: US 24/US 52 in Sheldon: 1926: current US 30: 153.79: 247.50 US 30 in Fulton: US 30 in Lynwood: 1926: current US 32 — — US 6 at Moline

  8. List of Interstate Highways in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_Interstate...

    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]

  9. Illinois State Highway System - Wikipedia

    en.wikipedia.org/wiki/Illinois_State_Highway_System

    State highways may be maintained by either the municipalities if within a municipality, or the Illinois Department of Transportation. [5] Should a highway run through a municipality, IDOT is authorized to choose a route through the municipality in order to make a route contiguous for through traffic.