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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. List of Interstate Highways in Illinois - Wikipedia

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

    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.

  5. IDOT: Work coming to two Morton bridges spanning I-155 - AOL

    www.aol.com/idot-coming-two-morton-bridges...

    The Illinois Department of Transportation will begin replacing joints and resurfacing decks on two Morton bridges Aug. 19.

  6. 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.

  7. Illinois Tollway - Wikipedia

    en.wikipedia.org/wiki/Illinois_Tollway

    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 .

  8. Indiana Department of Transportation - Wikipedia

    en.wikipedia.org/wiki/Indiana_Department_of...

    A national highway safety program was initiated with the Federal-Aid Highway Act of 1966. The program established safety standards for motor vehicles and authorized matching grants to carry out safety activities. The State Highway Commission served Hoosiers well until 1981 when it became the Indiana Department of Highways (IDOH).

  9. Illinois Route 336 - Wikipedia

    en.wikipedia.org/wiki/Illinois_Route_336

    Illinois Route 336 (IL 336, also known as the Thomas A. Oakley Memorial Highway) 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.