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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 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]

  5. Interstate 80 in Illinois - Wikipedia

    en.wikipedia.org/wiki/Interstate_80_in_Illinois

    In 2020, the Illinois Department of Transportation began a study, which is expected to cost $20,000, to replace the bridge. [37] The plan from 2020 to 2025 is to spend $304.5 million on the bridge. By 2025, Illinois is expected to spend $23 billion on concrete, as well as fixing and expanding 4,200 miles (6,800 km) of roadways and 9 million ...

  6. Illinois Zephyr and Carl Sandburg - Wikipedia

    en.wikipedia.org/wiki/Illinois_Zephyr_and_Carl...

    The Illinois Zephyr and Carl Sandburg are a pair of passenger trains operated by Amtrak on a 258-mile (415 km) route between Chicago and Quincy, Illinois.As Illinois Service trains, they are partially funded by the Illinois Department of Transportation.

  7. U.S. Route 67 in Illinois - Wikipedia

    en.wikipedia.org/wiki/U.S._Route_67_in_Illinois

    U.S. Route 67 (US 67) is a component of the United States Numbered Highway System that connects Presidio, Texas, to Sabula, Iowa.In Illinois, it serves the western region of the state known as Forgottonia, named for the lack of regional transportation and infrastructure projects.

  8. Illinois Route 255 - Wikipedia

    en.wikipedia.org/wiki/Illinois_Route_255

    Illinois Route 255 (IL 255), also referred to as the Alton Bypass, is a northwesterly extension of Interstate 255 (I-255) in southwestern Illinois in the St. Louis metropolitan area. IL 255 starts at I-270 in Pontoon Beach and ends at U.S. Route 67 (US 67) in Godfrey , at a total length of approximately 23.3 miles (37.5 km).

  9. Interstate 64 in Illinois - Wikipedia

    en.wikipedia.org/wiki/Interstate_64_in_Illinois

    Interstate 64 (I-64) in the US state of Illinois is a major east–west Interstate Highway that runs through southern Illinois from the St. Louis metropolitan area east to the Indiana state line near Grayville, Illinois. It travels a distance of 130.4 miles (209.9 km).