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Illinois Department of Transportation

Interstate 57 Expansion in Southern Illinois

The I-57 expansion is one of the largest corridor improvements projects in our system, and is undergoing a multi-year transformation, expanding from four to six lanes. This major infrastructure upgrade is designed to ease congestion, improve safety, and accommodate future growth along a nearly 37-mile corridor on I-57 in southern Illinois. Construction is ongoing through 2028.

Rebuild Illinois is investing nearly $325 million to complete the expansion of I-57 from Marion to Mt. Vernon, as well as replacing bridges over Marcum Branch, Gun Creek, Dodds Creek and reconstructing the I-57/64 interchange with Illinois 15.

Peek Into I-57 Improvements!

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The 9-mile project on I-57 begins north of West Frankfort at milepost 66 and ends north of Benton at milepost 75 in Franklin County. The work includes adding one lane in each direction, installing a median barrier, resurfacing existing lanes, upgrading storm sewers and drainage structures, replacing the dual bridges over the Middle Fork of the Big Muddy River, updating pavement markings and deficient guardrails, and installing raised reflectors and rumble strips. 

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The project covers approximately 9.7 miles along I-57 from about 2,000 feet south of Marcum Branch Bridge near milepost 75 to south of Atchison Creek Bridge near milepost 85.

Work includes adding an additional lane in each direction, installing a median barrier, resurfacing existing lanes, adding storm sewers and drainage structures, updating pavement markings and deficient guardrails, and installing raised reflectors and rumble strips. The project involves earthwork, HMA or PCC pavement, erosion control, traffic management, guardrail installation, underdrains, drainage improvements, pavement markings, signage, overhead truss, and bridge work.

Located just north of the Atchison Creek Bridge near milepost 85 and extending to the I-64 Tri-Level south of Mt. Vernon, this project covers approximately 6.38 miles northbound and 6.27 miles southbound.

The work includes adding one lane in each direction, installing a median barrier, resurfacing existing lanes, upgrading storm sewers and drainage structures, updating pavement markings and deficient guardrails, and installing raised reflectors and rumble strips. Additional work involves earthwork, HMA or PCC pavement, erosion control, traffic management, guardrail installation, underdrains, drainage improvements, signage, replacing the bridge over Dodd’s Creek, and overlaying the bridge over Casey Fork Creek.

The project is located at the I-57/64 interchange with Illinois 15 on the west side of the Mount Vernon, Jefferson County. It includes Illinois 15 from Potomac Boulevard/45th Street to 44th Street, spanning 0.55 miles.

Work involves reconstructing the existing interchange into a diverging diamond interchange, replacing the Illinois 15 grade separation structure, and reconstructing associated Illinois 15 approaches and ramps. Additional improvements include PCC pavement on granular sub-base, PCC shoulders, concrete curb and gutter, concrete medians, sidewalk, entrances, traffic signal upgrades, inlets, manholes, storm sewer, culverts, erosion control, earthwork and grading, pavement marking, signage and sign trusses, and landscaping. 

This project is located along I-57 from Westminster Drive in Marion to just south of the I-24 interchange, covering approximately 7.97 miles in Williamson County’s Marion and Southern Townships.

Work includes adding one lane in each direction, installing a median barrier or center median ditch, resurfacing existing lanes, adding storm sewers and drainage structures, updating pavement markings and deficient guardrails, and installing raised reflectors and rumble strips. The project also includes earthwork, HMA pavement and resurfacing, erosion control, traffic management, guardrail installation, underdrains, drainage improvements, pavement markings, signage, rumble strips, bridge work, and all other necessary tasks to complete this project.

Project Gallery

The FREIGHT Grant project is located just south of the Country Club Road overpass in Franklin and extending north to milepost 66 in Franklin County, spanning approximately 3.2 miles.

Work included adding an additional lane in each direction, installing a median barrier, resurfacing existing lanes, updating pavement markings and deficient guardrails, and installing raised reflectors and rumble strips. The improvements also included earthwork, HMA pavement, HMA resurfacing, erosion control, guardrail, seeding, underdrains, drainage, pavement markings, and signage. 

See Our Projects in the News!

I-57 Through the Camera Lens!

This section of I-57 is located north of West Frankfort and ends north of Benton in Franklin County.

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Illinois Department of
Transportation
Hanley Building
2300 S. Dirksen Parkway
Springfield, IL 62764

(217) 782-7820 or
TTY (866) 273-3681

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