Proposed Tri-State Tollway I-294/I-57 Interchange
The Illinois Tollway is coordinating with state and federal transportation agencies in the planning of a proposed Tri-State Tollway I-294/I-57 Interchange.
Project Status
The Illinois Tollway administered the Phase I environmental phase of the project and IDOT is currently administering the Phase II design phase of the project, which is scheduled to be complete in spring 2010. It has not yet been determined which agency will lead the construction phase of the project; however, it will likely be a joint effort by the Illinois Tollway and IDOT.
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Proposed Interchange Design
The proposed improvements include an interchange that provides for six of the eight potential movements between I-294 and I-57, including a partial interchange at I-294 and 147 th Street.
Proposed Improvements include:
- Access from northbound I-294 to northbound I-57
- Access from southbound I-294 to northbound and southbound I-57
- Access from northbound I-57 to northbound I-294
- Access from southbound I-57 to northbound and southbound I-294
- Access from southbound I-294 to 147 th St.
- Access from northbound I-294 to 147 th St.
- Access to and from I-57 and 147 th Street as a collector-distributor road
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Project Schedule
Complete - Phase I and transition to Phase II
Underway - Phase II Design and approval of Environmental Assessment
Next steps -
- Secure Right-of-Way and Environmental Permits
- Identify source of construction funding
- Determine construction schedule
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Project Cost
The current construction cost estimate for the I-294/I-57 Interchange is approximately $580 million. Construction is expected to be funded through a combination of local, state and federal funding sources. To date the Illinois Tollway has committed $46.5 million as part of the Congestion-Relief Program, the South Suburban Mayors and Mangers Association was a recipient of a $2.4 million federal grant, and IDOT has agreed to fund $50 million for construction of the interchange.
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Purpose
The purpose of the proposed interchange between the Tri-State Tollway (I-294) and I-57 is to provide a linkage between two interstates, relieve congestion on local routes, enhance economic development of the region, and improve overall transportation throughout the region.
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