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The purpose of the Illiana Corridor is to provide a sustainable transportation solution that would improve east-west connectivity in the general vicinity of I-55 to the west and I-65 to the east.

On June 2, 2015, Illinois Governor Bruce Rauner announced: “In light of the state's current fiscal crisis and a lack of sufficient capital resources, the Illiana Expressway will not move forward at this time. As a result, the Illinois Department of Transportation will remove the project from its current multi-year plan. It is the determination of IDOT that the project costs exceed currently available resources.”

The Indiana Department of Transportation has temporarily suspended development of the Illiana and remains ready to proceed with the project when Illinois is ready.