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IDOT to reconfigure I‑80/Center Street interchange; city to pay $16,100 for emergency vehicle preemption equipment
Summary
Greg Ruddy briefed the City of Joliet that IDOT will reconfigure the I‑80/Center Street interchange as part of a broader corridor program; the city will pay approximately $16,100 for emergency vehicle preemption equipment while IDOT funds major construction.
Greg Ruddy briefed the City of Joliet pre-council meeting on July 14 about the I‑80 corridor improvements and a specific I‑80 at Center Street interchange project that IDOT will construct.
Ruddy said the overall I‑80 corridor improvements extend roughly 16 miles from Minooka to New Lenox and represent a multi-phase state investment that has been estimated at about $1.3 billion. The Center Street interchange is one segment with an $88,000,000 estimated project cost paid by IDOT; the city’s responsibility is the purchase and maintenance/installation of emergency vehicle preemption (EVP) equipment at about $16,100.
Ruddy said the current interchange is a complex arrangement of ramps and bridges that will be simplified to a more standard configuration while maintaining access. He said bridge reconstruction and rehabilitation along the corridor will affect about 30 structures and that the Des Plaines River Bridge (the rail‑adjacent piece) will be one of the last elements scheduled for completion, with a tentative corridor completion around 2029.
Allison Swisher, public utilities director, said the city contracted V3 Companies and RJN Group for utility relocation design for the project; IDOT will reimburse the city 100% for that utility design work under an intergovernmental agreement on the agenda. Ruddy said ramps constructed by IDOT will be maintained by IDOT, but the city will pay for EVP devices and their installation and maintenance.
The briefing was informational; the intergovernmental agreement is listed on the regular meeting agenda for council consideration (council memo 4 11 25 and 4 12 25).
