Tri-State Tollway (I-294)

I-55 Interchange Project

Project Overview

To accommodate the rebuilding and widening of the Central Tri-State Tollway (I-294), the Illinois Tollway, in conjunction with the Illinois Department of Transportation, will reconstruct and improve several ramps and bridges at the I-55 Interchange, along with mainline roadway reconstruction and widening in the area. The work will not change the existing configuration of the interchange.

In 2024, the Tollway is scheduled to complete pavement work between LaGrange Road and I-55 and continue improvements at the I-55 Toll Plaza (Plaza 37).

Construction in this area is scheduled to be complete in 2025.

 

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Construction Update (4/10/25)

Access to the southbound I-294 ramp to both directions of I-55 has moved more a half mile to the north. Be alert to signage directing customers when to exit.

Please check the Daily Construction Alert for up-to-date closure information.

Customer Impacts

Electronic message signs and construction signage will be put in place in advance to alert drivers to scheduled lane closures, traffic patterns and work zone speed limits.

The Tollway will use traffic shifts and lane reductions when possible to maintain access, however temporary closures and detours will be scheduled as needed to safely accommodate construction work.

Purpose

Improvements to the I-55 Interchange are part of the $4 billion Central Tri-State Project, which is reconstructing and widening the roadway between Balmoral Avenue and 95th Street to provide congestion relief, update old infrastructure to meet current and future transportation demand and address regional needs.

Local Coordination

Construction in this area is being coordinated with the Illinois Department of Transportation, Cook County, Village of Burr Ridge, Village of Hinsdale, Village of Indian Head Park, Village of Western Springs, City of Countryside, Flagg Creek Water Reclamation District, ComEd and Nicor, as well as local fire and police departments.

Work Zone Safety

The Illinois Tollway is committed to ensuring that the Central Tri-State Tollway (I-294) and local roads safe for both drivers and workers during construction, which is part of the agency’s overall commitment to roadway safety.

Work zone speed limits are in effect in all construction zones 24/7 and drivers should continue to watch for changing traffic patterns and use caution, especially when workers are present. On I-294, a 45 mph work zone speed limit is in effect throughout the construction season.

News
11/14/2024 - Traffic Shifts Scheduled for Winter Travel Configuration on the Central Tri-State Tollway (I-294) Between I-55 and Cermak Road
9/27/2024 - Lane Reduction on Ramp from Southbound Tri-State Tollway (I-294) to I-55 Scheduled to Begin This Weekend
10/31/2023 - Access to the Hinsdale Oasis Restricted From I-55 to Northbound I-294 Ramp as Part of Central Tri-State (I-294) Project
7/6/2023 - Overnight Ramp and Lane Closures for Traffic Shift Scheduled Next Week on I-55 at Tri-State Tollway (I-294)
2/8/2023 - Reopening Ramp to Southbound I-55 and Wolf Road Rescheduled on Northbound Tri-State Tollway (i-294)
2/3/2023 - Traffic Shift Scheduled Next Week on Northbound Tri-State Tollway (I-294) Including Reopening Ramps to Southbound I-55 and Wolf Road
10/5/2022 - Overnight Closures Scheduled on Central Tri-State Tollway (I-294) for I-55 Ramp Bridge Work
9/16/2022 - Nightly Ramp Closure Scheduled at I-55 Interchange on Tri-State Tollway (I-294) for Bridge Reconstruction Work
8/24/2022 - Updated: Overnight Closures Rescheduled on I-55 for Central Tri-State Tollway (I-294) for Mainline Bridge Reconstruction Work
8/18/2022 - Detours Scheduled on Joliet Road Ramp for Bridge Repair Work as Part of the Central Tri-State Tollway (I-294) Project
4/27/2022 - Overnight Lane Closures Scheduled Next Week on Wolf Road for Central Tri-State Tollway (I-294) Work
3/29/2022 - Closures and Detours Scheduled Through End of Year at I-55 and Wolf Road Ramps on Central Tri-State Tollway (I-294)
3/10/2022 - Traffic Shifts Resuming on Central Tri-State Tollway (I-294) for Mainline Reconstruction Between I-55 and 95th Street
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