US20 Interchange Improvement Study
Illinois Route 390 Tollway
U.S. Route 20 Interchange Improvement Study
The Illinois Tollway is conducting a Preliminary Engineering Study for the Illinois Route 390 Tollway at U.S. Route 20 (Lake Street) Interchange Improvement. This study will determine if extending the interchange ramps to County Farm Road, along with local intersection improvements, can address local traffic issues.
The Phase One for the study is expected to require about 18 months to complete with a planned study conclusion scheduled in 2020.
Phase One for the study will be done in coordination with the Village of Hanover Park, DuPage County and the Illinois Department of Transportation. Work in the study area will include:
- Existing traffic studies and alternative analysis
- Environmental field work and studies
- Drainage studies
- Noise analysis
Why is the study needed?
The existing interchange at U.S. Route 20 (Lake Street) is the west terminus of the Illinois Route 390 Tollway. The Tollway is coordinating with the Village of Hanover Park to improve the flow of traffic accessing the U.S. Route 20 Interchange to address the local traffic problems.
The Village of Hanover Park would like to remove the through traffic from Greenbrook Boulevard by expanding the interchange to move the traffic directly to County Farm Road. Peak-hour traffic on Greenbrook Boulevard conflicts with the school bus, car and pedestrian traffic to the multiple schools located on the Greenbrook Boulevard.
The study is following the National Environmental Policy Act, which will allow the local communities to seek federal funding for a future project. The Tollway Roadway and Interchange Cost Sharing Policy requires a local share of at least 50 percent for the cost of improvements. The local communities may consider pursuing federal funding to offset the local share of the interchange improvements.
It is anticipated that the proposed improvements will be built within the existing right-of-way with possible proposed right-of-way at the intersections.
The Illinois Tollway owns the right-of-way and has jurisdiction for the Illinois Route 390 Tollway and its ramps. IDOT owns right-of-way for the area between County Farm Road and U.S. Route 20 and on U.S. Route 20. DuPage County owns the right-of-way on County Farm Road and Greenbrook Boulevard.
Environmental impacts are not anticipated for any features other than minimal wetland impacts within the existing right-of-way.
An initial stakeholder meeting was held on September 11, 2018, with the Tollway, IDOT, DuPage County, Cook County, Hanover Park, Bartlett, Elgin, and Hanover Township. The Tollway will be holding ongoing stakeholder meetings throughout the project.
A public meeting for the project will be scheduled in 2019 to present the existing conditions and solicit input on potential solutions. A final public meeting is anticipated in 2020 to present the preferred alternative.