The first phase of construction is scheduled to begin Friday night (May 5) at 9 p.m. through midday Saturday (May 6), weather permitting. Crews will shift the alignment of the eastbound to northbound left-turn radius and shorten the northbound to westbound left-turn lane to accommodate space for partial removal of the concrete median curb.
Some lane restrictions will be needed Friday night into Saturday morning to modify pavement markings. All lanes and turn motions will remain open during this phase of construction. This phase is scheduled to last approximately two weeks, weather depending.
Future phases of construction will temporarily shift traffic lanes and restrict one lane on the eastbound I-465 Exit 27 ramp to Michigan Road as the ramp is widened for an additional lane.
Specific schedule updates and traffic restrictions will be announced in advance of each phase of the project. Construction is anticipated to be complete by November.
About the project
The project seeks to increase capacity and improve traffic flow at the interchange by:
- Lengthening the existing northbound Michigan Rd. right-turn lane to eastbound I-465,
- Adding a second left-turn lane on southbound U.S. 421 to eastbound I-465,
- Adding a third left-turn lane on the eastbound I-465 exit ramp to northbound U.S. 421
All interchange ramps are planned to remain open during the project. Some lanes at the interchange will be temporarily narrowed and shifted to maintain traffic and provide space for construction.