MDOT to Add US 131 Flex Route Lane to Post Road
The Michigan Department of Transportation plans shoulder widening, bridge work and a flex lane on US 131 beginning in spring 2027.
Updated on Oct. 31, 2026 in Employment
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The Michigan Department of Transportation will add a flex route shoulder lane to US 131 from I-96 to Post Road, with work beginning in spring 2027. The project also includes widened shoulders, rehabilitated and widened bridges, emergency pull-off sites and improved incident management on northbound and southbound US 131.
Why it matters
The project is intended to increase safety, reduce crashes and improve traffic flow on the corridor while extending the service life of its bridges. For Michigan drivers on US 131, it signals a sizable upgrade to a major north-south route.
The project's main quantitative context is rush-hour travel that often slows to about 5 mph on US 131, the baseline the flex lane aims to ease. The stated outcomes are projections, and the source does not provide budget totals or a completion timeline.
The players
Michigan Department of Transportation (MDOT)
MDOT is the state agency responsible for planning, building and maintaining Michigan's state highways, including US 131, and is leading this corridor improvement project.
The details
A lane control system with signs, vehicle detectors and electronic message boards will signal when the flex shoulder is open, and the lane is closed during non-peak times. Planned work also covers widening shoulders, rehabilitating and widening bridges, adding emergency pull-off sites and improving incident management.
Timeline
Spring 2027: MDOT begins shoulder widening and bridge work on US 131.
Roadmap
The US 131 plan extends the flex-route lane control approach MDOT uses on Michigan freeways to manage peak-period capacity onto a new corridor. It pairs that tool with bridge rehabilitation and shoulder widening, a combined model for aging infrastructure.
Drivers on US 131 between I-96 and Post Road can expect the flex shoulder lane to open only during peak travel periods, signaled by overhead electronic message boards. Construction on shoulders and bridges starting in spring 2027 may bring lane adjustments along the corridor.
The takeaway
Michigan drivers on US 131 should watch for the flex lane signage once construction begins in spring 2027, since the lane will open only during peak periods. The project's safety and traffic-flow gains are projections that will be measurable only after the work is complete.
Further reading
For broader context on regional economic trends, explore Employment coverage across Michigan.
Source note: This article includes information reported by 97.9 WGRD.
Live Poll
Do you expect your commute to get better once the US 131 project finishes?
