Detroit

MDOT Extends Overnight Lane Closures on I-75 in Bay County for Signage and Safety Upgrades

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Published on December 12, 2025
MDOT Extends Overnight Lane Closures on I-75 in Bay County for Signage and Safety UpgradesSource: Unsplash/ Jon Tyson

For those of you traveling through Bay County, expect to see the orange barrels and flashing arrows guiding you through lane closures on I-75 as the Michigan Department of Transportation (MDOT) extends its sign truss work. According to details released by MDOT, northbound lane closures and the occasional rolling blockades will persist from 8 p.m. today until the early morning tomorrow at 6 a.m., a sequence following similar interruptions taking place on Thursday night.

And it's not over yet — after a brief weekend respite, MDOT plans to tackle the southbound lanes starting 8 p.m. Monday, December 15 and wrapping up by 6 a.m. the following morning, the effort is part of a larger $5.3 million project that aims to enhance not just signage but also safety features such as guardrails and delineators along this stretch of I-75. This project stretches from the Genesee County line to the Bay County line and also from the southern Saginaw County line north to the M-13 connector, according to a press release from MDOT.

These upgrades are more than just an inconvenience; they represent an investment that MDOT believes will bolster safety on one of the state's major highways. Lane and shoulder closures are justified as necessary precautions — ensuring both worker and motorist safety during these extensive upgrades.

And while the headache of rerouting and lane maneuvering might seem an endless loop of brake lights, this construction isn’t without its economic upside. The aforementioned MDOT release states an expectation for the project to directly and indirectly support a total of 51 jobs, a statistical sweetener aimed perhaps at dulling the edge of commuter frustration.

Detroit-Transportation & Infrastructure