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Projects and studies

An MDOT engineer oversees an I-96 project over the Grand River and Billwood Highway in Eaton County.
Department of Transportation

Projects and studies

Major road and bridge construction projects can last several months or longer, and may involve significant delays. MDOT is responsible for all state-owned roads/highways with an I, M, and US route designation (ex: I-94, M-21, US-23). The list of major region projects is not all inclusive. Check Mi Drive for daily lane closure information.

Know before you go!

Mi Drive is a construction and traffic information website that features real-time traffic and construction information on Michigan's state roads (I, M and US routes).

Keeping Michigan's motorists safe, informed and mobile.

Michigan.gov/Drive

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Major region projects

I-475 and M-21 corridor study in Flint.

Studies

Studies help MDOT determine project need, as well as environmental, cultural, and social impacts. Studying a proposed project/area and giving the public an opportunity to participate in the transportation decision-making process ensures a better outcome for all Michigan residents. Learn about upcoming public meetings and the reports generated by each study.

All MDOT studies

Programs and safety

I-69 Bridge demolition

Rebuilding Michigan

A program focused on the state highways and bridges that are critical to the state's economy and carry the most traffic.

HMA paving in I-69 Lapeer County

Five-Year Transportation Program

A program intended to present planned investments, performance measures, and region projects for the next five years.

Barrel on the US-10 Clare construction project.

Work zone safety

Michigan is serious about the safety of vulnerable workers and motorists, so slow down and give work zones your full attention.

Project news

Traffic signal study at I-75 Business Spur intersections in Sault Ste. Marie begins June 3

May 19, 2025

SAULT STE. MARIE, Mich. - The Michigan Department of Transportation (MDOT) will be evaluating traffic signals at two intersections this summer in the city of Sault Ste. Marie, C...

I-75 resurfacing in Mackinac County begins May 27

May 19, 2025

NEWBERRY, Mich. - The Michigan Department of Transportation (MDOT) is investing about $3 million to resurface about 7 miles of I-75 from M-123 to M-134 in Mackinac County.

I-69 Turkeyville Rest Area closing Monday for septic work

May 16, 2025

MARSHALL, Mich. - The Michigan Department of Transportation (MDOT) and contractor Hoffman Brothers will begin work Monday on a $1.6 million investment to rebuild the septic lago...

Weather delays Mackinac Bridge joint replacement completion

May 15, 2025

ST. IGNACE, Mich. - Cold, rainy weather early in the season has delayed completion of this year's work to repave portions of the Mackinac Bridge and replace a modular joint, whi...

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