Our goal is to keep Michigan's motorists safe, informed, and mobile. That is why MDOT offers many ways to help ease the stress of commuting by providing information that commuters want and need as they make daily travel decisions.
Did you know that millions of people visit the Great Lakes State every year? Whether you are from out of state or right here in Michigan, we want to ensure your travel throughout Michigan is informative, comfortable, and fun.
At MDOT, safety is paramount. It is our goal to improve overall safety for all road users, internal staff, contractors performing work on roads, and emergency responders.
Every year, MDOT produces an updated version of the state transportation map. The department also produces numerous geographic information system maps to assist commuters, tourists, and businesses.
In Michigan, there are three publicly-owned and operated bridges: Mackinac Bridge, Blue Water Bridge, and International Bridge. There are also two privately-owned and operated border crossings: Ambassador Bridge and Detroit-Windsor Tunnel.
A vibrant and sustainable multimodal transportation system is vital to Michigan's future economic viability and competitiveness. From aviation to public transportation, rail, freight, and marine, MDOT is involved in all modes of transportation.
MDOT's Office of Business Development (OBD) manages external civil rights programs, such as the Disadvantaged Business Enterprise (DBE) Program, the On-the-Job Training Program, and the Small Business Program, and ensures compliance with Title VI of the Civil Rights Act of 1964, equal opportunity requirements for contractors, and the Americans with Disabilities Act of 1990.
MDOT is committed to ensuring that projects, programs and services are performed without discrimination, under Title VI.
Contractors and vendors who work on federally assisted projects are required to establish and carry out policies to assure that applicants are employed and that employees are treated during employment without regard to their race, religion, sex, sexual orientation, gender identity, color, national origin, age, or disability.
The Bureau of Bridges and Structures is responsible for statewide policy, procedure development, and execution to ensure all bridges and structures are designed, constructed, maintained, and operated to ensure safety.
MDOT provides funding for competitive grant and loan programs primarily, but not exclusively, for state and local road agencies for the greatest impact on economic development and job creation.
MDOT's Highway Programs focus on the development and management of the department's roadsides, environmental efforts and policies, and federal-aid highway information.
The Bureau of Transportation Planning develops and implements a comprehensive transportation planning process which results in investments that are consistent with the policies of the State Transportation Commission.
Research Administration supports and promotes innovative research that encourages safe, sustainable and cost-effective transportation solutions throughout Michigan.
MDOT provides technologies and partnerships in order to make the transportation system safer and less congested.
MDOT has ongoing government-to-government communication with 12 federally recognized sovereign tribal governments whose lands are situated within Michigan.
The Office of Communications works with the media to inform the public of MDOT's mission, policies and practices in a positive, consistent and credible manner. The office is responsible for media relations, social media, and website development.
Public participation is integral to efficient, effective and responsive transportation decisions. At MDOT, we want to ensure your voice is not only heard, but makes a difference in moving Michigan forward.
Transportation Reality Check takes on transportation myths and misconceptions, and explains why MDOT does things the way they do.
Resources for the development of quality transportation project documents and services.
Resources for specialized engineering and technical support for construction staff.
Resources for prequalification, bid letting, contract awards, and payments.
Resources for consultant advisories, prequalification information, contracts, and proposals.
Resources for grant and economic development opportunities and project coordination.
Resources for MDOT real estate standards, policies and procedures, and training.
Resources for general work zone mobility guidelines for engineering and technical staff.
Resources for rules, guidelines, restrictions, and permits to safely transport goods.
Open data refers to data that has been officially classified as public that can be made freely available for everyone to use without credentials or restrictions. MDOT promotes transparency, innovation and informed decision-making by providing datasets classified as public freely available to everyone.
MDOT's goal is to support the implementation and use of GIS software and hardware through innovative solutions that solve spatial problems and support more informed decisions about Michigan's transportation infrastructure.
The technical training (TT) course schedule lists the various technical training courses offered through the Office of Organizational Development during the construction off-season months for the local agencies and consultants.
The Internship Program offers undergraduate and graduate students interested in civil engineering and construction management careers, valuable experience by working with professional field staff.
TRAC engages high school and middle school students in solving real-world problems, such as designing bridges or analyzing the environmental effects of building a highway.
The MDOT Transportation Career Pathways Program is committed to helping you build a fulfilling and rewarding career in the transportation industry, even if you're not entirely sure where to start.
MDOT's Engineer Development Program (EDP) is a rotational program that provides new engineers experience in multiple work areas while being assigned a senior-level mentor.
The Veteran Internship Program assists honorably discharged veterans of the United States Armed Forces as they transition into the civilian workforce.
Engineering Week videos and lesson plans are all-inclusive resources to show early elementary to high school students the career of civil engineering at MDOT.
At MDOT, we are here to help. If you can't find what you are looking for in our popular topics, frequently asked questions or website search, give us a call at 517-241-2400 or fill out our contact form.
MDOT's seven region offices each handle transportation-related construction, maintenance and programs within the region's geographic boundaries.
The Office of Policy and Government Relations represents MDOT's interests as new or amendatory legislation is developed or moving through the legislative process.
Commissions and councils provide a public forum for policy development and implementation.
Policies help the department implement its mission of serving and connecting people, communities, and the economy through transportation.
Allows MDOT's regions and engineers to expand their knowledge on how Michigan freeways are operating over time and how they compare to each other.
MDOT and the American Council of Engineering Companies of Michigan (ACEC/MI) have entered into a Partnership Charter Agreement to continue to develop an enhanced business partnership based on mutual trust, collaborative teamwork, effective communication, continuous product and process improvement, and timely resolution/avoidance of problems.
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December 11, 2025
SAGINAW, Mich. -The Michigan Department of Transportation (MDOT) will close three lanes of I-75 in each direction at US-10 in Bay County for sign work. Drivers can also expect intermittent rolling closures during this time.
This work is part of a $5.3 million investment to upgrade signs and overhead sign structures, guardrails and delineators along I-75 from the Genesee County line north to the Bay County line and from the southern Saginaw County line north to the M-13 connector.
County:
Bay
Highway:
I-75
Closest community:
Bay City
Start date:
8 p.m.
Thursday, Dec. 11, 2025
Estimated end date:
6 a.m.
Saturday, Dec. 13, 2025
Traffic restrictions:
Lane closures and intermittent rolling closures will be in place from 8 p.m. to 6 a.m. on northbound I-75 at US-10 on Thursday, Dec. 11 and on
southbound I-75 on Friday, Dec. 12.
Jobs numbers:
Based on economic modeling, this investment is expected to directly and indirectly support 51 jobs.
Safety benefit:
This work will include improving signs and other features like guardrails and delineators to increase roadway safety. Lane and shoulder closures during this type of work are necessary to provide the safest work area possible for crews and motorists.
Media Contact:
DAVISON, Mich. -The Michigan Department of Transportation (MDOT) will implement intermittent lane closures on eastbound I-69 at the State Road overpass in Shiawassee County to perform repairs following a high-load strike.
SAGINAW, Mich. -The Michigan Department of Transportation (MDOT) will continue sign truss work on I-75 in each direction at US-10 in Bay County.
LANSING, Mich. - The Michigan Department of Transportation (MDOT) will close multiple ramps and lanes of US-127 for traffic control removal on the US-127 reconstruction project, including all lanes of southbound US-127 from M-43 to Trowbridge Road, Friday Dec. 12, in Lansing.
GRAND RAPIDS, Mich. - The Michigan Department of Transportation (MDOT), in coordination with the City of Grand Rapids and local partners, recently completed a Planning and Environmental Linkages (PEL) study on US-131 between M-11 (28th Street) and Cherry Street in Wyoming and Grand Rapids.
LANSING, Mich. - Today, the Intelligent Transportation Society of America (ITS America) announced State Transportation Director Bradley C. Wieferich has been appointed to the ITS America Board of Directors effective January 2026, a testament to Director Wieferich’s commitment to safety and innovation in transportation and infrastructure.
LANSING, Mich. - The Michigan Department of Transportation (MDOT) will close westbound I-94 at Airport Road in Jackson on Thursday night and Friday morning to complete bridge repairs.
GREENVILLE, Mich. - The Michigan Department of Transportation (MDOT) is hosting a public meeting next week regarding the planned 2027 resurfacing of M-91 from the Flat River to Peck Road.
TRENTON, Mich. - The Michigan Department of Transportation is hosting a public meeting to discuss the engineering study and environmental review of the Canadian National (CN)/Grand Trunk Western (GTW) railroad crossing at M-85 (Fort Street), north of Van Horn Road, in Trenton.
LANSING, Mich. - The Michigan Department of Transportation (MDOT) will close multiple ramps and lanes of US-127 for lane striping to reopen the northbound US-127 ramp to westbound I-496 starting Friday, Dec. 5, in Lansing.
