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 local governmental agencies that regularly require access to state right of way.
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 HBCU TDRP is a unique partnership between MDOT and Michigan colleges and universities to offer on-the-job training to undergraduate students pursuing degrees in engineering or transportation-related careers.
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.
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March 10, 2025
ST. IGNACE, Mich. - Contractors for the Mackinac Bridge Authority (MBA) intend to resume the two-season project to repave portions of the bridge’s north viaduct and approach truss spans March 24, weather depending.
To ensure the work is completed prior to the seasonal rise in traffic volumes on the bridge, the scope of work has been reduced with the goal of reopening all lanes of the bridge before Memorial Day weekend.
"We've worked closely with the contractor to make sure the planned work can be completed prior to Memorial Day to help avoid delays for travelers," said Bridge Director Kim Nowack. "Focusing this season's work on the joint replacement and limited repaving should make that deadline achievable."
From March 24 to April 26, crews will be replacing a modular joint over Pier 34 on the bridge at the start of the north viaduct span, as well as repairing and repaving the southbound lanes of the north viaduct. During this time, the southbound side of the bridge will be closed with one lane open in each direction on the northbound side of the bridge.
From April 28 to May 22, crews will then close the northbound side of the bridge while the other half of the modular joint is replaced. One lane will be open in each direction on the southbound side of the bridge.
Deck repairs and repaving of the remaining sections of the southbound side of the bridge will be scheduled at a later date as a separate project.
Last year, the northbound side of the bridge was repaired and repaved. While scheduled for completion prior to Memorial Day 2024, work and lane closures extended into mid-June.
Weekend traffic peaks between 10 a.m. and 4 p.m. often result in traffic backups, even with all toll lanes open. Drivers should consider crossing at off-peak times or prepare for delays.
Wide-load restrictions will be in place in both directions for any vehicles wider than 10 feet during construction. Wider loads will be allowed to cross once per day at 7 p.m. Monday through Thursday, with traffic stopped for brief periods to accommodate those crossings. Truckers with wide loads must contact the bridge authority 24 hours in advance and arrive at the bridge prior to 7 p.m.
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SAGINAW, Mich. -The Michigan Department of Transportation (MDOT) is investing $5.3 million to upgrade signs and overhead sign structures, guardrails and delineators along portions of I-75 in Saginaw County from the Genesee County line north to the Bay County line and in Bay County from the Saginaw County line north to the M-13 connector.
PORT HURON, Mich. -The Michigan Department of Transportation (MDOT) is investing $2.1 million to improve the Allen Road bridge over I-69 in St. Clair County.
COLOMA, Mich. - The Michigan Department of Transportation (MDOT) and contractor Rieth-Riley Construction Co., Inc., will begin work Monday on a two-year, $31.7 million investment to repave I-94 between Coloma and Watervliet, as well as repair the Hennessey Road bridge over I-94, and repave the Friday Road interchange.
DAVISON, Mich. -The Michigan Department of Transportation (MDOT) will implement intermittent lane and shoulder closures as well as ramp closures on I-475 from Thread Creek to the Flint River in Flint for soil boring work.
LANSING, Mich. - The Michigan Department of Transportation (MDOT) will begin the following intermittent ramp closures and a traffic shift of southbound traffic to the northbound roadway on Thursday.
SAGINAW, Mich. -The Michigan Department of Transportation (MDOT) is investing $2.9 million for preventive maintenance work on the Zilwaukee Bridge in Saginaw County.
LANSING, Mich. - Due to worse conditions than expected with the beam supports, the Michigan Department of Transportation (MDOT) is extending the repair time needed for the US-223 bridge between Division Street and Treat Highway in Lenawee County to mid-June.
ALPENA, Mich. - The Michigan Department of Transportation (MDOT) will invest $1.3 million to make repairs to the I-75 Business Loop (BL) bridge over I-75 west of Roscommon.
LANSING, Mich. ¬- The Michigan Department of Transportation (MDOT) and local agencies are enacting spring weight restrictions, an annual move to protect roads.
