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.
The STEM Outreach Program 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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March 05, 2026
LANSING, Mich. - The Michigan Department of Transportation (MDOT) continues to adjust spring weight restriction areas in an annual move to protect roads.
Effective 6 a.m. Monday, March 9, weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to and including the route beginning on M-43 in the city of South Haven, then east on M-43 to US-131 in Kalamazoo County, continuing south on US-131 to I-94 in Kalamazoo County, east on I-94 to US-23 in Washtenaw County, north on US-23 to I-96 in Livingston County, west on I-96 to M-59 in Livingston County, then east on M-59, ending at the I-94 interchange in Macomb County.
North of this route, restrictions will be imposed and enforced on all state trunkline highways, including the entire Upper Peninsula and Mackinac Island. State routes typically carry M, I, or US designations.
In the restricted areas, the following will apply:
Drivers must follow the speed limits for weight restricted roads, per state law. Go online for speed restrictions for trucks and the rules for propane fuel delivery and public utility vehicles.
When roads that have been frozen all winter begin to thaw from the surface downward, melting snow and ice saturate the softened ground. During the spring thaw, the roadbed softened by trapped moisture beneath the pavement makes it more susceptible to damage. This contributes to pothole problems already occurring due to this winter's numerous freeze-thaw cycles.
MDOT determines when weight restrictions begin each spring by measuring frost depths along state highways, observing road conditions and monitoring weather forecasts. Weight restrictions remain in effect until the frost line is deep enough to allow moisture to escape and the roadbeds regain stability.
County road commissions and city public works departments put in place their own seasonal weight restrictions, which usually but not always coincide with state highway weight restrictions. Signs are generally posted to indicate which routes have weight restrictions in effect.
For weight restriction information and updates, call 800-787-8960 or you can access this information on MDOT's website at www.Michigan.gov/Truckers under "Restrictions." All-season routes are designated in green and gold on the MDOT Truck Operators Map. You also may sign up to receive email alerts.
Trucking companies located in New Jersey and Canada can obtain information by calling 517-373-6256.
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EVART, Mich. - The Michigan Department of Transportation (MDOT) is hosting a public meeting next week regarding this year’s project to rebuild US-10 in the city of Evart from N. Industrial Park Drive to the Muskegon River.
GAYLORD, Mich. - Staff from the Michigan Department of Transportation (MDOT) Gaylord Transportation Service Center (TSC) will present and discuss plans for improvements to traffic flow and pedestrian safety in downtown Charlevoix at an open house meeting.
MARSHALL, Mich. - The Michigan Department of Transportation (MDOT) is demolishing the M-96 (Michigan Avenue) bridge over I-94 this weekend as part of the Marshall Modernization Project.
MT. PLEASANT, Mich. -The Michigan Department of Transportation (MDOT) invites the public to attend an open house to learn more about the upcoming $27 million investment to improve M-20 and US-10 Business Route (BR) in the city of Midland.
BATTLE CREEK, Mich. - The Michigan Department of Transportation (MDOT) and contractor C. A. Hull will be closing the M-89 (Washington Avenue) bridge over the Battle Creek River for rebuilding.
MARSHALL, Mich. - The Michigan Department of Transportation (MDOT) is closing the M-96 (Michigan Avenue) bridge over I-94 on Monday to rebuild the bridge as part of the Marshall Modernization Project.
ST. IGNACE, Mich. - Despite recent closures for falling ice, some ice remains on the upper cables and towers of the Mackinac Bridge, leading to the possibility of closing the bridge to traffic due to falling ice over the coming days.
LANSING, Mich. - The Michigan Department of Transportation (MDOT) has issued a permit to the City of Lansing for utility work on westbound I-69 Business Loop (BL) (Oakland Avenue) between Cedar Street and Walnut Street in Lansing starting March 2.
CALEDONIA, Mich. - In partnership with Caledonia Township and the Kent County Road Commission, the Michigan Department of Transportation (MDOT) is rebuilding 3 miles of M-37 (Broadmoor Avenue) in Caledonia Township and the village of Caledonia.
