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 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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Public Act 51 of 1951 (Act 51) mandates how transportation funds are distributed and spent between MDOT and local entities. The intent of Act 51 is to distribute approximately 25 percent of federal aid to local jurisdictions for use on federal-aid eligible roads, with MDOT remaining responsible for ensuring federal regulations are followed and funds are managed appropriately. MDOT complies with this provision in an oversight role at various points throughout a project, while local agencies are responsible for planning scoping, and design, as well as testing and construction engineering services. Local agencies ultimately deliver more than 500 federal-aid projects annually with an average project cost of $500,000.
The table displays the investment strategy for FY 2025-2029 for the Highway Capital Program at $10.6 billion. This total reflects investments for pre-building activity (i.e., scoping, design, environmental clearance, and Right of Way (ROW) acquisition) and building activities.
Trunkline Highway Capital Program (in millions) |
FY 2025 |
Five-year total |
Annual average |
| Repair and rebuild roads* | $1,682.70 | $4,660.0 |
$932.0 |
| Repair and rebuild roads** | $363.4 | $1,996.5 | $399.3 |
| Safety and system operations | $188.8 | $864.1 | $172.8 |
| Additional state and federally funded programs | $91.4 | $513.2 | $102.6 |
| Routine maintenance | $496.7 | $2,608.1 | $521.6 |
| Total | $2,823.0 | $10,641.9 | $2,128.3 |
This figure illustrates Highway Program investments over the total five-year period, with system preservation, outlined in red, being funded by both the regular highway program as well as the addition of Rebuilding Michigan bond funds up through 2025. Routine maintenance is also expected to increase year by year.
This level of investment will provide Michigan travelers with approximately 537 miles of improved roads per year over the next five years, replacing and improving of 219 lane miles per year, extending the life of approximately 251 miles of pavement each year through the capital preventive maintenance (CPM) program and 293 miles per year with non-freeway resurfacing. MDOT also will manage its bridge assets with repairs to 101 bridges per year.
MDOT allocates pavement preservation funding by formula to its seven regions between the Road Improvements and Rebuilding, Non-Freeway Resurfacing, and Freeway Resurfacing programs. The formula is updated annually with current pavement condition, average daily traffic, regional costs, and eligible lane miles.
For the Bridge program, funding is distributed to MDOT regions through a bridge preservation allocation formula that uses the deck area of bridges in each National Bridge Inventory (NBI) condition. Funding is split into investment targets for replacement, repair, and preventive maintenance work.
