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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Rumble and mumble strips are a low-cost measure used to address one of the most serious types of traffic crashes: a lane departure crash. They consist of a set of either transverse or sinusoidal grooves applied on the shoulder or centerline of a roadway.
Rumble and mumble strips provide a tactile and audible warning to alert inattentive (distracted, drowsy, unfocused, etc.) drivers who may unintentionally drift out of their lane. This warning gives the driver an opportunity to correct their action or reduce speed, which may help them avoid or reduce the severity of a crash.
Shoulder rumble strips have been in use all over the country for many years and their safety benefits are well-documented. They are located just outside the driving lane on both freeway and non-freeway routes.
Over the years Michigan has been leading the way for centerline rumble strips. Between 2008 and 2010, MDOT undertook the largest initiative of its kind to install 5,400 miles of centerline rumble strips (and an additional 1,700 miles of shoulder rumble strips) on high-speed rural highways across the state. This system-wide installation provided a unique opportunity to evaluate the effectiveness of non-freeway rumble strips, which was done through a two-phase research project.
A before-and-after crash study performed for the 2008-2010 installation locations found significant reductions across all crash severities and lane departure crash types, including:
Rumble strips have become a safety standard and will continue to save lives on Michigan's roads.
MDOT has been searching for a way to address the roadside noise generated by rumble strips in residential areas without losing the safety benefits. At the end of 2018, MDOT installed its first trial of a new sinusoidal rumble strip design, commonly referred to as a mumble strip, in the Superior Region.
Mumble strips generate less exterior noise. They consist of a continuous sinewave pattern milled, slightly recessed into the pavement. Despite producing less noise at the roadside, the mumble strips still alert inattentive drivers through noise and vibration to keep them in their lane.
Mumble strips were made the standard for non-freeway shoulder installations in late fall 2021, and are propagating across the state as non-freeway routes with adequate shoulder width get resurfaced. Options for use include centerline, edgeline and freeway shoulder installations but the largest benefit during testing was observed for shoulder installations.
