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About Us

A red MDOT work truck with the department logo on the door.
Department of Transportation

About Us

The Michigan Department of Transportation (MDOT) is responsible for Michigan’s nearly 10,000-mile state highway system, comprised of all M, I, and US-routes. It is the backbone of Michigan’s 120,000-mile highway, road and street network.

The state owns over 4,700 highway, railroad and pedestrian bridges, 665 miles of railroad track, roughly 2,700 miles of nonmotorized trails, and four airports. Additionally, MDOT administers state and federal transportation programs for aviation, intercity passenger services, rail freight, and local public transit services.

MDOT is committed to:

  • Serving residents and local communities with the highest level customer service.
  • Improving transportation for all modes.
  • Implementing new safety strategies to protect public health and environment.  
  • Seeking new ways to operate equitably, inclusively, and efficiently.
  • Creating a transportation system that is safe, integrated, and resilient

Connect with us

Michigan Department of Transportation
425 W. Ottawa St.
P.O. Box 30050
Lansing, MI 48933
Locate Us


Contact MDOT
MDOT Organization (PA 370)
State of Michigan Employee Directory

About MDOT

Official Guide to MDOT
MDOT Fast Facts
Road Terms & Definitions

Mission: Providing the highest quality integrated transportation services for economic benefit and improved quality of life.

Vision: MDOT will be recognized as a progressive and innovative agency with an exceptional workforce that inspires public confidence.

Values: Quality - Teamwork - Customer Orientation - Integrity - Pride

MDOT Strategic Plan

MDOT Regions

MDOT's seven region offices each handle transportation-related construction, maintenance and programs within the region's geographic boundaries. Each MDOT region has several Transportation Service Centers (TSCs) that are designed to respond to the transportation needs of local communities.

Governmental Affairs

The Office of Governmental Affairs represents MDOT's interests as new or amendatory legislation is developed or moving through the legislative process. The office also works directly with legislators' offices regarding state and local transportation constituent concerns. </span>

Commissions, Councils, Task Forces, and Partnerships

MDOT's commissions, councils, task forces, and partnerships are responsible for establishing policies, supervising programs, overseeing state and federal funds, providing recommendations and advisement, and acting as a resource.  

Transportation System Performance

Transportation System Performance 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.  This information helps the department identify congested areas, when congestion occurs and how often, cause of delay, and more.