About MDOT

  • The Michigan Department of Transportation (MDOT) is responsible for Michigan's 9,669-mile state highway system, comprised of all M, I, and US routes. MDOT also administers other state and federal transportation programs for aviation, intercity passenger services, rail freight, local public transit services, the Transportation Economic Development Fund (TEDF), and others.

    General Inquiries
    517-373-2090

    Contact MDOT by e-mail
    State of Michigan Employee Lookup

    Mailing Address
    Michigan Department of Transportation
    State Transportation Building
    425 W. Ottawa St.
    P.O. Box 30050
    Lansing, MI 48909