Mackinac Bridge Authority

Spanning the Straits of Mackinac since 1957

  • Welcome to the Mackinac Bridge Website!

    Mission Statement: The Mackinac Bridge Authority is committed to preserve and maintain the State of Michigan’s single largest asset and one of the world’s leading suspension bridges to provide safe, pleasurable and expedient passage over the Straits of Mackinac for economic benefit and improved quality of life.

    News & Events

    Steel deck grating being auctioned by Mackinac Bridge

    Visit for more information on Steel Deck Grating and to place your bid. 

    Text alerts now available for Mackinac Bridge closures

    With the assistance of Mackinac County 911/Emergency Management, you can sign up now 


    2018 Annual Bridge Walk will start in both St. Ignace and Mackinaw City for safety, convenience

    Focused on maintaining safety and maximizing participation, the Mackinac Bridge Authority (MBA) 


    MacPass Online Access

    Do you have an existing account and want online access?  Email to find out how.

    January Traffic Report

    Robert J. Sweeney, Executive Secretary of the MBA, 


    Mackinac Bridge Authority celebrates 60th anniversary with set of commemorative posters

    3In honor of the upcoming 60th anniversary of the Mackinac Bridge linking Michigan’s upper and lower peninsulas,