Mackinac Bridge Authority

Spanning the Straits of Mackinac since 1957

Mackinac Bridge Authority to conduct rescue training April 19

Posted on April 18th, 2017
   In preparation for the bridge’s north tower painting project, the Mackinac Bridge Authority (MBA) will conduct confined-space rescue training with local emergency services agencies on Wednesday, April 19.    From 6-9 p.m., MBA staff will work with local fire departments, emergency… Read More

Why we close the bridge for falling ice

Posted on April 12th, 2017
  Each winter, ice forms on the cables and towers of the Mackinac Bridge, usually from freezing rain. When winds increase or temperatures rise, that ice can dislodge suddenly, sending sheets or spears of ice cascading down to the bridge deck below. “Ice falling from the bridge towers and cables can fall more t… Read More

Mackinac Bridge north tower to get a new paint job

Posted on March 30th, 2017
           For the first time in its 60-year history, one of the Mackinac Bridge’s iconic ivory towers will be stripped down to bare metal and repainted.
           Beginning April 6, con… Read More

Autumn seasonal maintenance on the Mighty Mac

Posted on November 22nd, 2016
               Mackinac Bridge Authority (MBA) maintenance supervisor Ned McLennan has several jackets in his office – a black canvas coat and a safety yellow jacket among them – but all of them are streaked with ivory and green… Read More

September Traffic Report

Posted on October 20th, 2016
Robert J. Sweeney, Executive Secretary of the MBA, reported today that 464,394 vehicles crossed the Mackinac Bridge during the month of September compared to 442,402 in 2015. For the month of September, traffic is up 5.0% and fare revenue is up 4.5% compared to last year. The Mackinac Bridge Authority has scheduled… Read More

Rescued bald eagle to launch his reintroduction from the Mackinac Bridge

Posted on September 26th, 2016
First he was simply called “The Manistee Eagle,” indicating the county where he was rescued. Now he’s dubbed “Mighty Mac” in honor of the location where he’ll be released back into the wild on Tuesday, Oct. 4. The Mackinac Bridge Authority (MBA) is assisting in the release of… Read More

Mighty Mac chosen as platform for innovative technology

Posted on September 12th, 2016
Some engineering professors had an idea to monitor bridges with sensors powered with the vibrations generated by traffic. Think self-winding watch. Those professors, including one at Michigan State University, think they have mastered the technology. But they needed a real-world platform to try it out. Enter B… Read More
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Mackinac Bridge Authority
N 415 I-75 St Ignace, MI 49781 (906) 643-7600
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