Anniversary of the Mighty Mac

The Mackinac Bridge is Michigan’s most iconic landmark, and on June 25 we will celebrate the 58th anniversary of its dedication.

The Mighty Mac holds a special place in the hearts of Michiganders as the literal and symbolic connection between our state’s wonderful peninsulas. The bridge began construction in 1954 and opened on Nov. 1, 1957 — although it was not formally dedicated until the next summer.

The Mackinac Bridge Dedication Festival was held over four days in Mackinaw City and St. Ignace, with surrounding communities also celebrating the dedication of the Western Hemisphere’s longest suspension bridge between anchorages. In addition to a large parade, other events marked the dedication — including fireworks displays, a formal ribbon-cutting ceremony and even the release of a special U.S. postage stamp.

The Mackinac Bridge took decades from its inception to completion, but it has become a defining monument to both human innovation and to Michigan’s landscape.

What started as an idea now welcomes about 11,600 residents, tourists and industries each day to cross the Straits of Mackinac.