1957day.year
The Mackinac Bridge, the world's longest suspension bridge between anchorages at the time, opens to traffic connecting Michigan's upper and lower peninsulas.
The Mackinac Bridge opens as the world's longest suspension bridge between anchorages, linking Michigan's Upper and Lower peninsulas.
On November 1, 1957, the Mackinac Bridge opened to traffic, spanning the Straits of Mackinac between Michigan's Upper and Lower peninsulas. At nearly five miles in length, it was then the world's longest suspension bridge between anchorages, featuring towering steel pylons rising 552 feet above the water. The structure replaced the ferry system, dramatically reducing travel time and strengthening economic ties between the regions. Its construction employed innovative engineering techniques to withstand harsh weather and shifting ice flows. Today, the bridge remains an iconic symbol of mid-20th century American engineering and a vital transportation route.
1957
Mackinac Bridge