Mackinac Bridge is located between the towns of St. Ignace and Mackinaw City in the state of Michigan in the United States. It was long planned a bridge over the Straits of Mackinac, It was not until 1954 construction of the bridge started, the bridge opened to traffic in 1957. It replaced the ferry connection between the towns. Mackinac Bridge was designed by engineer David B. Steinman who designed several bridges.
Mackinac Bridge is 8038 meters long and the main span is 1,158 meters
Mackinac Bridge Walk is held every year on the day off Labor Day, eastbound lane is closed and you can walk across the bridge this has been done since 1958. Normally it is between 40,000 to 65,000 people attending.