The Mackinac Bridge is the longest suspension bridge in the Western Hemisphere with 7,400 feet of roadway suspended in the air over the Straits of Mackinac. The bridge is the fifth-longest suspension bridge and is considered one of the strongest suspension bridges in the world. In total, the Bridge is just over five miles in length, connecting Michigan's Upper and Lower Peninsulas.
The bridge was designed by David B. Steinman and opened on November 1, 1957. The structure took 48 months to complete with over 3,500 workers at a cost of $99,800,000 dollars.
The main bridge cables are made from 42,000 miles of wire and the towers stand 554 feet above the water and 210 feet below to the bedrock.
Over 200 million cars have crossed the bridge. On average 11,600 vehicles cross the bridge daily, which is over 450 cars an hour.
The bridge was designed by David B. Steinman and opened on November 1, 1957. The structure took 48 months to complete with over 3,500 workers at a cost of $99,800,000 dollars.
The main bridge cables are made from 42,000 miles of wire and the towers stand 554 feet above the water and 210 feet below to the bedrock.
Over 200 million cars have crossed the bridge. On average 11,600 vehicles cross the bridge daily, which is over 450 cars an hour.
Mackinac Bridge