Mackinac Bridge Authority

Spanning the Straits of Mackinac since 1957

What is the height of the roadway above the water?

Posted on October 14th, 2016

The height of the roadway at mid-span is approximately 200 feet above water level. The vertical clearance at normal temperature is 155 feet at the center of the main suspension span and 135 feet at the boundaries of the 3,000 ft. navigation channel.

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