<P> The Mackinac Bridge ( / ˈmækɪnɔː / MAK - in - aw ) is a suspension bridge spanning the Straits of Mackinac to connect the Upper and Lower Peninsulas of the U.S. state of Michigan . Opened in 1957 , the 26,372 - foot ( 4.995 mi ; 8.038 km ) bridge ( familiarly known as `` Big Mac '' and `` Mighty Mac '' ) is the world 's 19th - longest main span and the longest suspension bridge between anchorages in the Western Hemisphere . The Mackinac Bridge is part of Interstate 75 and the Lakes Michigan and Huron components of the Great Lakes Circle Tours across the straits ; it is also a segment of the U.S. North Country National Scenic Trail . The bridge connects the city of St. Ignace on the north end with the village of Mackinaw City on the south . </P>
<P> The Mackinac Bridge ( / ˈmækɪnɔː / MAK - in - aw ) is a suspension bridge spanning the Straits of Mackinac to connect the Upper and Lower Peninsulas of the U.S. state of Michigan . Opened in 1957 , the 26,372 - foot ( 4.995 mi ; 8.038 km ) bridge ( familiarly known as `` Big Mac '' and `` Mighty Mac '' ) is the world 's 19th - longest main span and the longest suspension bridge between anchorages in the Western Hemisphere . The Mackinac Bridge is part of Interstate 75 and the Lakes Michigan and Huron components of the Great Lakes Circle Tours across the straits ; it is also a segment of the U.S. North Country National Scenic Trail . The bridge connects the city of St. Ignace on the north end with the village of Mackinaw City on the south . </P>
what kind of bridge is the mackinac bridge
what kind of bridge is the mackinac bridge
suspension bridge
suspension bridge