Mackinac Bridge Authority

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Mackinac Bridge Authority
Mackinac Bridge.jpg
Authority overview
Formed 1950
Jurisdiction Mackinac Bridge
Headquarters St. Ignace, Michigan
Authority executive Chairman, William H. Gnodtke
Parent department Michigan Department of Transportation[1]

The Mackinac Bridge Authority is the state agency of the U.S. state of Michigan that operates the Mackinac Bridge across the Straits of Mackinac.[2]


The Mackinac Bridge Authority was created in 1950 to study the feasibility of constructing a suspension bridge to connect Michigan's Lower Peninsula with its Upper Peninsula. The Authority oversaw bridge construction in 1954–57, and has overseen the operation of the bridge since its opening in 1957.

The Mackinac Bridge Authority has been directed by the state of Michigan to maintain the Mackinac Bridge as a self-supporting facility. The Mackinac Bridge is a toll bridge, with the tolls set at a level determined by the authority and its governing board.

Members of the governing board of the Mackinac Bridge Authority are appointed by the Governor of Michigan.[2]


  1. ^ "Michigan Department of Transportation Organizational Chart". (State of Michigan). February 2014. Retrieved July 10, 2014. 
  2. ^ a b "Welcome to the Mackinac Bridge Website". Mackinac Bridge Authority. Retrieved January 7, 2009.