The article provides a brief overview of Michigan's mighty Mackinac Bridge, a suspension bridge connecting Michigan's lower and upper peninsulas, completed in 1957. A review of the relationships between the design of the floor system and the required corrosion protection, are presented, along with some background on the main cable system and its condition. The type of paint system originally placed on the bridge, maintenance painting, life of coating, and new paint systems introduced and proposed more recently, are covered as well.

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