National Historic Civil Engineering LandmarkDesigned by David B. Steinman, and representing a new level of aerodynamic stability in suspension bridges for its time, the Mackinac Bridge was the first suspension bridge to incorporate specific design features to manage the forces imposed on it by winds, construction of "Mighty Mac" took over three years in a demanding climate, and its completion made all-weather travel between Michigan's two regions possible. The five-mile bridge, including approaches, was the world's longest suspension bridge between cable anchorages (8,614 feet) at the time of its construction.
|Placed By||American Society of Civil Engineers|
|Marker Condition||No reports yet|
|Date Added||Wednesday, July 19th, 2017 at 10:29pm PDT -07:00|
|UTM (WGS84 Datum)||16T E 676487 N 5079553|
|Decimal Degrees||45.84693333, -84.72700000|
|Degrees and Decimal Minutes||N 45° 50.816', W 84° 43.62'|
|Degrees, Minutes and Seconds||45° 50' 48.96" N, 84° 43' 37.2" W|
|Driving Directions||Google Maps|
|Closest Postal Address||At or near 917-927 Boulevard Dr, Saint Ignace MI 49781, US|
|Alternative Maps||Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap|
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