Mackinac Bridge, Michigan

Mackinac Bridge, Michigan (HM1ZSE)

Location: Saint Ignace, MI 49781 Mackinac County
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Country: United States of America
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N 45° 50.816', W 84° 43.62'

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Inscription

National Historic Civil Engineering Landmark

Designed 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.

Opened to Traffic: November 1, 1957
Details
HM NumberHM1ZSE
Tags
Year Placed2010
Placed ByAmerican Society of Civil Engineers
Marker ConditionNo reports yet
Date Added Wednesday, July 19th, 2017 at 10:29pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)16T E 676487 N 5079553
Decimal Degrees45.84693333, -84.72700000
Degrees and Decimal MinutesN 45° 50.816', W 84° 43.62'
Degrees, Minutes and Seconds45° 50' 48.96" N, 84° 43' 37.2" W
Driving DirectionsGoogle Maps
Area Code(s)906
Closest Postal AddressAt 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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