Mackinac Bridge Named Historic Civil Engineering Landmark
Mackinac Bridge Named Historic Civil Engineering Landmark https://www.southlandholdings.com/wp-content/themes/corpus/images/empty/thumbnail.jpg 150 150 Southland Holdings https://www.southlandholdings.com/wp-content/themes/corpus/images/empty/thumbnail.jpg(see below for video links) The Mackinac Bridge was designated a National Historic Civil Engineering Landmark on August 12, 2010, by the American Society of Civil Engineers to recognize and…
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