Monday, 16 March 2015

Mackinac Bridge - History Documentary Films

The Mackinac Bridge is a suspension bridge reaching the Straits of Mackinac to link the Upper and Lower peninsula of the U.S. state of Michigan. Opened in 1957, the 8,614-foot (2,626 m) bridge (familiarly known as "Big Mac" and "Mighty Mac") is the world's 16th-longest in complete suspension and the longest suspension bridge between anchorages in the Western hemisphere. The Mackinac Bridge lugs Interstate 75 and the Lakes Michigan and Huron parts of the Great Lakes Circle Tours across the straits and attaches the city of St. Ignace on the north end with the village of Mackinaw City on the south.

Imagined since the 1880s, the bridge was made by the engineer David B. Steinman and finished in 1957 only after several decades of battles to begin building.

The bridge opened up on November 1, 1957, hooking up two peninsulas linked for decades by ferryboats. A year later, the bridge was officially committed as the "world's longest suspension bridge between anchorages", allowing a superlative comparison to the Golden Gate Bridge, which had a longer center span between towers, and the San Francisco-- Oakland Bay Bridge, which had an anchorage between.

It remains the longest suspension bridge with two towers between anchorages in the Western Hemisphere. [3] A lot longer anchorage-to-anchorage periods have been constructed in the Eastern Hemisphere, including the Akashi Kaikyo Bridge in Japan (12,826 feet or 3,909 m). But the long leadups to the anchorages on the Mackinac make its overall shoreline-to-shoreline length of 5 miles (8 km) longer than the Akashi-Kaikyo (2.4 mi or 3.9 km).

This is thought to refer to the form of what is now called Mackinac Island. Investing blog posts at the Straits of Mackinac enticed peak populations during the summer season trading season; they additionally created as inter-tribal meeting places.

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