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The Mackinac Bridge (/ ... Construction began on May 7, 1954. The bridge was built under two major contracts. The Merritt-Chapman and Scott Corporation of New York ...
The authority managed the bridge's construction from 1954 until 1957, and has overseen the operation of the bridge since its opening on November 1, 1957. [5] The authority was originally scheduled for dissolution in 1986 after the last of the bonds were to be paid in full.
During the construction of the Mackinac Bridge from 1954 to 1957, the Mackinaw would clear away ice floes piling up against the massive caissons surrounding the bridge piers being constructed. This allowed the foundations of the bridge to settle into place undisturbed during the winter.
The Mackinac Bridge Authority was formed in 1950 to construct a bridge over the Straits of Mackinac, and bonds for the bridge's construction were issued Construction on the Mackinac Bridge began in 1954, promising an even faster and higher-capacity link across the Straits of Mackinac. [5]
A new survey ranks Michigan's Mighty Mac among the nation's top 10 most scenic bridges. The Mackinac Bridge ranked seventh nationwide, falling within the top 10 of a 100-bridge ranking.
Construction started in 1954 and the Mackinac Bridge opened to traffic on November 1, 1957. Final work on the bridge was completed in September 1958. Overall, the structure has a 3,800-foot (1,200 m) central suspension span flanked by two 1,800-foot (550 m) side spans.
More: Mackinac Bridge ranks 7th on list of 100 most scenic bridges in the country There also will be wide-load restrictions in both directions. Motorists should consider crossing at off-peak times ...
The Tacoma Narrows Bridge had a width-to-span ratio of 1 to 72, while the proposed Mackinac design had an even more extreme width-to-span ratio of 1 to 92. [8] It wasn't until Steinman took into account what was learned at Tacoma and brought on Woodruff as a design engineer that the Mackinac Bridge was finally built starting in 1954.