The Mackinac Bridge

The Mackinac Bridge Mackinaw City Michigan

Stock #: 33076
Type: Postcard
Era: Linen
City: Mackinaw City
State: Michigan (MI)
County: Cheboygan,Emmet
Publisher: Hiawatha Card Co.
Size: 3.5" x 5.5" (9 x 14 cm)

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Additional Details:
The center span of a five-mile bridge being constructed across the Straits of Mackinac, connecting Michigan's two great peninsulas at mackinaw City on the lower, and St. Ignace on the upper. Designed by Dr. D. B. Steinman, this bridge has been engineered to withstand many times the recorded stresses of ice pressure, wind velocity, gravity and so forth. Overall length of bridge is 5 miles, has four lanes for traffic. Center span 3800 feet long between two 565 foot towers, water clearance of 150 feet. Construction started in May 1954, scheduled for opening in 1957.