Description
Soaring towers of reddish-orange steel rise against a vibrant blue sky and water, showcasing the Mackinac Straits Bridge under construction. Massive concrete anchorages, ten stories high, secure the bridge’s massive cables. This postcard, from a natural color transparency, depicts the impressive engineering feat of the 1950s.
Front Text (cleaned):
L
Back Text (cleaned):
103T
The Mackinac Straits Bridge spanning the Straits of Mackinac between Mackinaw City and St. Ignace, Michigan. In suspension-type bridges which span the greatest distances, cables are hung over towers and fastened at their ends to concrete anchorages. The steel wire ropes which suspend the floor of the bridge are then hung to these main cables. The giant cement anchorage in the left foreground has an exact duplicate at the north approach to the bridge. It rises ten stories above the water level and covers about a third of a football field.
Copyright 1957, The L. L. Cook Co.
97716A
25
m
PLACE
STAMP
HERE
POST CARD
From a natural color transparency, The L. L. Cook Co., Milwaukee, Wisconsin.
