Mackinac Bridge, Shore View, Mackinaw City, Michigan

This image is taken closer to the roadway approach to the bridge, still from the Michigan shore, showing how much of the bridge is truss and how much is suspension.

Curteich Color 3-D Natural Color Reproduction

The description is a collection of fact about the bridge:

MACKINAC BRIDGE

Longest Suspension Bridge, anchorage to anchorage, in the World — connecting Michigan’s two peninsulas — opened to traffic Nov. 1, 1957.

FACTS:

Total Length of Superstructure — 19,205 ft.

Total Length of Suspension Bridge — 8614 ft.

Length of Main Span — 3,800 ft.

Length of Bridge and Approaches — 26,444 ft.

Height of Towers above Water — 552 ft.

Depth of Tower Piers Below Water — 206 ft.

Clearance for Ships at Center — 148 ft.

Width of Roadway – 48 ft.

Main Cables — 2, Diameter — 24 1/2 in.

Estimated Weight of Superstructure — 76,300 tons

Cost — $96,4000.033.33

DESIGNER: DR. D. B STEINMAN

FATHER OF THE BRIDGE: FORMER SEN. P. M. BROWN

–This card dates from the 1950s.

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