Front:
MACKINAC BRIDGE
Back:
23-9
in
or i
MACKINAC BRIDGE
Longest Suspension Bridge, anchorage to anchor-
age, 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 8,614 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
241/2 in.
Estimated Weight of Superstructure 76,300 tons
Cost
$96,400,033.33
DESIGNER: DR. D. B. STEINMAN
FATHER OF THE BRIDGE: FORMER SEN. P. M. BROWN
South Whitley,
klear mabil to Edson
are nu hrs. E.C. Zandree
We stayed at Petorky mich
Went over
bridge
Indira
our destination in wisconsina
6:30 this l Have traveled
816 miles. This is a lovely R.R.I
place. Lots of Love, Ene & Rub.
last night's what arrived of
