Front:
Golden Gate Bridge
Zam 1718
Total length, 7 miles, including two
approach roads. Bridge itself,
1-1/5 miles, 6450 feet.
Width 90 feet, center to center of
cables.
Total cost, estimated, $35.000.000.
Longest single span, 4200 feet.
Height of towers, 746 feet above
water.
Deepest pier, 100 feet below water.
Largest pier, San Francisco pier,
90 x 185 feet, total height from
base 144 feet.
Number of piers, two.
Vehicle facilities, automobiles and
trucks.
Steel used, over 100.000 tons.
Cable wire length, 80.000 miles.
Cable wire weight, 22.000 tons.
Size of cables, 361/2 inches diameter,
7660 feet long between an-
chorages.
Number of wires, 27,572 strands,
2/10 inch diameter.
Concrete, 693.000 cubic yards.
Cable supporting capacity, 430.000,-
000 pounds.
Pull at anchorage, 63.000.000 pounds.
Counteracting resistance capacity of
the anchorage blocks, 126.000,-
000 pounds.
Excavation, 511,000 cubic yards.
Man hours, 25,000,000.
Annual auto and truck capacity,
103,295,000.
Travel lanes, six lanes and two side-
walks.
Work started, January 5, 1933.
Completion date, May, 1937.
Back:
اللهی
PLACE 1
Miss Mary Jean Stoddard
312 Ash Avenue
Ames, fowa
