Bridge is a double-deck structure with six lanes for automobile traffic on upper deck; and three lanes for trucks, plus two interurban tracks on lower deck. Ship clearance is 200 to 218 feet above the surface of low water. Length of bridge more than eight miles. total cost $79,000,000. Cable consists of 37 strands containing 472 wires each a total of 17464 wires total length of wire. 70,000 miles Diameter of cable, 28 5/8 inches; weight of cable per foot. 1750 pounds. Total weight of cable wire, 18000 tones.