Front:
The SAN FRANCISCO BAY BRIDGE from YERBA BUENA IS.
Thia bridge with 1ts 51 piers how under construction is over 8 miles long
Its towers rise 754 ft from rock bottom to sky tip.
are in its giant cables.
labor and 77.600.00 in money.
70.815 miles of wire
To Duild it involved 54.850.000 man hours of
Back:
كل ما
