The main materials used to make the Golden Gate Bridge were 75,293,000 kg of steel; two main cables, each made of 27,572 strands of wire; 600,000 rivets in each of the towers; and concrete.
The steel was made in New Jersey, Maryland and Pennsylvania and shipped through the Panama Canal.
pengl: The main materials used to make the Golden Gate Bridge were 75,293,000 kg of steel; two main cables, each made of 27,572 strands of wire; 600,000 rive ...