S16: Building a Bridge in the Ocean
Video duration: 0:57
The south tower of the Golden Gate Bridge was built over a thousand feet into open ocean. To build the tower, workers would have to erect a pier more than 1100 feet out in the middle of the Gate -- the first bridge support ever constructed in the open ocean. Divers guided beams, panels, blasting tubes and 40-ton steel forms into position and secured them, striving to avoid being swept away.