FURMANFILMS :11.5 Steel in cantilever section and pan of East Bay hills You can almost hear the real estate developers in the east bay licking their chops with completion of each phase. :06 Cantilever - normal support Cantilever spans are normally supported by temporary piers underneath. :40 Cantilever section errection But here, just east of Yerba Buena, the channel was too deep and wide. One end of this 1400 foot clear span was supported by the largest bridge support pier ever built, 195 feet deep. Giant eyebars were used to take the pull of the weight and load. The cantilevers had to be assembled without any support from below. Each beam is supported by others, until it , in turn, becomes a supporting member. (PAUSE 4 SECONDS) Hard hats were a good thing to have in places like this, even if you didn't have a safety belt. (PAUSE 3 SECONDS) It also helped it you had a good sense of balance. I wonder if they did much drinking at night? (PAUSE) More than 2,000,000 rivits were used throughout the bridge, and it seems like they must have had a lot of qualified baseball catchers when it was all over. When the two ends of 19