It also had to be iconic. It had to be somethingthat people looked at and felt inspired...

It also had to be iconic. It had to be something
that people looked at and felt inspired by. [narrator]
Earthquake engineering had come a long way
in nine decades. And the result was this. A six billion dollar
shock-proof bridge. Not only does it feature
the world's largest self-anchored suspension span, but the entire
east bay section can handle more than 10 times
as much seismic movement than the original. [Bart] With this new
eastern span, we can accommodate
over six feet of movement in different locations