This Science Channel video examines how seismologists and engineers planned construction of a new San Francisco - Oakland Bay Bridge, replacing the existing eastern cantilever span with a structure designed to withstand a high magnitude earthquake. Bridg e column tests on a shake table, predicting the area’s next earthquake, dealing with liquefaction and the design of the new self-anchored suspension span are illustrated. Director Dylan Weiss; narrator Rick Wasserman. Cry Havoc Productions, Inc. Clo sed captioned.