seismic safety

Concrete Credence: More Bay Bridge Woes May Validate Concerns of Span’s #1 Critic

Abolhassan Astaneh-Asl has been portrayed as a Cassandra, but these days he merely seems prescient. The UC Berkeley engineering professor was one of the earliest and most vocal critics of the new Bay Bridge design. The self-supported span was inappropriate for a seismically active area, he said, insisting that what was needed was a more prosaic, anchored span fixed securely to the mainland and Treasure Island.

Bridge Over Troubled Bolts: Cal Experts Question Whether New Bridge is Safe

As the Bay Area celebrates the opening of a new Bay Bridge—an eastern span that transportation officials are hailing as elegant and seismically secure—UC Berkeley engineers are expressing serious misgivings about whether the structure is safe. And at least one professor labels it far less stable than the old bridge. 

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