State highway officials say high winds and traffic vibrations caused a patch on the cantilevered section of the San Francisco Bay Bridge to fail.
That's scary. High winds and traffic vibrations are hardly abnormal conditions for the Bay Bridge.
Three sections of the support system crashed onto the roadway of the bridge's eastern span, between Oakland and Yerba Buena Island, hitting three cars during Tuesday's evening commute.
Miraculously, no one was killed.
Authorities immediately closed the Bay Area's busiest bridge to traffic indefinitely. They hoped repairs could be completed and the bridge reopened Wednesday, but now they are unsure.
Bay Area commuters will be relieved if relief comes by Friday, but that can't be the end of the inquiry by highway officials.
Traffic vibrations are a constant presence for this bridge and high winds are common.
Officials say workers failed to properly reinforce the crack that was found and repaired during the Labor Day bridge closure two months ago.
How could that happen?
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