San Francisco Chronicle

Concerned about bridge during quake

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If cars and heavy trucks driving west across the upper deck of the Richmond-San Rafael Bridge can cause chunks of concrete as large as basketball­s to fall on the unsuspecti­ng eastbound motorists below, I can only imagine what a major earthquake would do to the structure. Transporta­tion officials may claim that eroding concrete does not affect the bridge’s structural integrity; however, such unplanned, gridlock-inducing shutdowns and subsequent emergency repairs do not provide much confidence in its general safety. Richard Panuschka, Sacramento

 ?? Peter DaSilva / Special to The Chronicle ??
Peter DaSilva / Special to The Chronicle

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