California officials are considering controlled underwater explosions to demolish parts of San Francisco's old Bay Bridge.
Department of Transportation officials said Friday they are consulting with environmental regulators about the possibility. California state bridge engineer Brian Maroney says using explosives to knock out the old piers of the Bay Bridge could be the most environmentally friendly method.
Transportation officials expect to blow up the first pier in November if environmental agencies grant approval. Transportation officials say motorists are unlikely to see or hear any of the underwater explosions.
A new east span replaced the old bridge in 2013.
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