FILE - In this Feb. 14, 2017, file photo, water gushes from the Oroville Dam's main spillway in Oroville, Calif. An independent team of dam experts says bad design and construction a half-century ago contributed to a disastrous spillway collapse at the nation's tallest dam. Dam-safety experts investigating February's spillway failures at the Oroville Dam say California should have assessed the original flaws. (AP Photo/Marcio Jose Sanchez, File)
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