If Oroville Dam failed, residents likely would not be advised in time

- Communities immediately downstream of California's Lake Oroville dam would not receive adequate warning or time for evacuations if the 770-foot-tall dam itself — rather than its spillways — were to abruptly fail, the state water agency that operates the nation's tallest dam repeatedly advised federal regulators a half-decade ago.

Regulators at the time recommended that state officials implement more public-warning systems, carry out annual public education campaigns and work to improve early detection of any problems at the dam.

Six years later, state and local officials have adopted some of the recommendations, including automated warnings via reverse 911 calls to residents. But local officials say the state hasn't tackled other steps that could improve residents' response, such as providing routine community briefings and improving escape routes.

The catastrophic scenario of a sudden breach at California's second-largest water reservoir, outlined between 2010 and 2012 in online archives of federal dam regulators, is a different and far graver situation than the concern that prompted sudden evacuation orders Sunday for 188,000 downstream residents. Operators of the nearly half-century-old dam in California's Sierra Nevada foothills became worried that the water cascading from the reservoir after a series of winter storms could roar uncontrolled down a rapidly eroding emergency spillway toward towns downstream.

Read more at FoxNews.com.

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