Thousands of people living below America’s tallest dam in northern California have been evacuated after the discovery of a "hazardous situation" that could cause the structure to fail. At least 160,000 people residing in Oroville and nearby cities were ordered to evacuated on Sunday night after water started to flow over the sides of an emergency spillway at the 230m-high Lake Oroville Dam. The spillway - used to alleviate pressure on the dam - is severely corroded and could fail imminently and unleash flood waters, according to Butte County Sheriff's Office. A large section of concrete at the bottom of the dam’s main spillway had already collapsed by Sunday, sending large chunks of concrete downstream. “Immediate evacuation from the low levels of Oroville and areas downstream is ordered,” said Sheriff Kory L. Honea on Facebook. "This is NOT A Drill. This is NOT A Drill. This is NOT A Drill." However, latest state figures showed that water levels had falle...
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