(CNN) -- A water-filled berm protecting a nuclear power plant in Nebraska from rising floodwaters collapsed Sunday, according to a negotiator,Cheap Supra Shoe, who said the plant remains safe.
Some sort of mechanism came in adjoin with the berm, puncturing it and causing the berm to deflate, said Mike Jones, a spokesman for the Omaha Public Power District (OPPD), which owns the Fort Calhoun plant.
The plant, located about 20 miles north of Omaha, has been shut since April for refueling.
"The vegetation is still protected. This was an added, a secondary, level of conservation namely we had put up," Jones said. "The plant remains protected to the class it would have been whether the aqua berm had no been joined."
Parts of the grounds are already beneath water as the swollen Missouri River overflows its banks, including areas around some assistant mansions, Jones said.
In counting to the berm, authorities have put in location floodgates and other barriers to aid protect the facility, favor sandbags.
The 8-foot-tall, water-filled berm, 16 feet broad at its pedestal, circled the reactor containment architecture and auxiliary buildings, according to the Nuclear Regulatory Commission.
"We built the plant up high ample based aboard history, based ashore the flooding in the past. If the flood would mushroom fhardly everme reason above that level we have taken precautions, again,Supra Shoes, per our procedures to sandbag the essential equipment for the reactors,Supra UK," said Dave Van Der Kamp, with the Nebraska Public Power District.
He said the chances of floodwater obtaining into the creating where the core is kept are almost zero.
The plant is charted to resist waters up to 1,014 feet on average sea level,Supra Trainers, according to the OPPD. The creek currently stands by 1,006.3 feet and is not expected to surpass 1,008 feet, the OPPD said.
Heavy rainfall in Montana and North Dakota, combined with thawing sleet from the Rocky Mountains, have sent the Missouri surging downstream this summer. The river bathed over and punched through levees in nearby northwestern Missouri, spurring authorities to urge about 250 beside dwellers to leave their families.
The 6 to 12 inches of rainfall in the upper Missouri basin in the past few weeks namely nearly a regular year's worth, and runoff from the mountain snowpack is 140% of natural, according to forecasters.
It was catastrophic flooding from Japan's March 11 tsunami that knocked out cooling systems at the Fukushima Daiichi nuclear power plant, resulting in 3 reactors melting down and producing the worst nuclear disaster since Chernobyl. This year's Midwestern flooding has too led to a spate of rumors about the Fort Calhoun plant that OPPD and the NRC have been trying to knock down.
The utility has set up a "torrent rumor control" sheet to reassure the public that there has been not release of radioactivity from the plant. An electrical bombard June 7 did beat out cooling to its spent oil warehouse pond as approximately 90 minutes, yet the coolant water did not approach a boiling point before export pumps went into service, it has said.
CNN's Patrick Oppmann contributed to this report.
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