As the disaster in Japan continues to unfold, people here in the US have asked if any American nuclear plants are at the same risk of flooding or earthquakes, with a similar design to the Fukushima Daiichi plant. The answer unfortunately is yes, there are several nuclear power plants in flood zones and quake zones in the US. One of them, in a flood zone, is the plant at Fort Calhoun, Nebraska, some twenty miles north of Omaha.
If you've been paying attention to the news, you know that flooding along the Missouri, Ohio, and Mississippi Rivers has been devastating this spring and continues into the early summer. Fort Calhoun is on the Missouri River.
And the Missouri River has flooded the nuclear plant this weekend.
The Fort Calhoun Nuclear Station turned to diesel-powered generators Sunday after disconnecting from the main grid because of rising floodwaters.
That move came after water surrounded several buildings when a water-filled floodwall collapsed.
The plant, about 19 miles north of Omaha, remains safe, Omaha Public Power District officials said Sunday afternoon.
Sunday's event offers even more evidence that the relentlessly rising Missouri River is testing the flood worthiness of an American nuclear power plant like never before. The now-idle plant has become an island. And unlike other plants in the past, Fort Calhoun faces months of flooding.
This can't be a good thing. Months of flooding? Is the plant designed to handle that? The Nuclear Regulatory Commission of course says everything is fine.
The U.S. Nuclear Regulatory Commission is monitoring the Missouri River at the plant, which has been shut down since early April for refueling. The Fort Calhoun plant will remain surrounded at least through August as the U.S. Army Corps of Engineers continues dumping unprecedented amounts of water from upstream dams.
The 2,000-foot berm collapsed about 1:25 a.m. Sunday due to “onsite activities,” OPPD officials said. The Aqua Dam provided supplemental flood protection and was not required under NRC regulations.
“We put up the aqua-berm as additional protection,” said OPPD spokesman Mike Jones. “(The plant) is in the same situation it would have been in if the berm had not been added. We're still within NRC regulations.”
And that's exactly what TEPCO officials said three months ago. Worth keeping an eye on this story, especially if you have friends or family near Omaha or Lincoln. The news has gone out of their way to in fact stress that nobody's worried.
Just like Japan.
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