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Nuclear reactor safe in flood, officials say

OMAHA — The pictures of a Nebraska nuclear power plant were startling: Floodwaters from the swollen Missouri River had risen nearly to the reactor building, with the potential to climb even higher.

Coming only a few months after Japan's nuclear disaster, the Associated Press images alarmed many people who saw them earlier this week. But nuclear regulators and the utility that runs the Fort Calhoun reactor say there is little cause for immediate concern.

The plant, encircled by a giant rubber barrier against the water, has been shut down since April. The Omaha Public Power District says the complex will not be reactivated until the flooding subsides.

And unlike Japan's infamous Fukushima Dai-ichi facility, the entire plant in Nebraska still has full electrical power for safety systems, including those used to cool radioactive waste. It also has at least nine backup power sources.

The Fort Calhoun complex "is safe and it will continue to be safe throughout this flooding situation," said Dave Bannister, chief nuclear officer for the power district.

A spokesman for the Nuclear Regulatory Commission reinforced that view. "We think they've done everything that they need to do to respond to the current conditions," Victor Dricks said.

Flooding remains a concern all along the river because of the massive amounts of water released by the Army Corps of Engineers. The river is expected to rise as much as 5 to 7 feet above flood stage in much of Nebraska and Iowa and as much as 10 feet over flood stage in parts of Missouri.

The corps expects the river to remain high at least into August because of heavy spring rains in the upper Plains and substantial Rocky Mountain snowpack melting into the river basin.

After fielding many worried questions about the plant, utility officials held a news conference Friday to reassure the public.

"We understand the deep responsibility we have in operating a nuclear power plant," CEO Gary Gates said.

Workers at the facility 20 miles north of Omaha are still able to get inside the building without getting wet by using walkways that rise above the water.

The river has risen 1.5 feet higher than Fort Calhoun's 1,004-foot elevation above sea level, but the water is being held back by a series of protective barriers, including an 8-foot rubber wall outside the reactor building.

Fort Calhoun can be fortified to handle water up to 1,014 feet above sea level, Bannister said.

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