In this June 14, 2011, file photo, the Fort Calhoun nuclear power station, in Fort Calhoun, Neb., is surrounded by flood waters from the Missouri River. 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. (AP Photo/Nati Harnik, File)

By Grace Muller, AccuWeather.com Staff Writer

Jun 29, 2011; 10:35 AM ET

The nuclear containment buildings will stay dry as long as the floodwater doesn’t reach 1,014 feet above sea level. There is almost no chance of a core meltdown because flood waters should not get higher than 1,008 feet.

Last week, the Union of Concerned Scientists, a non-profit watchdog group, applauded the U.S. Nuclear Regulatory Commission for citing Fort Calhoun nuclear power plant in 2010.

During the inspection last year, the U.S. Nuclear Regulatory Commission issued a Yellow inspection finding to the plant for lacking flood preparation.

The Fort Calhoun nuclear power plant shut down to refuel April 7. The plant will stay closed until flood waters go down.