NEW : the facility 's countermeasures will keep the overflowing Missouri River from damaging critical gear and causing a hazard to the public . Nuclear regulator tours plants along the swollen Missouri River . Critical infrastructure has been protected at both plants , officials say . They have encroached on the idled Lake Calhoun plant . The still - operating Cooper plant is several feet above the river .
NEW : Nuclear regulator tours plants along the swollen Missouri River . Critical infrastructure has been protected at both plants , officials say . They have encroached on the idled Lake Calhoun plant . The still - operating Cooper plant is several feet above the river .