"FORT CALHOUN, Neb. — When safety regulators arrive for a tour of a nuclear plant, the operators usually give the visitors a helmet, safety glasses and earplugs. When Gregory B. Jaczko, chairman of the Nuclear Regulatory Commission, got to the Fort Calhoun plant on Monday morning, the Omaha Public Power District offered him a life jacket.
Technically, what the plant is undergoing is not a flood but a “water event,” as the regulatory commission classifies it. But Fort Calhoun has clearly been outflanked by the Missouri River, first at its front door and now at its back door as well. The only access route to the plant is over a sinuous path of catwalks built over the submerged parking lot and walkways in recent weeks.
Vital equipment like generators, pumps and controls are dry, according to the power company and to Mr. Jaczko, who spent a couple of hours clambering over walls of sandbags and inspecting waterproof barriers, some of which were added in recent months at the commission’s insistence. "