Florida Office of the Public Counsel Kelly says utility apparently mismanaged steam generator replacement project. Courtesy Progress Energy's Florida Public Service Commisssion public filing Root-cause analysis report by Performance Improvement International identified seven factors contributing to delamination, including tendon stresses and detensioning sequence. Related Links: Florida Utility: No Way To Predict Nuke Plant Cracking Japanese Disaster Puts Focus On U.S. Powerplant Problems Florida’s Public Counsel J.R. Kelly calls the separation of a concrete wall at Progress Energy Florida’s Crystal River-3 nuclear unit “a huge construction negligence case,” and says that Progress does not appear to have been very prudent in
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.