A former chief inspector of New York City's buildings department may have incriminated himself twice while testifying in a criminal case against a crane executive—who was also his former boss. That was the view of lawyers for the victims of a fatal 2008 Manhattan crane collapse, for which James Lomma is on trial. He is accused of negligent homicide and other charges in the high-rise accident that killed operator Donald Leo and sewer worker Ramadan Kurtaj.Prosecutors believe the crane supplied by Lomma had a poorly repaired turntable. In his testimony, Michael Carbone, the former regulator and onetime employee of a
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.