New York City-based Skanska USA has confirmed that the government is probing subcontracting arrangements made by the company and other large contractors that may have involved phony certified minority and women-owned firms. Photo: NYC DEP Subcontracting on Croton water filtration plant in Bronx, N.Y., set for completion in 2012, is under investigation. Related Links: The Croton Water Filtration Plant Project The Fulton Street Transit Center The New York Times also reports that Schiavone Construction Co., Secaucus, N.J., is a target of the investigation. Neither firm has been charged with any crime. The investigation, according to published reports involving unnamed sources,
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.