With competition stiffer, particularly on federal and other public-sector projects, the Construction Management Association of America is banking on more firms opting to use construction management certification as a competitive edge. CMAA reports an 18% gain since mid-2009 in the number of managers who have become certified and claims more owners are specifying it in procurements and having their own staffers achieve the credential. Related Links: Seeking New Directions By Raising the Bar on CM Much of the certification gain has come this year, says John McKeon, a CMAA spokesman. He says that, by the end of March, the association�s
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.