Now that legislation revamping the nation’s health-care system has been signed into law, construction companies and unions are poring over its provisions, trying to determine the impact of its sweeping changes. Some suggest the measure, enacted on March 30, will drive up firms’ premiums. Others are taking a wait-and-see approach. “The devil is always in the details,” says Stuart Binstock, CEO of the Finishing Contractors Association. Whether the law will produce the benefits its architects hope for isn’t clear, says American Subcontractors Association spokesman David Mendes. “When you’re talking about budget reductions and the costs for the program,” he says,
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.