Related Links: U.S. Stimulus Causing Rebound in Water Project Spending The overdue bill for water systems is reaching alarming size, with economic consequences that will weigh on U.S. businesses for years to come.An economic analysis on unmet public water and wastewater system needs commissioned by the American Society of Civil Engineers (ASCE) paints a grim future for the U.S. economy. The costs associated with unreliable delivery and inadequate treatment, the analysis shows, will combine to cut the nation’s gross domestic product by as much as $416 billion over the next decade if current spending levels remain unchanged.Failure to Act: The
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.