The forecast shrinks the anticipated decline in 2009 construction starts to 15% from an earlier estimate of 20% or more. This is fueled by weak residential and commercial markets and the “emerging loss of momentum for institutional building,” according to the report. Projections say the American Recovery and Reinvestment Act of 2009 will hike public works project starts by 10%, “enough to cushion what was shaping up to be a particularly tough year for construction,” says the report by MHC, publisher of ENR. “The public works jump-start will be the saving grace for the year,” says Robert A. Murray, MHC
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.