Thousands Of Units, Percent Change Year To Year. Thousands Of Units, Percent Change Year To Year. Related Links: A Stalled Recovery Ready To Rev Up Residential construction will rebound 33% next year and another 47% in 2012, following this year’s disappointing 8% gain, according to a forecast by the National Association of Home Builders. Washington, D.C. Despite the large percentage gains projected for the next two years, NAHB predicts single-family housing in 2012 still will be well below 2006’s peak year. NAHB predicts a similar scenario for multifamily housing, with that market making steady gains through the next few years
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.