This year started out well, with a stimulus jolt to the depressed homebuilding and public-works markets. But it ended badly when the tax credits to home buyers expired, federal stimulus spending fell short of expectations, and the non-residential building market tanked all on its own. As a result, 2010 will probably become known in the economic lexicon as “the stalled recovery.” In a word, what stalled is housing, which traditionally leads the construction industry out of a recession. A year ago economists were predicting 30% increases in the housing market, but that turned into a mere 6% gain, not enough
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.