It has been a long time coming, but the construction recovery seems to be almost here. The housing market has been keeping up construction growth, which is rebounding from record lows, but now many of the non-residential building markets are starting to turn the corner, making for many optimistic forecasts for 2014. The remaining drag on construction growth for next year is the public sector, which continues to be squeezed by the battle over the federal deficit.Some economists, however, see a silver lining even there. "The recession pushed millions of
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.