These are difficult economic times. People are losing their jobs, consumer spending is down, banks are sitting on what money they have and private companies are standing pat. No one knows that better than the construction industry, whose market that was booming a year ago has gone bust. Yes, things are bad. We all know that. But there still is money out there. Despite the near-hysterical headlines, there now are water-cooler conversations about how, if you need something new, now is the time to buy. Stores are desperate to move product and are marking down prices to lure customers. 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.