The U.S. State Dept. has announced that architect HOK, St. Louis, will design a $192-million addition to the U.S. Embassy complex in Moscow. Construction of the 15,000-square-meter building is set for completion in 2015. It will achieve at least Silver LEED certification, according to the firm. HOK was one of 27 architects that submitted proposals to design the addition, the company says.
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.