Skidmore, Owings and Merrill, Chicago, won a contract to expand Beijing’s central business district. The SOM plan calls for three new districts anchored by signature parks and green boulevards. The plan has other green aspects, which could reduce energy consumption within the district by 50%, reduce water consumption by 48% and landfill waste by 80% and result in a 50% reduction in carbon emissions.
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.