Peter Arbour thinks his patented prefabricated cladding system, with an integrated solar-energy unit, will be a winner in the marketplace, not just the winner of a design contest. The architect expects the concrete-and-stainless-steel system to make its commercial debut in a year or two, after further development of the award-winning prototype. Photo: Courtesy Of The Center For Architecture/AIA NY Award-winning unitized cladding system needs more tweaking and testing before it is ready to be installed on a real building. Photo: Courtesy Of The Center For Architecture/AIA NY Arbour holds a patent on the system, which is cast using 20,000-psi concrete.
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.