With federal approval to build the first U.S. nuclear reactors in 30 years granted on Feb. 9, two units in the state of Georgia set to generate 2,200 MW of power will proceed. However, the nuclear industry sees future growth in a more scaled-down version known as the small modular reactor, or SMR. Firms already are developing SMRs, ranging in size from 45 MW to 300 MW.
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.