The Manitowoc 31000, working here in South Korea, supports a maximum capacity of 2,300 tonnes and a load moment of 252,000 ft-kips. Related Links: Manitowoc Bets $30-Million Super Crane on Nuclear Power The World's Biggest Supercranes After sitting idle through much of the economic downturn, Manitowoc's first model 31000 supercrane is hard at work in Gwangyang, South Korea, lifting pressure vessels for a coal gasification project."The Manitowoc 31000 has a tremendous capacity, and we will be able to use it for heavy lifts on a diverse number of projects," says Chang Hwan Jang, chairman
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.