The first phase of the $90-billion Delhi-Mumbai Industrial Corridor (DMIC), a collaboration between India and Japan, is expected to begin late this year and be completed in 2018, say officials. The project to build a 150-kilometer corridor on either side of the 1,483-km freight rail line planned between Delhi and Mumbai was to have started in 2008. The project incorporates nine mega-industrial zones of about 200 to 250 sq. km, a high- speed freight line, three ports, six airports, a six-lane intersection-free expressway and a 4,000-megawatt powerplant. It will develop 24 locations into high-tech residential and industrial hubs, according to
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.