Dam designed to span China's Yangtze River (Chang Jiang).
On completion, scheduled for 2009, it would be the largest dam in the world, producing a vast quantity of hydroelectricity from 26 generators. It would also create an immense deepwater reservoir that would allow 10,000-ton freighters to navigate 1,400 mi (2,250 km) inland from the East China Sea . The extremely controversial project would require displacement of more than a million people and destruction of magnificent scenery and archaeological sites. Critics also fear potential pollution and silting of the reservoir and the possibility of the dam's collapse. Though construction began in 1993, a third of the National People's Congress either abstained or opposed it, and the World Bank would not advance funds, citing environmental and other concerns. Critics have contended that smaller dams on Yangtze tributaries could accomplish the same purpose with fewer risks.