Map by Shem Oirere/ENR Art Department The Inga III hydro plant will harness energy from the Congo River's Inga Rapids, located some 225 kilometers from Kinshasa, the capital of the Democratic Republic of Congo. Construction of an $8-billion to $10-billion hydroelectric plant in the Democratic Republic of the Congo may be delayed and cost more if its design remains unchanged, the African Development Bank said in late June.The Inga III hydropower project, on the Congo River's Inga Rapids, located some 225 kilometers from the capital, Kinshasa, is likely to be bogged down by its design. That design, by SNC-Lavalin, Quebec, entails
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.