Ethiopia has awarded Italy’s Salini Costruttori a $4.8-billion contract for the construction of Africa’s biggest dam on the Nile, in Ethiopia, despite stiff opposition to the project from both Egypt and Sudan. Image courtesy Ethiopian Electric Power Corporation The Grand Millenium dam will be 145 meters high and 1,800 meters long, with powerhouses on either side of the spillway. Related Links: China Inks Deal for Kariba Dam Upgrade Opposition could make financing the project difficult, officials say.The 5,250-MW-capacity hydropower dam, the Grand Millennium, has raised tension between Ethiopia and Egypt, with Egypt claiming the project will have a negative impact
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.