Earlier this month at the International Federation of Consulting Engineers' annual conference in Davos, Switzerland, Africa was recognized as a major market for infrastructure, with political upheavals in the Arab north creating new opportunities, according to regional speakers. Further, major investments are needed in sub-Saharan nations to sustain economic growth rates that now outstrip those of industrialized nations.Originally set to take place in Tunisia, the Oct. 2-5 conference was switched last spring by the organization, known as FIDIC, amid rising tensions in North Africa, said outgoing President Greg Thomopulos, chairman and THOMOPULOSCEO of Stanley Consultants, Muscatine, Iowa. However, Africa remained
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.