Related Links: The Ten Most Noteworthy Rail Projects: Overview and Related Stories After decades of delays, Brazil’s ambitious railroad project to revitalize the infrastructure of its booming northeast region is on track. The 1,728-kilometer Transnordestina rail line, linking city of Eliseu Martins in the region’s interior to the ports of Pecém and Suape, is slated to begin operations late next year.The $3.21 billion route is being built by Brazilian steelmaker Companhia Siderúrgica Nacional, which holds a 30-year concession that gives it a 75% stake in the line. CSN has financed through regional development agency Fundo de Investimentos do Nordeste and
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.