Related Links: The Ten Most Noteworthy Rail Projects: Overview and Related Stories Benguela RailwayCost: $1.56 billionConstruction period: 2006-12For decades, the east-west, 1,344-kilometer-long Benguela Railway spanning Angola provided the shortest way to transport the Congo’s mineral riches to Europe and was the key leg of Africa’s only transcontinental route. The railway company, Caminhos de Ferro de Benguela, was also Angola’s largest employer, with a payroll of 14,000 by the 1960s. But Angola’s long civil war, from 1975 to 2002, terminated the line. Trains and repair crews were ambushed, stations bombed and bridges dynamited, and the right-of-way was mined.In 2006, the China
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.