The United Nations now estimates that 3 million Haitians—a third of the population—were “badly affected” by the magnitude-7 earthquake that ravaged the island nation on Jan. 12. Providing shelter, sanitation and preventing cholera in Port-au-Prince are critical challenges, but so are food shortages in rural areas. An estimated 500,000 former residents of the badly damaged capital have migrated to the countryside. Photo: Odebrecht Construction At Work Odebrecht retrained 30 local airport service employees in basic construction skills and hired them to work on refurbishing airport-terminal passenger and cargo facilities in Port-au-Prince, Haiti, for American Airlines, which assisted with procurement 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.