Abu Dhabi’s Union Railway Co. has begun the procurement process for a roughly $11-billion rail network that will span the United Arab Emirates. Bids for a contract to design and build the fixed infrastructure are due this October. + Image Map: Walter Konefal For ENR Rail network will connect the emirates, and ultimately link up with lines being built in neighboring countries. Scheduled to be complete by 2018, the 1,300-kilometer network would be the first in the Gulf nation. The project will be “world-class,” says Union’s chief executive officer, Richard Bowker. Construction on the 240-km first phase, which is scheduled
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.