One month after announcing ambitious plans to dig a 50-km-long shipping canal 100 km west of the Bosphorus Strait, Prime Minister Tayyip Erdogan’s scheme is being dismissed by some as election grandstanding designed to gain leverage for Turkey in talks with Russia to secure commitments of crude for the languishing Samsun-Ceyhan oil pipeline project. The proposed 50-km-long canal to bypass Turkey's Bosphorus would be wide enough to accomodate two tankers in either direction. The canal is located 100 km west of the Bosphorus Strait in Turkey and would connect the Black Sea to the Mediterranean. The grand canal scheme, which
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.