The world’s first floating nuclear powerplant is currently under construction at a shipyard in St. Petersburg. It will be 144 m long and30 m wide and house two 35-MW reactors. It will supply power in remote areas. Upon completion in 2012, crews will tow the plant to the port of Vilyuchinsk on the Kamchatka peninsula, where it will supply power to a submarine base. Russia’s United Industrial Corp. (OPK) is building the FNPP at its Baltiiskii Zavod shipyard for owner Concern Energoatom, Ukraine’s state-owned nuclear utility. Russia has extensive experience with nuclear-propelled submarines and icebreakers, and the reactors on the
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.