High Quality Content by WIKIPEDIA articles! Sevmorput ( ) is a Russian nuclear-powered cargo ship with ice breaking abilities, one of only four nuclear-powered cargo ships ever built, and the only one still operating under nuclear power, with the others having been retired or been converted to diesel propulsion. The Sevmorput, as a type of cargo ship, is classified as a Lighter Aboard Ship, transporting lighters and ISO standard containers in specially provided cells in the bilge and on the main deck. It was constructed in Kerch, Ukraine at the Zaliv shipbuilding plant. The ship was completed in 1988. The name of the vessel, Sevmorput, is a Russian abbreviation of Severny Mosrskoy Put ( ), i.e. the Northern Sea Route.