World’s biggest submersible will carry Costa Concordia

A Dutch salvage firm has won a £20 million contract to remove the wreckage of Costa Concordia from the Italian island of Giglio. The cruise ship, which was raised upright in a complicated operation last month, will be carried on Dockwise Vanguard, the world’s largest semi-submersible ship.

The vessel, more used to transporting oil platforms, has a flat deck measuring 900 feet by 230 feet and is raised and lowered by filling ballast tanks with water.

World’s biggest submersible will carry Costa Concordia Mirror