New Footage Shows Rapid Breakdown of Shipwreck 'Andrea Doria'... Last week, the company OceanGate sent a manned submersible down to map the wreck, using sonar to asses the condition of the rusting remains. The team wants to create a 3-D model of the 697-foot ship to help them understand how wrecks decay over time. “Steel ships with aluminum superstructures, like the Andrea Doria and so many wrecks from World War II, are very common and potentially polluting,” OceanGate CEO Stockton Rush tells Ro