01/06/2026
Proud of our team’s role in the design and construction oversight of ATLAS. Seeing it arrive at Electric Boat’s Groton shipyard is a major milestone and something we’re truly proud to be part of!
Electric Boat’s Columbia-class submarines will roll out and launch from our South Yard Assembly Building (SYAB) using a new floating dry dock called Atlas. Built by Bollinger Shipyards in Louisiana, Atlas arrived at General Dynamics Electric Boat’s Groton shipyard on January 3, 2026, and is 618 feet long by 90 feet high by 140 feet wide. This height is the total height of the dry dock. Typically, Atlas will stand 60’ above the adjacent deck, which is about 40% of the height of the SYAB. When in operation, the dry dock will travel along the south face of the SYAB and align to either of the assembly bays. When not in operation, Atlas will be moored closer to the shoreline.