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Navy/USMC

First Columbia-Class Sub Bow Section Arrives At Electric Boat

Monday, December 1st, 2025

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First Columbia-Class Sub Bow Section Arrives At Electric Boat

Artist rendering of the future Columbia-class nuclear-armed ballistic missile submarine (SSBN), which will replace the Ohio-class submarines. (Illustration: U.S. Navy)

The bow section of the first Columbia-class ballistic missile submarine arrived at General Dynamics’ [GD] Electric Boat South Yard assembly building in Groton, Conn. last week, enabling it to start final assembly. With this delivery, all of the major modules for the future USS District of Columbia (SSBN-826) are now at Electric Boat’s facility. The bow and stern of the SSBNs are being built by HII’s [HII] Newport News Shipbuilding division. Rep. Joe Courtney (D-Conn.), whose district includes the shipyard,…

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