Electric Boat – Building 256 Fabrication Enclosure
- Electric Boat Groton, Connecticut shipyard
- Facility expansion intended to provide additional manufacturing capacity in support of the development and manufacture of US Navy’s Columbia class nuclear powered ballistic missile submarines
- Raised center platform with a deck over six feet above finished floor
- Operable bifold roof system to allow the existing building overhead bridge cranes to support fabrication and bring materials into the enclosure