Progress continues on the construction of the South Yard Assembly Building, a 200,000 square-foot building that will eventually be home to 1,400 skilled shipbuilders who will deliver the Columbia class.
The building is now almost 50% structurally complete and on track to receive the first Columbia module from Quonset Point in December 2023. Today, each of 6 super modules of the lead ship of the Columbia class – the largest and most highly outfitted modules we’ve ever constructed – are under construction at Quonset Point.

This point in construction consists of steel and concrete work, including columns, bracing, and roof trusses of the East and West Mezzanine sections and assembly bay.
Moorings for the new Ocean Transport Barge HOLLAND are also complete, which supports the barge being delivered in early November. The receiving station, which is an electrical sub-station, is also in place and work is currently being done to run power to it. This week, EB received a $475 million contract modification to an existing contract supporting the Columbia program. The Columbia program is the company’s number one priority and the backbone of our nation’s strategic deterrent.

EB President Kevin Graney recently said, “Columbia is arguably the greatest engineering achievement of the most advanced military in the world. The Columbia class will carry 70% of the US nuclear arsenal. Over the last 14 years – since the inception of the program – we have leveraged more than a century of submarine design and construction know-how into this priority program.”
In the coming weeks, the siding installation of the SYAB is scheduled to begin. Construction of a utility building, housing a land-based steam boiler, pure water facility, electrical and air utilities, will commence toward the end of October.
Some imagine the future. We deliver it now.
As construction of the District of Columbia (SSBN 826) continues apace in EB’s South Yard Assembly Building, the sailors who will soon be at the controls are spending hours in a dynamic, high-tech simulator learning the intricacies of operating the 21,000-ton, first-in-class boomer. The Columbia Ship Control Operator Trainer (CSCOT) is a replica of the...Continue reading→
Fifty years after the USS Groton (SSN‑694) first launched, dozens gathered outside the Groton Public Library Oct. 9 to celebrate the groundbreaking of the USS Groton Sail Monument. The $6.6 million project—three decades in the making—will honor the men and women who design, build, operate and maintain the Navy’s submarines, as well as the families...Continue reading→
2026 American Heart Association Eastern Connecticut Heart Walk Recap Saturday, October 3, 2026 | UConn Avery Point The 2026 American Heart Association Eastern Connecticut Heart Walk at UConn Avery Point was nothing short of extraordinary. Under bright autumn skies, 26 incredible Electric Boat teams and 151 walkers came together with passion, purpose, and unstoppable energy...Continue reading→
Juno, the Mystic Aquarium’s convivial, photo-bombing Beluga whale, will continue swimming in cool comfort thanks to an unlikely chain of events that began 40 miles east in an Electric Boat industrial building at Quonset Point. That’s where EB’s Russ Tatro and Chris Logan were going over plans with a vendor, Carrier Corp., to replace Building...Continue reading→
A team from Groton and Quonset Point headed to New Hampshire-based Hypertherm Associates this week to get a closer look at a modern automated plasma gouging process designed to streamline hull fabrication. The visit was part of a broader effort across Electric Boat to bring more advanced, state‑of‑the‑art manufacturing tools into the shipyard. EB plans...Continue reading→
The Hartford Business Journal (HBJ) 40 Under Forty Awards recognize outstanding young professionals in the Greater Hartford area who are excelling in their industries through their leadership roles. They are driven by success, motivated by challenges and are role models for their peers. These individuals are part of an outstanding class of upcoming business leaders...Continue reading→
Electric Boat employees joined military and community leaders for the Chamber of Commerce of Eastern Connecticut’s annual Military Appreciation Breakfast on Sept. 30 at Ocean Beach Park’s Port ‘N’ Starboard. The event provided more than 120 complimentary seats to active-duty service members from the Navy, Coast Guard and Connecticut National Guard. General Dynamics Electric Boat...Continue reading→
We are just one week away from the 2026 AHA Eastern Connecticut Heart Walk on October 3, 2026, at UConn Avery Point and this is our moment to finish strong. We’ve built incredible momentum, and now we’re within striking distance of something big. Right now, Electric Boat is holding second place, behind Mohegan Sun by...Continue reading→
PCU Arizona’s (SSGN 803) Section 2B/5 was successfully delivered to Groton from Quonset Point. At 184 feet in length, this section – which includes the Virginia Payload Module (VPM) – is the largest Virginia-class shipment ever transported. Arizona, the first submarine to incorporate VPM, will be about 460 feet long upon final construction. Section 2B/5...Continue reading→