Secretary of the Navy Carlos Del Toro served as the keynote speaker. United States Senators Susan Collins and Angus King of Maine, and Jeanne Shaheen, and Maggie Hassan of New Hampshire attended the ceremony, along with United States Representative Chris Pappas (NH-01).

The Dry Dock 1 area was originally built during World War II to supplement submarine production, and this $1.7 –billion, 7-year construction project will modernize the historic dry dock, enabling Portsmouth Naval Shipyard to meet the Navy’s needs for decades to come. The multi-mission dry dock provides increased capacity for accommodating three Los Angeles or Virginia-class attack submarines at once for repair, maintenance, and modernization.

Emphasizing the growing threats around the world, Del Toro expressed how a robust Navy plays a vital role today and in the future. “This is a significant investment by the American people, and because of this investment, they can sleep more securely, because they’ll know our attack fleet can rely on quick and available maintenance and repair.”

Portsmouth Naval Shipyard’s Commander Capt. Daniel Ettlich emphasized the significance of the contract as the “largest and most complex project ever” awarded by Naval Facilities and Engineering Systems Command (NAVFAC). “Today’s groundbreaking cements the future of Portsmouth Naval Shipyard and the future of our submarine force.”

The project is part of the Shipyard Infrastructure Optimization Program (SIOP), which is a joint effort between Naval Sea Systems Command, NAVFAC, and Navy Installations Command to recapitalize and modernize the infrastructure at the Navy's four public shipyards. The agenda includes repairing and modernizing dry docks, restoring shipyard facilities and optimizing their placement for efficiency, and replacing aging and deteriorating capital equipment. For more information about SIOP, visit https://www.navsea.navy.mil/Home/Shipyards/SIOP/.

Portsmouth Naval Shipyard is America’s leader for attack submarine maintenance, repair, and modernization. The on-time completion of submarine availabilities is critical to maintaining the U.S. Navy’s maritime superiority. As a NAVSEA-operated field activity, Portsmouth is committed to expanding our undersea advantage and maximizing the material readiness of the fleet by safely delivering first-time quality, on time, and on budget.