Portsmouth Naval Shipyard

A team from Portsmouth Naval Shipyard spent much of 2025 coordinating with the base. At the project’s peak, more than 400 shipyard personnel were deployed to Connecticut.

The event marked the first time an additive manufactured copper nickel flange has been welded at a public shipyard and one of its first applications for in-service submarine use.

The complex modernization project involves thousands of moving parts and months-long preparation.

The Portsmouth Naval Shipyard project distinguished Cheyenne as the first submarine to undergo an overhaul as part of a program that extended its total service life beyond 44 years.

The Manufacturers Association of Maine and the Maine Manufacturing Extension Partnership are teaming up on the month-long campaign with events across the state.

Most of the civilian workforce hails from Maine, with 4,252 employees earning $433.2 million, up from 4,194 employees earning $402.1 million in 2023.

LD 874 creates a loan guarantee program offering interest-free loans to cover lost income for essential state and federal employees during shutdowns lasting more than seven days.

Reduced staffing at the Portsmouth Naval Shipyard in Kittery, if workers opt into the Trump administration's deferred resignation program, would create serious security risks, U.S. senators from Maine and New Hampshire say.

Capt. Jesse Nice has been selected as the 88th commander of Portsmouth Naval Shipyard by the Navy's Naval Sea Systems Command. 

The Hampton will undergo scheduled maintenance and system upgrades to modernize its technology and to help maintain a competitive edge in maritime operations.