BAE Systems has appointed Costain, Shepherd and Morgan Sindall as the framework contractors to deliver the £300m redevelopment of its submarine site in Barrow-in-Furness.
The three will compete with each other on a mini-tender basis to complete the design and build of the individual projects that make up the overall programme.
The eight-year programme includes new facilities and the refurbishment of existing buildings. The plans form part of BAE's preparation to build nuclear submarines to replace Trident.
The improvements at the Barrow yard, which employs around 6,000 staff, includes an extension to the Devonshire Dock Hall construction facility; two new buildings at Central Yard that will house pressure hull units ready for shot blast and paint and the integration of submarine equipment; the refurbishment of the site's main fabrication facility; and a 280,000 sq ft off-site logistics facility to store submarine parts and materials.
The first project to go to tender under the framework arrangements will be for the design and construction of the first Central Yard unit.
The works at Barrow-in-Furness are being funded by the Ministry of Defence.
Tony Johns, managing director of BAE Systems Submarines, said: "The design and build of a nuclear powered submarine is one of the most complex challenges known to man. As such, it's crucial we have cutting edge, state-of-the-art facilities to enable us to deliver these world-class submarines, which are so vital to our nation's defences."
BAE Systems is leading on the design of the Successor submarine, working alongside the Ministry of Defence, Rolls Royce and Babcock.