Awarded through the Regional Delivery Partnership (RDP) framework, the contract is worth approximately £100m over five years.
Junction 22A is a new motorway junction being constructed between Burnham-On-Sea and Bridgwater in Somerset.
It will provide access to the Gravity Smart Campus and a £4bn gigafactory being developed by Agratas, which will be Britain’s biggest electric vehicle battery manufacturing facility.
This is not a paywall. Registration allows us to enhance your experience across Construction Management and ensure we deliver you quality editorial content.
Registering also means you can manage your own CPDs, comments, newsletter sign-ups and privacy settings.
The junction will consist of north-facing slip roads and aims to alleviate congestion on the motorway south of the River Huntspill.
As the project’s delivery integration partner and main works contractor, Costain will design and construct the new junction.
The company will provide a range of infrastructure services, including engineering, programme delivery and supply chain management. WSP will support Costain as design partner.
Alex Vaughan, Costain’s CEO, said: “This award is built on our long-established highways delivery expertise and trusted partner relationship with National Highways.
“We will work closely with our supply chain partners to design and deliver this new junction that will provide access to the new gigafactory and help to drive economic growth in this region of the UK.
“This investment, supporting the UK’s growth ambitions, is another example of Costain’s commitment to deliver critical national infrastructure programmes that improve people’s lives.”
The January/February 2026 issue of Construction Management magazine is now available to read in digital format.
Powered Access
CM, in partnership with IPAF, has launched a new survey to explore the industry’s views and experiences with powered access machines on construction projects.
This is not a first step towards a paywall. We need readers to register with us to help sustain creation of quality editorial content on Construction Management. Registering also means you can manage your own CPDs, comments, newsletter sign-ups and privacy settings. Thank you.
