Costain has secured a four-year project to deconstruct and partially reduce the height of the two 1960s Magnox reactor buildings at the Trawsfynydd site, cutting them down from 54m to 25m. The work aims to significantly lessen the structures’ visual impact on the surrounding Snowdonia National Park landscape.
At the peak of the programme, more than 100 people will be employed, with Costain committed to engaging local supply chains to strengthen regional skills and drive economic growth.
This project marks the next phase in the long-term decommissioning of the former Magnox power station, which has been undergoing clean-up operations since 1991.
Sam White, managing director for natural resources at Costain, said: “This work is part of our commitment to a sustainable future. We’re proud to be deepening our partnership with NRS and collaborating closely with our local supply chain to deliver this complex decommissioning project to the highest safety and quality standards.”
Rob Fletcher, chief executive officer at Nuclear Restoration Services, added: “This is a defining moment for Trawsfynydd. After years of meticulous planning and preparation, we are now entering the delivery phase of one of the UK’s most complex and ambitious decommissioning projects.”
Costain has previously carried out enabling works at Trawsfynydd, including the installation of new capping roofs for the reactor buildings. The company is also collaborating with NRS on a six-year programme covering 11 other UK sites and remains a key partner in Sellafield’s Decommissioning Delivery Partnership.