The framework involves the development of a scalable design for facilities to store intermediate-level waste held in ductile iron containers, and then the construction of eight such facilities on separate sites with variable ground conditions.
The anticipated value of the agreement over the four years plus a possible three-year extension is between £15m and £18m.
Magnox supply chain development & relationship manager John Vieth said: "Through Interserve’s consistent delivery we are moving efficiently from project to project and site to site expending minimal effort. Interserve has a thorough understanding of what is required to make the framework a success and is actively supporting us to make it happen."
The agreement with Magnox follows recent success for Interserve in the nuclear sector, with the group having constructed the first two of 11 large, prefabricated modules required for the creation of the Evaporator D facility located at the Sellafield nuclear site in Cumbria, the biggest nuclear project underway in the UK.