Monday, 6 July 2026
Skanska has signed a contract worth approximately SEK 1 billion with Svensk Kärnbränslehantering AB (SKB) to construct new rock caverns for the expansion of the short-lived radioactive waste repository (SFR) in Forsmark.
The contract will be included in Skanska’s Swedish order bookings for the third quarter of 2026.
The agreement expands an existing design-phase contract between the two companies to include the production phase. Construction will be carried out in several stages under separate contracts.
The project involves the construction of six underground rock caverns for the disposal of short-lived low- and intermediate-level radioactive operational waste. The caverns will each measure approximately 240–275 metres in length and will be excavated at depths of between 120 and 140 metres, matching the lowest level of the existing repository.
The scope of work includes rock excavation, civil engineering, earthworks, water and sanitation infrastructure, and tunnel lining.
The project forms part of the expansion of the SFR repository, which is designed to increase capacity for operational and decommissioning waste from Sweden’s nuclear power plants. The existing facility has capacity for approximately 63,000 cubic metres of operational waste, while the expansion will add around 117,000 cubic metres of additional storage.
Construction is scheduled to begin in the third quarter of 2026, with completion of this contract expected in the fourth quarter of 2028. The expanded repository is planned to enter test operations in 2030–2031.
