Galliford Try will build a new 6.5km Sizewell Link Road and 1.8km Two Village Bypass and Breheny Civil Engineering will construct two new connecting roundabouts on the A12.

The contracts follow the £19m award to Jackson Civil Engineering in January to deliver key road schemes for the project.

Damian Leydon, Sizewell C Site Delivery Director, said: “These new contracts demonstrate how committed this project is to delivering high-value contracts to businesses here in Suffolk and across the UK – and it shows once again that we have an abundance of the kind of skilled people we need right here in this region.

“These contracts also mark a milestone in the offsite infrastructure we need to build Sizewell C. By building these roads and roundabouts, we can deliver what we need safely and efficiently, and we can reduce the impact of construction traffic on the existing road network here in Suffolk at the same time.”

The Sizewell Link Road is expected to be completed in 2027 and will bypass local villages, Theberton and Middleton Moor, with new roundabouts and junction at each end to connect to existing road infrastructure.

The Two Village Bypass will be completed by the end of 2026 and will enable construction traffic to bypass the villages of Farnham and Stratford St Andrew.

Mark Burrows, Regional Commercial Director, Breheny Civil Engineering said :“We originally worked on Sizewell B in the 1980s, we have completed several projects on Sizewell C already, and we’re delighted to have now been awarded the construction of the new roundabouts on the A12 at Yoxford and Friday Street.

“We’ve been working on sections of the A12 since the 1970s and look forward to continuing to improve the A12 with the building of the new roundabouts to support the construction of Sizewell C.”