# Sizewell C nuclear project rail infrastructure development > Live situation record from CLSTR: https://clstr.news/situations/sizewell-c-nuclear-project-rail-infrastructure-development > Updated: 2026-09-10T08:21:14.000Z. Sources: 4. Developments: 2. To support the Sizewell C nuclear power plant construction project, infrastructure upgrades were initiated at the Saxmundham rail junction on the East Suffolk line. The project aimed to modernize the junction with a powered crossover and integrated signaling to facilitate more efficient freight movement between the Leiston branch and the East Suffolk line. Following these upgrades, the first commercial freight train successfully utilized the new 2.8km Green Rail Route to deliver over 1,000 tonnes of construction materials from Derbyshire to the site. This rail link is intended to reduce heavy goods vehicle reliance, with estimates suggesting each train removes the equivalent of approximately 50 HGV journeys from local roads. While the rail route supports the goal of delivering 60% of materials via rail and sea, observers have noted concerns regarding the site’s vulnerability to climate change and coastal erosion. ## Timeline ### 2026-09-10: Sizewell C receives first commercial freight train via new rail link The first commercial freight train has arrived at the Sizewell C construction site in Suffolk via a new rail link, aiming to reduce local road traffic by transporting materials by rail. 2 sources. https://clstr.news/cluster/sizewell-c-receives-first-commercial-freight-train-via-new-rail-link ### 2026-09-02: Saxmundham rail junction to be upgraded for Sizewell C freight The Saxmundham rail junction will undergo modernization to support Sizewell C freight services, aiming to move 60% of construction materials by rail and sea to reduce road congestion. 2 sources. https://clstr.news/cluster/saxmundham-rail-junction-to-be-upgraded-for-sizewell-c-freight --- Cite as: Sizewell C nuclear project rail infrastructure development. CLSTR, https://clstr.news/situations/sizewell-c-nuclear-project-rail-infrastructure-development