Overview
- A ScotRail passenger train derailed at Carmont near Stonehaven on August 12, 2020 after hitting a washout from a failed drainage installation that killed three people and injured six.
- Sheriff Lesley Johnson concluded the drain, built in 2011–12, deviated from its design in piping, materials and an added bund, which stopped it from handling heavy rain and led to the washout the train struck.
- The inquiry found contractor Carillion did not produce 'as built' drawings and Network Rail failed to ensure it received proper records and oversight of the installation.
- Network Rail was previously prosecuted and fined £6.7 million in 2023 for related health and safety failings, and the sheriff made no new recommendations because the Rail Accident Investigation Branch issued 20 recommendations that have largely been implemented or are being progressed.
- Unions have called for Network Rail to bring infrastructure work back in‑house and to retire ageing InterCity 125 trains, while industry leaders say the focus now is completing the RAIB-led safety changes and supporting victims and staff affected by the crash.