Overview
- Regular services resumed on Monday, February 16, restoring trains on the Surrey–Sussex commuter route after a late‑January closure.
- Network Rail said the failure was a nine‑metre rotational slip caused by saturated soil following persistent rain.
- Crews removed 2,800 tonnes of failed material, built a concrete platform for a 50‑tonne piling rig, installed the piles, and reshaped the embankment.
- Wider resilience work included installing 324 soil nails on the embankment to reduce the risk of future slips.
- During the shutdown, Southern ran replacement buses between Horsham and Dorking, kept a half‑hourly Dorking–London Victoria service, and advised alternatives via Gatwick Airport.