Engineering work between Three Bridges and Brighton will change late-night and early-morning Southern and Thameslink trains from Monday 16 to Friday 20 November 2026, with buses replacing trains on some journeys, according to National Rail.
National Rail says the work closes all lines between Three Bridges and Brighton very early on Tuesday to Friday mornings. It also warns that some trains running late on Monday to Thursday evenings are affected.
Southern
Monday to Wednesday. The 23:25 London Victoria to Brighton train is diverted after Haywards Heath to run via Lewes. It does not call at Burgess Hill or Hassocks and arrives later than usual. A replacement bus runs from Haywards Heath to Brighton, calling at Burgess Hill and Hassocks.
Tuesday to Thursday. The 00:02 London Victoria to Worthing train terminates at Three Bridges, and a replacement bus runs from Three Bridges to Brighton. Additional trains run between Brighton and Worthing in place of the terminated service.
Tuesday to Thursday. The 01:08 Haywards Heath to Eastbourne train does not run. Replacement buses run from Haywards Heath to Lewes and from Lewes to Eastbourne.
Thursday night and Friday morning. Southern trains are not affected.
Thameslink
Tuesday to Thursday mornings. Buses replace Thameslink trains between Three Bridges and Brighton from about 00:25 until 05:05.
Friday morning. Buses replace trains between Three Bridges and Brighton from 01:25 until 05:05.
Before you travel
National Rail advises checking your journey in its Journey Planner and allowing extra time, as replacement buses may be busier than usual. Pick-up and drop-off points are shown on station signage and on the Find a Station page.
A longer closure follows on Sunday 29 November, when no trains run between Three Bridges and Brighton, Hove or Lewes. See our guide to the Brighton Main Line closures on 29 November and in February 2027.
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