Seaford line upgrade

We're replacing old signalling between Lewes and Seaford with more reliable technology to reduce delays for passengers.

This is part of our ongoing investment in the Brighton Main Line and the railway on the south coast.

The signal boxes at Lewes, Newhaven Town and Newhaven Harbour will close and the signalling control of the line move to our state-of-the-art route operating centre at Three Bridges.

The project will also increase the number of trains able to use the diversionary route for London/Haywards Heath – Brighton services via Lewes, to three trains per hour, helping to move triple the number of passengers in times of planned or unplanned disruption between Brighton and Keymer Jct.

Line closures

Commissioning of the signalling equipment, when the old equipment is turned off and the new switched on, will take place from Thursday 7 March - Sunday 10 March 2019, requiring the closure of all routes via Lewes.

Over the four-days services will operate east of Eastbourne, via Hampden Park but not west of Eastbourne, via Hampden Park.

Additional weekend closures of the railway in the Lewes area will take place on:

  • Saturday 15 December 2018
  • Saturday 19 – Sunday 20 January 2019
  • Sunday 3 February 2019
  • Sunday 17 March 2019

Keeping you informed

We will be working with Southern on a passenger communications campaign to ensure all passengers affected by the closures have the information they need to plan ahead. Details of alternatives will be published as soon as they’re available.

Contact us

If you’re interested in finding out more about Seaford line upgrade please contact us by visiting our contact us page or by calling our 24-hour national helpline on 03457 11 41 41.