Updated 1 September 2026 at 12:58 BST
National Rail says passenger services between Haywards Heath and Lewes resumed on Tuesday 1 September after recovery work, repairs and successful testing following the derailment on 13 August. Journey planners have been updated, but passengers should still check before travelling.
Derailment: around 15:54 on 13 August |
People aboard: around 150 |
Route status: open from 1 September
Current travel position
National Rail’s update at 07:04 BST on Tuesday 1 September says the Haywards Heath–Lewes railway is open to passenger services after the train’s recovery, railway repairs and successful test runs. Journey planners are updated; passengers should still check the service they intend to catch before travelling.
The reopening restores the Eastbourne route via Lewes. It is separate from planned overnight engineering work, which still affects some late and early services as set out below.
Network Rail and Southern first set out the 1 September target in their 20 August recovery update. The railway reopened after that recovery and repair programme was completed.
This is separate from the planned Lewes–Eastbourne engineering work: replacement buses are listed between those stations from about 00:30–03:00 on 2–4 September. Check the notices for the relevant route and departure.
What is confirmed
Train 1F34, the 14:24 Southern service from London Victoria to Eastbourne, derailed at around 15:54 on 13 August, approximately one mile north of Lewes station between Cooksbridge and Lewes Tunnel.
The eight-carriage train comprised two four-carriage Class 387 electric units. The rear three carriages derailed and overturned, coming to rest on the railway embankment; the front five remained on the rails.
Around 150 people were aboard. The Rail Accident Investigation Branch says 30 people were injured and 20 required hospital treatment, some with serious injuries. No deaths have been reported. A British Transport Police update on 14 August said two seriously injured people remained in hospital at that point and their injuries were not considered life-threatening. We found no later official patient-status update. See the RAIB investigation update and BTP update.
What investigators have found so far
RAIB’s preliminary data shows the train was travelling at about 65mph as it approached the derailment point, where the maximum permitted speed was 70mph. The driver applied the brakes as the train passed the derailment point.
Marks on the rails are consistent with wheels climbing over them. Train-camera footage shows that a track-geometry irregularity existed immediately before the derailment, and RAIB found evidence of earlier track-maintenance activity. It also received reports of rough riding at the location from passengers on preceding trains.
The weather was hot and dry, with the nearest weather station recording about 27°C. Investigators found evidence of earlier embankment movement, but currently no evidence that a significant embankment slip happened before the accident. These are investigative observations, not a confirmed cause. RAIB remains formally investigating and will publish its conclusions later.
Recovery work
RAIB released the site to Network Rail on 15 August. Network Rail’s 20 August update said the first overturned carriage was being lifted. The recovery programme involved removing the train, replacing damaged track and infrastructure, repairing the embankment and signalling, and testing the railway. National Rail’s 1 September notice confirms that the line is open.
The emergency response was substantial. South East Coast Ambulance Service says it deployed more than 50 staff to the scene, supported by more than 20 colleagues in its control rooms. Its official statement does not say that more than 20 ambulances attended, as an earlier version of this report incorrectly stated.
If you were affected
Anyone who was on board, witnessed the derailment or has relevant information can contact British Transport Police. Passengers affected by cancellations should keep tickets and receipts and use Southern’s compensation process where eligible.
Correction and sources
This report was substantially corrected on 23 August 2026 and its travel advice was updated at 11:06 BST on 24 August 2026 using primary information from RAIB, Network Rail and Southern, National Rail, British Transport Police and South East Coast Ambulance Service. The previous version incorrectly described the train as Class 377, understated the confirmed casualty total, overstated the ambulance deployment and retained expired travel advice. Travel advice was refreshed again after National Rail’s 07:04 BST update on 1 September confirmed that the line was open and journey planners were updated.
Lewes derailment: FAQs
Which train derailed?
The 14:24 Southern service from London Victoria to Eastbourne, formed of two four-carriage Class 387 units. It derailed at around 15:54 on 13 August 2026 north of Lewes.
Was anyone killed?
No deaths have been reported. RAIB says 30 people were injured and 20 required hospital treatment.
Are trains running to Eastbourne?
Yes. National Rail says the Haywards Heath–Lewes route is open to passenger services. Separate overnight engineering work still affects some late and early trains, so check live journey advice.
What caused the derailment?
The cause has not been established. RAIB is investigating the track, embankment, maintenance history, train, operations and weather. Its preliminary observations should not be treated as a final conclusion.
When will the line reopen?
The line reopened to passenger services on Tuesday 1 September after repairs and testing.
Sources / Checked 1 September 2026 at 12:58 BST: National Rail’s 07:04 BST reopening notice, Southern service updates and National Rail’s separate 2–4 September engineering notice. This update refreshes operational travel advice; historical investigation and casualty information remains attributed to the dated official sources above.