Network Rail engineers are on target to complete work to rebuild three collapsed sections of railway in Sussex by Monday.
Landslips at Stonegate, Whatlington and Battle have meant a month of disruption for passengers on the line from Hastings to Tonbridge.
After four weeks of round-the-clock working, Network Rail has repaired the slips to the extent that trains will be able to run along the whole length of the route from the start of service on Monday morning.
Network Rail’s route managing director, Fiona Taylor, said: “This has been a very difficult time for passengers. We have now restored the track across the most serious of the landslips, at Stonegate, after delivering more than 10,000 tons of stone to repair the damage.
By Monday Southeastern will be able to get their trains running again across all three repaired slips. There will need to be more work on the route in the coming months, although very much less disruptive, as we get to grips with the remaining damage at other locations.”