WORK to protect a railway line from a potential landslide is expected to cause another six weeks of disruption to train services.
About 100,000 tonnes of material is being removed from a bank above a stretch of track near Elland.
The line became unsafe after 40 tonnes of trees and earth slid down the bank in the January floods.
Engineers estimate the operation could cost around £4m.
Network Rail, who have been carrying out the work, were criticised for removing large numbers of trees from nearby Reins Wood.
But the company has said the trees must be removed to make the railway safe.
Rachel Lowe, of Network Rail, said: “Work should be finished in six weeks, but if there’s rain it’s going to affect that.
“It’s either remove the trees or close the railway line. If the bank isn’t stable we will have to close it.”
Revised timetables are available, including bus replacement services.
No trains are operating on the section of route linking Huddersfield, Brighouse and Halifax.
A bus will operate this section of the route, with the train continuing the usual journey from Halifax to Bradford.
Leeds to Hebden Bridge via Brighouse services will terminate at Brighouse with a bus service continuing to Hebden Bridge.
At Brighouse, all rail services will use platform one while the rail replacement bus services will stop on the A641 Huddersfield Road over-bridge.
For more information visit www.wymetro.com/News/TravelNews/BrighouseChanges.htm or call National Rail Enquiries on 0845 748 4950.