Passengers are being reminded of changes to services between Manchester and Preston via Bolton as Network Rail works to complete the upgrade of the railway.
There will be a nine-day closure of the railway, from 25 August until Sunday 2 September, when buses will replace trains.
Engineers will also continue mid-week overnight working and weekend working until Sunday 4 November.
Martin Frobisher, managing director for Network Rail’s London and North Western route, said: “Our Manchester-Preston upgrade is part of the Great North Rail Project, the rail industry’s plan to transform train travel for customers across the North through track and train improvements.
“This short-term disruption is necessary to complete these vital upgrades and it’s important to remember the long-term improvements which will be delivered. In future electric-powered, greener, faster, more frequent, more spacious, more reliable trains will become the norm through the Bolton corridor.”
The Manchester-Bolton-Preston upgrade covers over 25 miles of track and infrastructure upgrades. It has involved the widening and rebuilding of Farnworth Tunnel, remodelling of tracks and platforms through Chorley and Bolton stations, the renewal of 13,883m of track, replacement of 93 signals, and the laying of 236,000m of cables.