Network Rail is investing £3m to replace 5,000 yards of ageing and worn out railway track on the Cumbrian coast.
This upgrade is part of the Great North Rail Project designed to give much needed investment to rail projects in the north of England.
The project will affect the line between Silecroft and Bootle in West Cumbria, and is expected to provide better and faster journeys for the area.
It will also help by removing a temporary speed restriction currently in place on older sections of the track.
It's advised that there will be some Sunday travel disruption between Whitehaven and Millom while the works go on
There will be a temporary bus service provided.