The West Coast main line north of Carlisle will remain closed for several days after eight feet of water flooded the railway.
Around two miles north of Carlisle station, the water level has reached it's peak at eight feet deep but is not expected to clear until Tuesday.
A full assessment of the damage will take place as soon as the water recedes and everything done to reopen the railway as quickly as possible. A number of complex electrical substations are currently submerged and will have to rebuilt once it is safe to do so.
Passengers should check www.nationalrail.co.uk or with their train operator for the latest information before travelling by rail.