Network Rail have apologised for any disruption caused by the closure of costal rail lines in Cumbria.
Last week's storm has left many of the routes and stations damaged.
All routes between Barrow and Workington have been re-opened after Network Rail suspended travel along them to assess and repair the damage.
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The harrier, named Manu, is one of two chicks monitored and protected by the Northumberland Hen Harrier Protection Partnership.
Three flood warnings remain in place for Cumbria after the county was hit with a third of the rainfall that fell during Storm Desmond.
There are three flood warnings and seven flood alerts currently in place across the county.