The rail line between Grand Canal Dock and Sydney Parade stations remains closed this afternoon, until further notice.
It is due to flood damage on the track resulting in serious disruption to southside DART and Rosslare/Gorey rail services.
DART services are operating from Howth/Malahide to Grand Canal Dock and from Sydney Parade to Bray/Greystones.
Dublin Bus said that it will accept rail tickets for customers affected.