Pearse Street and Tara Street train stations will be closed due to works this weekend.
DART services will run between Greystones and Grand Canal on the Southside, and Connolly and Howth on the North side of the line.
Dublin Bus will honour rail tickets for the duration of the maintenance, and also cover transfers for Rosslare Intercity passengers.
Irish Rail has apologised for any inconvenience caused.
Pat Devlin Calls Time After Four Decades With Bray Wanderers
Wicklow Musician Earns National Business Award For Merging Traditional Culture And Wedding Celebration
Wicklow CYPSC Launch Detailed Project Underlining Importance Of Sleep For Children
Visit Wicklow Digital Campaign Takes Home Prestigious IDI Award
Wham Bram Leaves Wicklow All Shook Up As Power Outages Hit Garden County