Ireland plans four-tracking of the Dublin–Malahide rail line
- Location
- Dublin / Fingal, Dublin Connolly–Malahide route (Northern Line) · 🇮🇪 Ireland
- Project
- FourNorth — upgrade of Dublin Connolly–Malahide from two to four tracks
- Investment
- Cost estimates diverge: RTÉ reports 'hundreds of millions of euro', the Irish Times describes it as a billion-euro project; Iarnród Éireann gave no figure in its announcement
- Status
- Early planning/options phase, public consultation announced for late 2026
On 24 July 2026 Iarnród Éireann announced the 'FourNorth' programme: Ireland's busiest rail corridor between Dublin Connolly and Malahide is to be widened from two to four tracks to create capacity for DART, Northern Commuter, Belfast Enterprise and freight services. Additional tracks alongside the existing twin-track railway are planned, together with passing loops and turnback facilities at Mosney, Skerries, Malahide and Clongriffin. The scheme is at an early options and design stage; an emerging preferred option is to go to public consultation in late 2026. Planning is jointly funded by the Department of Transport and the EU's Connecting Europe Facility. Cost figures diverge (see investment volume); Iarnród Éireann itself gave no number.
Source: irishrail.ie ↗ · Archived copy ↗
Evidence: one source · archived copy saved · How well sourced is Eurotrack?
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