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Welcome to N4 Realignment

Collooney to Castlebaldwin Road scheme in Co. Sligo

The N4 is the main Inter-Urban link between Dublin and the North West Region.

The N4 Collooney to Castlebaldwin Road Scheme was included in the Building on Recovery: Infrastructure and Capital Investment Capital Plan 2016-2021, as a key priority in the roads programme which will support economic growth. The Plan identified it as one of the “critical gaps” in our existing infrastructure, which needs to be upgraded.

A core priority under Project Ireland 2040 National Planning Framework is the essential requirement to enhance and upgrade accessibility between urban centres of population and their regions, in parallel with the initiation of compact growth of urban centres. This has a crucial role to play in maximising the growth potential of the regional urban centres, one of which is Sligo, and the economy as a whole. The delivery of the N4 Collooney to Castlebaldwin Scheme is listed as one of the key Schemes to be delivered under Strategic Outcome No. 2 ‘Enhanced Regional Accessibility’ of the National Development Plan.

The N4 Collooney to Castlebaldwin Road Project will provide just under 14km of Type 2 Dual Carriageway, and just under 1km of Single Carriageway on the National Road Network, linking the existing N4 dual carriageway at Collooney to the Curlews By-Pass, just south of Castlebaldwin village. This will complete the upgrade of the N4 to modern standards in County Sligo.

Delivery of this Scheme will:

  • Significantly improve safety, by reducing the number of fatalities and injuries on the N4 and the existing surrounding local road network.
  • Reduce inter-urban journey times and improve journey time reliability, which will remove barriers to economic development of the region.
  • Provide a corridor of transport infrastructure that will encourage and support existing investment and employment in Sligo and the North West.
  • Improve Road based Public Transport, quality of life for residents and improve accessibility to work, education and other activities.
  • Improve conditions for pedestrians and cyclists wishing to access local services.
Need more information? 071 9167299