The national primary route N4, Dublin to Sligo is a strategic corridor from Dublin to the northwest and border counties and is approximately 198km in total length. The route passes through Dublin, Kildare, Meath, Westmeath, Longford, Leitrim, Roscommon and Sligo. It is recognised as being particularly important in enhancing accessibility to some of the most peripheral areas in the northwest and west of the River Shannon.



  • EU Sturctural Fund
  • European Union