N4 Collooney to Castlebaldwin Road Development Project (Design & Build Contract)

Tender description

It is currently anticipated that some or all of the following works will be included in the scheme. The proposed scheme involves the realignment of approximately 14.71km of the N4 in Co. Sligo passing through the townlands of Collooney, Toberbride, Mullaghnabreena, Ardcurley, Cloonamahan, Doorly, Knocknagroagh, Drumfin, Cloonlurg, Carrowkeel, Carrownagark, Kingsbrook, Aghalenane, Ardloy, Springfield, Tawnagh, Cloonymeenaghan, Sheerevagh, Cloongad, Drumderry, Castlebaldwin, Cloghoge Upper and Cloghoge Lower. Approximately 13.82km of the proposal consists of a Type 2 Dual Carriageway commencing at the existing N4/N17 roundabout in the townland of Collooney/Toberbride and extending to a proposed roundabout in the townland of Castlebaldwin. The Proposed Road Development shall tie back into the existing N4 to the south of the aforementioned roundabout with a Standard Single Carriageway alignment measuring approximately 0.89km in length before its conclusion in Cloghoge Lower Td. The Scheme includes the following elements of infrastructure • 1 compact grade separated junction • 2 roundabouts on the mainline • 3 roundabouts on the local road network • major structures including overbridges, underbridges, piled embankment, river bridges, retaining walls and noise barriers • culverts • utility diversions, • ITS provision • pedestrian and cyclist facilities • earthworks including soft ground and karst • drainage works including the provision of wetlands • ancillary road works • traffic management The Scheme will have ecological, noise and visual mitigation requirements and include landscaping and accommodation works. The Environmental Statement associated with the Scheme can be found at the following link. http://www.sligococo.ie/N4/EnvironmentalImpactStatement/