N17 / R320 Lisduff Junction Upgrade

Tender description

Provision of a compact grade-separated junction on the N17 national road at Lisduff, Claremorris, Co Mayo. The proposed junction will facilitate all traffic movements between N17 National Primary road, R320 Regional Road and L5565-0 Meelick More Road and includes the following: - Provision of overbridge over existing N17; - Realignment of existing N17 West / R320 junction; - Provision of N17 East junction with compact connector road to proposed eastern roundabout; - Provision of link road including overbridge between existing R320 regional road and proposed eastern roundabout; - Provision of link road to L5565-0 Meelick More Road; - Provision of 2 no. roundabouts; - Provision of local collector road for properties on L5565-0 Meelick More Road, and - Closure of the existing N17 / L-5565-0 Meelick More Road junction. Lot 1: Provision of a compact grade-separated junction on the N17 national road at Lisduff, Claremorris, Co Mayo. The proposed grade-separated junction will facilitate all traffic movements between N17 National Primary road, R320 Regional Road and L5565-0 Meelick More Road and includes the following: - Provision of overbridge over existing N17; - Realignment of existing N17 West / R320 junction; - Provision of N17 East junction with compact connector road to proposed eastern roundabout; - Provision of 0.31 km link road including overbridge between existing R320 regional road and proposed eastern roundabout; - Provision of 0.54 km link to L5565-0 Meelick More Road; - Provision of 2 no. roundabouts, on existing R320 Regional Road and at junction of N17 East compact connector, L5565-0 Link and R320 Link; - Provision of local collector road for properties on L5565-0 Meelick More Road with a junction on realigned L5565-0 road, and - Closure of the existing N17 / L-5565-0 Meelick More Road junction. The Works will include, but are not limited to the following; - Erection of site offices, establishment of site compounds, welfare facilities and the like; - Site clearance; - Erection of boundary fencing in and adjacent to properties; - Installation of vehicle restraint systems; - Installation of drainage systems, including attenuation ponds, culverts, headwalls and outfalls; - Earthworks, including excavation and disposal of unacceptable material; - Pavement works; - Kerbs, footways and paved areas; - Public lighting at the two roundabouts - Installation of signs, road markings and associated equipment; - Accommodation works including construction of vehicular accesses and ancillary accommodation works; - Landscaping works; - Diversion of services/utilities; - Environmental mitigation measures; - Traffic management and other ancillary works. The works will involve working on and adjacent to a live National Road (N17)