FCC/084/19 - Construction of a new 2-span bridge over N3 adjacent to existing Snugborough Road Bridge

The proposed works include: - Construction of a new 2-span bridge over N3with pile foundation immediately adjacent to existing Snugborough road bridge inclusive of footpath and cycle track. - Construction of a new 2-span pedestrian/cyclist bridge (with potential vehicle loading) with pile foundation to the north of Snugborough road. -Construction of 2 new pedestrian underpass. One underpass is located to the north of existing pedestrian underpass, and another underpass is located 30m south of the re-aligned N3 on-ramp. - Construction of Reinforced Earth Wall -Contractor designed elements to include design of precast concrete underpass structures, reinforced earth walls, and bridge beams. - Modify existing bridge to one-way traffic flow southbound. - Remove and replace existing bridge parapet with class H2 parapet. - 9C main sewer diversion, with peak flows over 1000l/s. Works include construction of approximately 150m of new 1.2m dia new sewer line, constructing new chambers, modification of existing chambers and constructing chamber on existing sewer line. Over-pumping works will be required. - Lane widening of the Snugborough Road northeast and southwest approaches to the interchange. - Lane widening of the L3020, Blanchardstown Main Street (R806) and N3 On-Ramp. - Realign the N3 eastbound on ramp. - Upgrade Waterville roundabout into a signalised junction. - Provision of improved cyclist and pedestrian facilities. - 500mm dia AC watermain diversion - Utilities diversion including BT, Eir, Irish Water, Smart Telecom, Virgin Media, gas distribution main. -Drainage works including construction of detention basin, and underground water attenuation tank. - Provision of public lighting, signage, CCTV road lining and landscaping associated with the above works.

Works

21/08/2019 16:00:00

45233100-0  Construction work for highways, roads
45221111-3  Road bridge construction work
45221211-4  Underpass
45232440-8  Construction work for sewage pipes
45233126-8  Grade-separated junction construction work