[MainsiteplaceWorksDelivery]:
Dublin
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.