Ireland - Construction work for highways, roads

Description

The proposed works include:— construction of a new 2-span bridge over N3 with 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 30 m 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 1 000 l/s. Works include construction of approximately 150 m of new 1,2 m 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,— 500 mm 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.

Opportunity closing date

21 August 2019

Value of contract

£5m-50m