JAMES JOYCE BRIDGE – DUBLIN
The James Joyce Road Bridge spans the River Liffey between Ellis Quay on the North of the river and Usher’s Island on the South. The bridge consists of a single span composite steel concrete deck, suspended from a pair of inclined steel tied arches.
The main longitudinal deck elements consist of constant depth box sections, which vary in width, being greatest at mid span. Transverse girders span between, and cantilever outside the longitudinal girders. The overall span of the bridge is 41 metres. The maximum width of the bridge is 33 metres. The bridge accommodates four lanes of traffic together with pedestrian walkways and seating areas.
The main elements of the Contract were as follows:
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Local reduction in height of the existing quay walls to facilitate construction of the abutments and Construction of temporary cofferdams in the river at each abutment and a temporary platform on piled foundations in the river for offices, storage and plant access.
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Installation of 900mm diameter bored cast in-situ concrete piles, construction of pile caps and abutments and construction of a temporary bridge to support the bridge steelwork prior to installation of the inclined steel arches and de-propping of the completed structure. Fabrication and installation of the bridge box girders, carriageway girders and cross girders and fabrication and installation of the steel arches and arch cables and tensioning of cables.
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CLIENT
Dublin City Council
LOCATION
River Liffey, Dublin
VALUE
€9 million
PRINCIPAL ENGINEER
Roughan & O’Donovan
CONTRACT PERIOD
March 2001 – May 2003
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