Roughan & O’Donovan assisted lead designer, Santiago Calatrava, with the civil structural engineering aspects of the bridge design and undertook the Category III check.
The bridge spans 40m across the River Liffey and carries both pedestrian and vehicular traffic, 2 lanes in both directions.
It is a composite steel and concrete deck suspended from a striking pair of inclined outwards, curved in plan, tied steel arches by high tensile steel cables.
The width changes along the length of the bridge, with the pedestrian walkway cantilevering 6m at mid span and 3m at the abutments. The maximum width of the bridge is 33m at mid-span.
The bridge deck is slim and a glass parapet and footpath draws the eye from the visible part of the deck towards the clean, clear parapet which runs along the edge of the pedestrian walkway.
The bridge is softly illuminated by recessed lighting at night.
40mTotal span of the bridge
€5.6mTotal value of the bridge
2003Year the bridge opened to the public
The city centre location, narrow quays, river tides and geotechnical conditions were among the many design and construction constraints faced by our team.
- Bridge engineering design
- Independent design checker
- Contract administration