The detail

Now a feature bridge, epitomising modern Dublin, and voted ‘Engineering Project of the Year’ in the Engineers Ireland Excellence Awards, its early inception began with the construction of reinforced concrete abutments of each quay wall. Fabricated off-site and transported fully assembled by barge, the superstructure was then counter ballasted on-site in the form of heavy weight concrete before being mounted on the support pier.

Once positioned accordingly, the final tuning ballast was installed and the cable-stays tensioned so that the superstructure, now weighing 5700 tonnes, was accurately balanced and subsequently rotated into its closed position by our expert team. The complex solution was finalised with the completion of a high-specification control room building, which is linked via ducts to the bridge’s hydraulic rotational mechanism.

Lasting impacts emanating from this project, for the Council, commuters and pedestrians alike, include improvements to traffic circulation and public transport while acting as a catalyst for future regeneration.