Berth 4, Dun Laoghaire Harbour

Published 30th August 2022

Berth 4, Dun Laoghaire Harbour project is the refurbishment of an existing disused ro-ro ferry berth (Berth 4) at St. Michael’s Pier in Dun Laoghaire Harbour. The disused Berth 4 was to be upgraded to accommodate the Stena Lynx III ferry.

Waterman Moylan was appointed to plan and manage the refurbishment. A mechanically controlled steel transition ramp spans from a berthing pontoon to the pier. The ramp was badly corroded, and the mechanics were no longer functioning.

Refurbishment works included site applied corrosion protection system to steel frame and tailgate, upgrade / replacement of the ramp and ramp control mechanics and also the refurbishment of the control building.

Damaged greenheart timber fenders along St. Michael’s Pier adjacent to Berth 4 were removed as part of the works and replaced with steel SHS pile sections which were driven 7 metres into the seabed. The embedded SHS piles spanned 15m above the seabed to the pier surface. Compression fenders and rubbing strips were fixed to the steel piles.

Raking fenders to the existing 190 sqm pontoon which serves Berth 4 were replaced as part of the contract works.

Client: Dun Laoghaire Harbour Company