Rottnest Island Berth 4 and 5 Reconstruction

Project Overview

The original Berths 4 and 5 on Rottnest Island were built in 1970 and had reached the end of their serviceable life. Subsequently, they were replaced with new structures that will provide 50 more years of service as the main gateway of Rottnest Island.

The new concrete deck area is 5m longer and almost 5m wider to match the end of Berth 3. The additional length allows for safer clearances for ferry berthing and the extra width will ease congestion in peak times on the jetty.

The project included the demolition of the existing concrete superstructure and supporting steel piles of the existing Main Jetty Berths 4 and 5 and the design and construction of the replacement concrete superstructure with supporting steel piles. The works also included the design and construction of a wave screen along Berth 5 with a return around the end of the jetty.

Fast Facts

  • ClientRottnest Island Authority
  • LocationRottnest Island, WA
  • Year of Completion2022
  • Value$9.5M

Scope of works

The scope of works includes:

  • Demolish and remove the existing fender system
  • Demolish and remove the existing concrete deck and steel piles
  • Local removal and reconstruction of part of the existing breakwater system to allow driving of new piles
  • Detailed design of the new Berth’s 4 and 5 structure complete with services and all ancillary components
  • Supply and install new steel piling
  • Supply and install new wave screen, including waler beams, pile connection and new sheet pile wall
  • Supply and install new precast reinforced concrete headstock beams and new reinforced concrete precast deck panels
  • Supply and install new fender systems
  • Supply and install a new sacrificial cathodic protection system
  • Design, supply and install berth fixtures and fittings

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