Freyssinet delivered specialised concrete repair and cathodic protection works for the HMAS Stirling High Level Bridge Repair Project in Western Australia. The project, undertaken for Defence WA, aimed to extend the service life of the structure by protecting the steel reinforcement from corrosion through the installation of both Impressed Current Cathodic Protection (ICCP) and Sacrificial Anode systems. Despite challenging scaffold access, complex rescue requirements, and variable weather conditions, the works were executed to meet stringent Defence standards, ensuring long-term durability and structural integrity.

  • Customer/Owner:
    Royal Australian Navy
  • Engineer
    Wallbridge Gilbert Aztec
  • Works period
    August 2021 - February 2023

Freyssinet Scope

  • Concrete repair works to bridge piers and spans.
  • Installation of ICCP system at specific pier intervals to protect embedded steel reinforcement.
  • Installation of Sacrificial Anode systems along the bridge span for adjacent steel corrosion control.
  • Placement of over 200 discrete anodes, 3,000m of impressed current mesh, and 700m of electrical cables and continuity conductor bar.
  • Installation of permanent reference electrodes with a design life of 75 years and transformer rectifier units (TR units), junction boxes, and associated cabling.
  • Implementation of complex scaffold access solutions and rescue procedures under variable weather conditions.

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