Swansea Bridge Cathodic Protection Work

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Swansea Bridge at Lake Macquarie in New South Wales is an opening bridge to allow vessels to pass underneath and was constructed in the mid 1980’s. Since then, harsh marine exposure conditions had resulted in corrosion and bridge deterioration. A solution was needed to increase the longevity of the bridge.

Working with the Roads and Traffic Authority NSW (RTA), GHD helped develop a long-term, environmentally-sustainable durability solution to be adopted which would increase the bridge’s longevity plus minimise community disturbance and achieve best value for money outcomes.

The team adopted Cathodic Protection (CP) as the most favourable option to reinforce the popular thoroughfare. Concrete CP is a state of the art technique utilising DC electric current to combat reinforcement corrosion. CP to the Swansea Bridge is one of the very few in the world installed to an opening bridge.

GHD worked closely with the RTA in delivering the options analysis and final design for the CP solution. A GHD team also undertook the role of technical advisors during the construction phase of the project.

This work on Swansea Bridge received a high commendation in the Australian 2010 Engineering Excellence Awards - Engineering for Regional Communities category.

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Materials Technology

Structures

We have a strong reputation, a record of accomplishment in providing world-leading technical support and advice for all areas of structural design and assessment.

Demand for GHD’s services continues to grow as the company completes and advises on a number of significant structural projects for some of the world’s tallest buildings, inlcuding Al-Bidaa Tower, Dubai Tower and the Doha Convention Center and Tower in the United Arab Emirates.

Swansea Bridge Cathodic Protection Work

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Materials Technology

Structures

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