Sydney Harbour Bridge Cycle & Pathways

The Project

Project Details

The Sydney Harbour Bridge stands as one of the world’s most iconic structures, with a 2km conjoined cycle and pathway spanning both sides of the bridge to link Sydney’s central business district with the Northern suburbs. This critical pedestrian and cycling infrastructure required comprehensive restoration work to address cracking and deterioration while maintaining public access to this heritage landmark. The project demanded high-performance waterproofing capable of protecting the structure while withstanding constant pedestrian and cyclist traffic in a highly exposed harbour environment.

To meet the highest performance and sustainability standards, the project focused on:

• Delivering durable crack repair and waterproofing protection for deteriorated walkway and cycleway surfaces on a heritage-listed structure
• Providing UV-resistant, trafficable systems capable of withstanding continuous pedestrian and cyclist traffic in exposed harbour conditions
• Ensuring shortened construction periods to minimise disruption to this heavily utilised public infrastructure linking key Sydney precincts

Envirosystems Solution

Envirosystems was contracted to repair and reinstate the cracked walkway and cycleway surfaces on the Sydney Harbour Bridge main deck, and to prepare and apply a UV-resistant trafficable waterproofing system to the exposed areas. The comprehensive specification detailed crack repair procedures, substrate preparation, priming and installation of the Envirosystems Trafficable Waterproofing Membrane System.

The Enviro Trafficable System represents an innovative solution within the Envirosystems product range, providing a hard-wearing, UV-stable waterproof membrane with inherent slip resistance. Capable of withstanding full vehicular traffic, the system proved uniquely suited to this external waterproofing application on an iconic landmark structure. The system’s performance characteristics enabled a shortened construction period, minimising disruption to the thousands of pedestrians and cyclists who traverse the bridge daily while delivering long-term protection for this heritage infrastructur