Upgrades to the Mindarie breakwater valued at nearly $7 million have been completed to stop rocks and water spilling over on to a nearby residential street and improve marina safety.
The upgrades completed by the City of Wanneroo strengthened and increased the size of the breakwater structure.
Originally built in 1988, the barrier underwent phase 1 maintenance works in 2017/18 that focused on a 160m length of the Mindarie breakwater, which experienced significant wave overtopping and displacement of rock debris on to the road during storms.
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The project cost close to $7m and was supported by a $3.3m contribution from the Federal Government’s Coastal and Estuarine Risk Mitigation Program undertaken to secure the structure for the next 50 years.
The work was undertaken by WA Limestone to increase and widen the crest level of the structure resulting in less wave overtopping and associated safety issues, with reworking of existing rocks and placement of new material to increase the height.
These structures provide protection for nearby infrastructure including parking, roads, pedestrian pathways, residential properties and commercial businesses.
It also provides calm marina conditions for private berths and a public boat ramp.
Wanneroo mayor Linda Aitken said the upgrade would ensure that the structure remains safe and functional for many years to come.
Upgrades also included the installation of new car parking, drainage, footpaths, kerbs and vehicle safety barriers.