Wanneroo Council endorses coastal hazard plan to manage risks to 2030

The City of Wanneroo has spent about $8.64 million on coastal protection works since 1999, mostly in Quinns Rocks.
The City of Wanneroo has spent about $8.64 million on coastal protection works since 1999, mostly in Quinns Rocks.

A PLAN to manage future erosion of the City of Wanneroo’s 32km coastline received unanimous council endorsement last night.

The final Coastal Hazard Risk and Adaptation Plan (CHRMAP) identified areas of coastline that were vulnerable to coastal erosion due to the effects of climate change, and outlined a plan to monitor and manage areas at risk.

In moving the recommendation, Deputy Mayor Nat Sangalli said the plan would help the City identify and manage coastal hazards, which would benefit coastal communities.

The first component of the plan involved a coastal hazard vulnerability study investigating the potential impact of coastal erosion and sea level rise on the City’s foreshore areas over the next 100 years.

The second component considered community feedback to determine how the community uses and values the foreshore, as well as appropriate and sustainable strategies to manage the most vulnerable coastal areas.

Consultation included letters sent to residents potentially affected by sea level rise, and a series of workshops and information sessions.

A map of locations studied as part of the Coastal Hazard Risk Management and Adaptation Plan.

Adoption of the CHRMAP report marked the beginning of the implementation phase to 2030, including 13 recommendations.

Those included improving the coastal monitoring program, increased community education and improved notification of coastal risk for current and future landholders via property titles.

The report also recommended improved sand replenishment programs, understanding the economic value of environmental assets, and analysis of management options for highly vulnerable areas such as Yanchep and Two Rocks.

Another recommendation was to assess how the City’s planning and emergency controls aligned with coastal erosion risks.

Mayor Tracey Roberts said the City has been working to identify solutions for coastal erosion for several years.

“Coastal erosion is a significant concern for our community and future generations,” she said.

“This final CHRMAP report will provide valuable direction for future planning decisions.

“In addition to existing infrastructure and assets, there is significant demand to further develop along the City’s coastline.

“It is extremely important to understand what the potential impacts of rising sea levels are, and plan to mitigate the risks into the future.”

According to the council report, the City has spent about $8.64 million since 1999 on coastal management works, with most of the work done in Quinns Rocks.

It said the plan could impact on future subdivision in developed coastal suburbs and new or proposed developments, as well as redevelopment plans for Quinns Caravan Park and Yanchep Lagoon.

MORE: Plan highlights vulnerability timeframe for coastal suburbs

This project was part funded through a grant from the Department of Planning, Land and Heritage.

For more information, visit www.wanneroo.wa.gov.au/coastalmanagement.