Levee would be one of four projects at Patonga
Patonga would be the focus of four projects under the Hawkesbury Nepean River System Coast Management Plan.
These would include building a levee bank to protect around 40 houses in Patonga from sea level rise.
The project would cover "levee feasibility, design and implementation".
"Assessment of future sea level rise shows that parts of Patonga could experience king tide flooding under a 0.5 metre sea level rise scenario, with much larger areas impacted under a one metre scenario."
The project would see Central Coast Council "explore the feasibility of constructing a vegetated earthen levee along Patonga's western foreshore to mitigate future flood risks.
"This levee would run from Meroo Ave to Jacaranda Ave" which would provide long-term protection for the Patonga community and its infrastructure.
A second project would implement a sand management plan for both Patonga Beach and Patonga Creek.
"Key elements would include studying the local sediment transport processes to understand the quantity and direction of sediment movement."
Subsequently, a sand redistribution program would be developed, with the potential periodic dredging at the creek entrance for sand sourcing.
"The purpose of the plan would be to increase the sand buffer in front of assets and infrastructure along Patonga Dr and to improve the resilience of the area coastal erosion hazards."
A third project would create a foreshore masterplan for Patonga Creek.
"This master plan would provide a holistic vision for the creek foreshore, covering the areas extending from the creek entrance, north to the edge of Patonga township," according to the draft Program.
"The plan would incorporate coastal protection, riparian management, safe foreshore access, dingy/watercraft storage, and coastal hazard mitigation strategies."
The fourth project would be repair and renewal of the Patonga Seawall.
It would "undertake the repair and renewal of the Patonga Seawall to ensure it effectively protects the coastline, surrounding infrastructure, and community from coastal erosion, storm surges, and rising sea levels.
"This initiative would address current structural deficiencies and future-proof the seawall to meet the challenges of a changing climate."
The draft program is open for public comment until Sunday, November 24
A feedback survey can be completed online at http://penne.ws/5WjP5r and suggestions can be submitted online at http://penne.ws/FYquTy.
SOURCE:
Website, 25 Oct 2024
Hawkesbury Nepean River System Coastal Management Program