Protecting Gold Coast Beaches

19 Jun 2017 4

GOLD COAST CITY COUNCIL | SPONSORED STORY

Protecting Gold Coast Beaches

Commencing in June and running until October 2017, the Gold Coast will undergo a major beach nourishment project to beef up the amount of sand on Gold Coast beaches above and below the waterline. The sand will be delivered by a dredge at Palm Beach and on the northern beaches between Miami and Main Beach. The project will dredge approximately 3 million cubic metres (about 1200 Olympic swimming pools) of clean sand from our offshore sand supplies and relocate it to the wave breaking zone. The 111 metre long dredge will bottom dump and rainbow to relocate the sand. Bottom dumping releases dredged sand through the vessel’s hull and rainbowing projects the dredged sand from the bow of the vessel.

The increase in sand will increase the city’s protection from storm events that have historically caused big problems over the last few decades. These include tropical cyclone Oswald in 2013. On the Gold Coast, buildings and infrastructure have historically been developed close to the coastline where they’re not only regularly impacted by erosion, but also restrict the natural process of the beach rebuilding itself after storms. Natural sand movement alone will not guarantee the long term protection of Gold Coast Beaches and intervention is required if we are to have sandy beaches along the coastline into the future.

Enhancing the resilience of Gold Coast beaches to withstand storm events is the number one objective of this project. That’s not to say surfing has been forgotten, thanks to the Gold Cost Surf Management Plan this project will consider surfing outcomes too. The way the sand is placed in the surf zone is being designed to replicate natural bar formations or ‘patterns’, to maintain or enhance surfing conditions. Over time, this method will naturally build up the beach as waves move the sand onshore.

Successful nourishment has previously been undertaken on the Gold Coast in the late 1980s early 1990s; and now in 2017. There is more information about Gold Coast beaches than ever before thanks to extensive research and improved technology. Engineers have studied coastal data from wave buoys, beach surveys, camera monitoring and computer modelling. Using this data, real-time wave conditions can inform flexible sand placement patterns which is important when dealing with the Gold Coast’s dynamic coastal environment.

The Gold Coast Beach Nourishment project is part of the Ocean Beaches Strategy 2013-2023 and is a long term solution for the ongoing protection of our beaches from erosion during future storms. For more information about the project, please visit cityofgoldcoast.com.au/gcbeachnourishment, phone 1300 GOLDCOAST, or email beachnourishment@goldcoast.qld.gov.au

Enhancing the resilience of Gold Coast beaches to withstand storm events is the number one objective of this project. That’s not to say surfing has been forgotten, thanks to the Gold Cost Surf Management Plan this project will consider surfing outcomes too.

Enhancing the resilience of Gold Coast beaches to withstand storm events is the number one objective of this project. That’s not to say surfing has been forgotten, thanks to the Gold Cost Surf Management Plan this project will consider surfing outcomes too.

The sand will be delivered by a dredge at Palm Beach and on the northern beaches between Miami and Main Beach.

The sand will be delivered by a dredge at Palm Beach and on the northern beaches between Miami and Main Beach.

The increase in sand will increase the city’s protection from storm events that have historically caused big problems over the last few decades.

The increase in sand will increase the city’s protection from storm events that have historically caused big problems over the last few decades.


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