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L-Shaped Sea Walls Designed and Made by Rocla

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Precast manufacturer Rocla
Builder Lucas Total Contract Solutions
Engineer Kellogg Brown & Root
Client City of Charles Sturt Council

 

When project consultant KBR needed a fast construction solution for the West Beach Rock Wall Restoration project in South Australia, Rocla provided one with customised Rocla designed precast cantilever wall panels.

Precast integral to success of rockwall

Australia’s coastlines are under threat. They are being eroded to the extent that receding shorelines are threatening seaside cities, suburbs and towns. With 85% of our population living within 50 kilometres from the coast and an increase in coastal development, the threat is real. Approximately 10 kilometres from the city of Adelaide, West Beach is experiencing extreme shoreline erosion, and it’s affecting the local community.

West Beach community under threat

According to the City of Charles Sturt Operations Engineer Mark Chittleborough, environmental impact in recent years has damaged the structural integrity of the existing West Beach Coastal Seawall. The original Seawall was constructed in 1973, with the purpose of protecting nearby assets including car parks, the West Beach Surf Life Saving Club (WBSLSC), domestic properties, public amenities and tourist areas. Major storms in May 2015 and May 2016 prompted the question of whether the Seawall had reached the end of its useful life. Slumping in some areas, the existing Seawall was posing a threat to the safety of those using the area. Along with erosion of the Seawall, both sand management and the reinstatement of the Coast Path required attention.

Precast adds structural integrity
To address the issues, council engaged engineers Kellogg Brown Root to design a rock wall that would improve the durability of the shoreline during severe storm events. This design has taken multiple factors into consideration, such as the surrounding amenities of the location, as well as the residents who live close by. Integral to the design is a series of precast L-walls manufactured by National Precast member Rocla. The L-walls measured 2000mm by 2800mm. Locally supplied from the precaster’s Edinburgh factory, the precast elements were selected to enhance the structural integrity of the design.  (www.nationalprecast.com.au)

https://www.charlessturt.sa.gov.au/development-and-infrastructure/major-projects/west-beach-rock-wall

Photos:  https://www.google.com/search?q=west+beach+rock+wall&safe=active&sxsrf=ALeKk016wCKamRKvjXae0MbSuY0aAArzUw:1618316014450&tbm=isch&source=iu&ictx=1&fir=4AeQjREeZSAFtM%252Cc6Nuly8Hdm1FXM%252C_&vet=1&usg=AI4_-kSle7qNGmAi6JM22SO3-HDoAGwTXw&sa=X&ved=2ahUKEwiqrrP5mPvvAhXIzzgGHeMaCZwQ9QF6BAgOEAE#imgrc=tzAO_qWTHjUDaM

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