Construction of the wall by APR Manufacturing Group began in 2020, with over 105,000kg of reclaimed non-treated timber and recycled plastic being used in the build.

APR said the recycling effort was equivalent to repurposing over one million two-litre plastic milk bottles.

Around 3680 cubic metres of plastic were diverted from landfill as part of the project, which aims to protect the coastline against future erosion.

Erosion at Semaphore South has already been an issue, with a severe storm in 2016 causing widespread damage and vegetation loss.

The new retention wall is replacing a previously damaged fence. Photo: supplied

Replenishment works were undertaken in 2020, with sand moved from north of Largs Bay jetty to rebuild the dunes at Semaphore.

APR CEO and InDaily 40 Under 40 alumni Ryan Lokan said the company’s work with Port Adelaide Council in building the new wall was “a testament to what can be achieved when local governments and businesses collaborate towards a sustainable future”.

“We are proud to play a critical role in the circular economy, showcasing how recycled materials can be effectively utilised to both preserve our environment and enhance our community,” Lokan said.

“Our current challenge is getting key decision makers and stakeholders to consider the more sustainable option when it comes to infrastructure projects within local communities.”

Ryan Lokan, CEO of APR, said he was “proud to play a critical role in the circular economy”. Photo: Morgan Sette.

The new wall is chemical-free, durable and low maintenance, playing a part in ongoing restoration works to repair coastal erosion.

Founded in 2004, APR Composites designs and manufactures composite products for a range of industries, using recycled and reclaimed materials to produce 100 per cent Australian composite products.

“This project is a prime example of how we can transform our approach to community infrastructure, ensuring that sustainability and functionality go hand in hand,” Port Adelaide Enfield mayor Claire Boan said.

A spokesperson from Central Adelaide Waste and Recycling Authority said the project was a “prime example of how all parties involved have worked seamlessly to reimagine the lifecycle of recyclable materials”.

“This project not only makes a significant advancement in managing coastal erosion but also sets a benchmark for future projects that aim to combine ecological preservation with community development,” the spokesperson said.