More than 10 Olympic sized swimming pools of flood debris has been diverted from landfill and reused, saving $2.4 million following a collaborative effort between the NSW Environment Protection Authority (EPA) and Richmond Valley Council.

The debris, made up of soil and vegetation from landslips during the 2021-2022 floods, was collected from the damaged Naughtons Gap Road and repurposed for the Northern Rivers Rail trail.

More than 12,000 tonnes of the material has now been placed along both sides of the trail to provide added stability and improve safety for cyclists.

NSW EPA Executive Director Operations, Jason Gordon, said this is a great example of what can be achieved when we all work together.

"Severe weather events often generate significant waste volumes, and it can be challenging and costly to clean up. Rather than this material being dumped into a landfill, we've come up with a joint solution by reusing it to improve an important community and tourism asset.

"We know the impact the floods left on Northern Rivers communities is still being felt today but we are committed to continuing to work with Council and other agencies to ensure projects like this one come to life and help the region thrive once again."

Richmond Valley Council Mayor, Robert Mustow said right from the word go the EPA engaged with us to come up with positive solutions.

"If this material ended up in landfill it would have cost $2.4 million. This huge saving is fantastic for our community seeing important repair work done while enabling us to upgrade infrastructure."

The EPA is continuing to work with Council on multiple flood recovery projects to minimise material being sent to landfill.

Naughtons Gap Road has been closed since 2021 and is set to reopen in December as part of the $15.8 million Betterment of Naughtons Gap Road project.

(Naughton's Gap Road. Photo: Richmond Valley Council)

The project to repair the road and make it more resilient to future natural disasters was funded jointly by the Australian and NSW Governments and was the first Regional Roads and Transport RecoveryPackage project to start work. For more information visit Council's website.

The Environment Protection Authority has also been working with Lismore City Council on its flood cleanup.

A spokesperson from EPA said, "The NSW EPA has an operational team dedicated to supporting the infrastructure rebuild following the 2022 Northern Rivers floods.

"This team works closely with all seven councils in the region, including Lismore City Council.

"We’ve collaborated with Lismore on various flood recovery projects by conducting regular inspections, advising on repairs to roads damaged by landslips, and ensuring waste materials are transported and disposed of safely."