Supporting Reef Restoration

Working with the Department of Primary Industries to rejuvenate Port Stephens marine life through innovation.

  • Client

    Department of Primary Industries

  • Sector


  • Location

    Oyster Cove, Tea Gardens

  • Products

    3300 tonnes of Gabion Rock


After nearly 150 years of oyster habitat loss causing declines in fish number and water quality, Sydney Rock Oyster reef restoration Project aimed to re-establish oyster habitat throughout NSW estuaries. Hunter Quarries brief was to supply 3,300 tonnes of Gabion Rock to Tea Gardens Oyster Cove.

Port Stephens was selected to trial the use of 3,300 tonnes of rock and nearly 200 cubic metres of recycled oyster shell to re-establish oysters in the area. These were placed along the estuary flat and have helped establish new oyster colonies with initial monitoring detecting oyster settlement along the new reefs.

Supply of this product will enable the re-establishment of oysters’ natural habitat. The flow-on effect of the establishment will benefit local tourism, recreational and commercial fishers, aquaculture, and water users.

Video produced by NSW DPI – Dept. of Primary Industries

Partner with us on your next project

Contact our specialised team for more information about our products and how we can meet your specifications.

Our Projects

Wamberal rock emergency

Hunter Quarries engaged in a mammoth task of gaining extension of hours to crush and supplying Class 2 Armour Rock to Central Coast Council to protect coastal erosion.

Road base

Wambo mine project

In late 2020, Karuah East Quarry met a new milestone as they supplied 40,000 tones of ARTC ballast on time and to spec for the opening of Glencore’s United Wambo mine.