Bonacci Group provided structural engineering services for the upgrade works to the Oxley and Sandgate Waste Water Treatment Facilities. The project was delivered under an Alliance model, with Bonacci being engaged directly by a member of the Alliance.

This project was delivered as a competitive alliance and Bonacci provided structural engineering services for the new stage of the Merrimac Waste Water Treatment Plant.

The scope of works included a bio-reactor, clarifiers, sludge thickener, blower building and biosolids processing facility.