30 Jun Greymouth WWTP, West Coast
Date: January – June 2013
Client: Grey District Council
Main Contractor: Hawkins Infrastructure
PT Subcontractor: BBR Contech
The Grey District Council’s new wastewater treatment plant in Greymouth is designed to receive, treat and manage wastewater from Greymouth, Cobden, Karoro and surrounding areas.
As part of this upgrade a new Biological Trickling Filter tank was constructed by Hawkins Infrastructure being 27 metres diameter. BBR Contech were subcontracted for the post-tensioning of horizontal tendons in wall panels being 11 rings of 5 strands stressed through four pilaster panels.
BBR Contech supplied the Drossbach duct and the BBR CMI anchorages to the precaster then installed, stressed and grouted the tendons.