PROJECTS

This Watercare contract involved the upgrading of the wastewater network in 9 separate areas in the Howick and Pakuranga area in Auckland.

  The Lawsons Creek Branch Sewer Early Works were a critical installation done for Watercare Services Limited and their main contractor Pipeline & Civil Limited. One particular section needed to be installed via HDD due to the sensitive bush along one side of the alignment and newly completed homes on the other. CDS were tasked…

  CDS New Zealand Ltd worked with Head Contractor Connell Contractors Ltd to deliver the HDD component of works on the Rotokauri Bulk Watermain project for Hamilton City Council. CDS installed over 1km of 560mm OD PE pipe and over 1km of 630mm OD PE pipe from November 2017 through to June 2018 using CDS…

The Takitimu Street Stormwater Upgrade was a Auckland Council project undertaken by CDS New Zealand Ltd. This project was commissioned by the council to increase the stormwater capacity and facilitate further development in the catchment.

The project included;
• A 100m shot of 630mm OD PE pipe from the bottom of Takitimu Street, under a sensitive waterway and to the Orakei Domain.
• A second, 50m shot of 630mm OD PE pipe.
• Construction of an energy dissipater & new manhole on the existing Orakei Stormwater Culvert – undertaken in conjunction with a specialist subcontractor, Pipeline & Civil Ltd.
• Installation of 7 manholes and 9 catchpits.
• Sections of open cut pipe.
• 155m drill shot of 355mm OD PE pipe down Takitimu Street.
• Connection of private property to the new stormwater system.

On this project CDS used its DitchWitch® JT8020 drill rig accompanied by our Triflo mud mixing and recycling plant. For the smaller diameter installations CDS used its DitchWitch® JT4020 drill rig.

Overall the trenchless installation of the new, upgraded stormwater system minimised disruption to the residents and resulted in significant savings for Auckland Council on their reinstatement costs. This project was completed on programme and saved Auckland Council over $130,000.00 on the original tendered price.

CDS installed in excess of 1.5km of DN 475 PVC pipe for this project, at depths exceeding 6m.

This project involved installing 100m of 250mm PE pipe inside an existing reinforced concrete pipe and PE pipe using pipe bursting and slip lining technologies. The existing sections of pipe had become completely blocked with tree roots. CDS also installed and rehabilitated a number of manholes and catchpits.

This project involved installing 850m of wastewater rising main and a pump station.

CDS Installed 3.5km of 400mm to 630mm pipeline installed at flat grades (down to 0.13%) through varying ground conditions including rock.

CDS installed 680m of 315mm PE pipe via slip lining inside and existing 350mm PVC pipe. This pipe was installed using our DitchWitch® JT4020 drill, in 2 separate drill shots

For this project CDS installed approximately 3,000m of 800mm OD PE pipe in liquefied sands in Christchurch.

CDS were contracted to install a single length 115m of 350mmØ gravity sewer to a grade of 0.3%.

CDS successfully completed a stormwater outlet drill shot, installation of 200m of 630mm OD PE pipe down the middle of a busy St Heliers Road

CDS was contracted to install 400m of 400mm Ø and 450mm Ø PE pipework by pipebursting the existing 300mm diameter stormwater pipe running under Franklin Road