All CURVED ALIGNMENTS DIRECTIONAL DRILLING DRILLING IN ROCK LOW GRADE INSTALLATIONS PIPE BURSTING / SLIP LINING SENSITIVE ENVIRONMENTS Manukau North Local Wastewater Network UpgradeThis Watercare contract involved the upgrading of the wastewater network in 9 separate areas in the Howick and Pakuranga area in Auckland. Okahu Bay Separation ProjectCDS completed the HDD installations for the Okahu Bay Stormwater Separation project for CB Civil & Drainage and their client Auckland Council Redhills Wastewater Infrastructure ProjectThe Redhills project involved approximately 300m of 450mm diameter, 1km of 400mm diameter, 210m of 710mm diameter, 560m of 355mm diameter and two stream crossings of 630mm diameter and 560mm diameter polyethylene (PE) pipe Lawsons Creek Branch Sewer Early WorksThe Lawsons Creek Branch Sewer Early Works were a critical installation done for Watercare Services Limited and their main contractor Pipeline & Civil Limited Rotokauri Bulk WatermainCDS installed over 1km of 560mm OD PE pipe and over 1km of 630mm OD PE pipe using CDS Maxi Rig and DitchWitch® JT100 Rig Takitimu Street Stormwater UpgradeThe 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. Hingaia Peninsula Trunk SewerCDS installed in excess of 1.5km of DN 475 PVC pipe for this project, at depths exceeding 6m. Hastings Pde Stormwater RenewalsThis project involved installing 100m of 250mm PE pipe inside an existing reinforced concrete pipe and PE pipe using pipe bursting and slip lining technologies Mangawhai Pump Station and Rising MainThis project involved installing 850m of wastewater rising main and a pump station. North Waitakere SewerCDS Installed 3.5km of 400mm to 630mm pipeline installed at flat grades (down to 0.13%) through varying ground conditions including rock. Tauranga Te Awanui Drive Watermain Slip LiningCDS 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 Christchurch PM 128 Rising MainFor this project CDS installed approximately 3,000m of 800mm OD PE pipe in liquefied sands in Christchurch. Mellons Bay Branch SewerCDS were contracted to install a single length 115m of 350mmØ gravity sewer to a grade of 0.3%. Springcombe Stormwater RenewalsCDS successfully completed a stormwater outlet drill shot, installation of 200m of 630mm OD PE pipe down the middle of a busy St Heliers Road Franklin Road Stormwater UpgradeCDS 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
