View the video  

Setting New Standards

• Longest horizontal direction drilled installation of pipe in New Zealand.
• First installation of FPVC pipe in New Zealand.
• Drilling at depths up to 30 meters and grades as low as 0.5%.

Project Scope

• Install 1,036 metres of product pipe through a pre-reamed 900mm bore.
• Variable geological conditions encountered; ranging from hard sandstone to soft silts & clays.
• Grades ranging between 0.5% and 2.0% were achieved using specialist locating equipment, tooling and software.
• 24 meter deep manhole construction completed to check borehole alignment through deepest section.
• First installation of Fusible PVC in New Zealand.
• Due to restricted space conditions, pipe string was welded in five sections before being welded together during pipe pull.
• Extremely sensitive environmental conditions.
• Due to the size of the project there were numerous stakeholders.

Project Outcomes

• A high standard of drilling was achieved; this is to date the longest horizontal directionally drilled pipe line in New Zealand.
• This was the first installation of a fusible PVC pipe in New Zealand.  The benefits of installing this product over HDPE were enormous and contributed to the success of the project.
• The project won a Contractors Federation Environmental award.  This showed the dedication the team had with respect to protecting the environment throughout the project.