NUFLOW NORTHWEST
CASTLE HILL FAMILY DOCTORS – The Hills Shire Council NSW
PROJECT OVERVIEW
Nuflow was engaged to rehabilitate a deteriorating stormwater pipe located beneath Shop 4, the site of a former pharmacy. The 150mm terracotta line showed signs of advanced deterioration and presented a high risk of collapse if left unaddressed. Because the pipe was situated directly under a retail premises, excavation was not a viable option. A trenchless Blueline installation was identified as the most effective solution, providing a structural repair without disrupting the occupied building above.
CHALLENGE
- High risk of collapse – The terracotta stormwater pipe had deteriorated to the point where further movement or stress could have led to collapse, requiring immediate rehabilitation.
- Sensitive location – The pipe ran directly beneath a commercial tenancy, making excavation impossible without major business disruption and structural impact.
- Pipe fragility – The existing terracotta host pipe was brittle and unstable, requiring a solution that could reinforce its structure without further damaging it.
- Time and access limitations – As the worksite was within a shop space, the project needed to be completed efficiently, with careful attention to safety, access, and cleanliness.
THE SOLUTION
To ensure the stormwater system was restored without excavation or disruption, the Nuflow team applied a structured trenchless rehabilitation process:
THE RESULTS
The high-risk terracotta stormwater pipe beneath Shop 4 was structurally rehabilitated with a 150mm Blueline liner, eliminating the potential for collapse and extending the lifespan of the system well into the future. The trenchless approach ensured the occupied retail premises remained unaffected, with no excavation required and no disruption to the building’s structure or use. By applying this method, Nuflow provided a durable, cost- effective, and minimally invasive solution to a potentially critical infrastructure issue.
NUFLOW’S AGING INFRASTRUCTURE MAINTENANCE AND REHABILITATION
For information on how Nuflow can help maintain and rehabilitate your potable water assets— including pressure main relining, concrete pipeline repairs, and trenchless rehabilitation of critical supply infrastructure—contact our team of specialists. We deliver safe, compliant solutions for even the most complex potable water pipe repair projects.
