Project Details
Project Overview
NRC WWS successfully completed a highly complex 200m inversion dual-bladder sluice liner installation in a single piece, using 3HT Magmaflex liners to restore a failing drainage system suffering from major infiltration issues.
This precision no-dig solution was executed with zero excavation, overcoming a challenging diameter transition while ensuring a seamless and structurally sound rehabilitation, installed via buried access points.
The Challenge
- Meticulous Preparation & Expertise: detailed site assessment ensured every potential issue was accounted for before installation.
- The pipeline transitioned from 150mm at a rodding eye for 95m, then increased to 225mm for a further 95m, complicating the liner installation.
- Severe infiltration throughout the pipeline posed a risk of failure if not properly sealed.
The Solution
- Meticulous Preparation: detailed site assessment ensured every potential issue was accounted for before the installation.
- Precision Dual-Bladder Inversion Installation: the 3HT Magmaflex liner was installed in a single 200m operation, stretching across large diameter changes while maintaining seamless structural integrity.
- High-Efficiency Installation: over 500m of liners within four shifts, maintaining peak accuracy under intense conditions to ensure a seamless, high-quality result.
- Overcoming Diameter Transitions: specialist techniques were used to adapt the liner for the change from 150mm to 225mm, ensuring a perfect fit.
- Advanced No-Dig Technology: state-of-the-art bladder inversion methods allowed for a seamless, durable, and trenchless repair.



