NUFLOW NORTHWEST SYDNEY
BRONTE ROAD & BIRRELL STREET WAVERLEY COUNCIL
PROJECT OVERVIEW
Nuflow carried out essential rehabilitation works on a 17-metre section of 300mm concrete
pipework beneath Birrell Street to Bronte Road. The works were scheduled as night operations, running from 9:00 PM to 5:00 AM, Sunday to Thursday, to minimise community disruption.
The project addressed an illegal connection between PVC and concrete pipework as well as multiple cracks within the line. Given the location under a busy roadway and adjacent to public infrastructure, the works required precise coordination with council approvals and external contractors.

CHALLENGE
The project presented several challenges that required careful planning and execution to ensure successful delivery while complying with council requirements and minimising public impact:
- Illegal Connection: An unauthorised PVC-to-concrete pipe connection had to be sealed to restore system integrity.
- Cracked Pipework: Sections of the existing concrete pipe were compromised and required structural rehabilitation.
- Restricted Access: The location beneath a road and near a bus stop required night works to avoid traffic and commuter impacts.
- Council Requirements: The project had to align with council’s road occupancy licence (ROL) conditions and coordination with traffic control contractors.
- Specialised Equipment: Use of a tractor and push rod CCTV inspection system was necessary to assess and monitor the internal condition of the pipe.
THE SOLUTION
To overcome these challenges, Nuflow implemented a structured plan that combined trenchless technology with coordinated project management:

THE RESULTS
The rehabilitation works were completed efficiently within the designated night shift windows, with minimal disruption to the community. The relined section restored full structural integrity to the 300mm pipework, sealing the illegal connection and addressing cracks beneath the roadway. By completing the works under council’s strict timing and access conditions, Nuflow ensured compliance, maintained public safety, and delivered a durable solution that extends the service life of the asset.

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.