Point Cook Road Watermain

Installation of 525m of DN400 HDPE potable water pipeline and 30m of combined DN180 and DN280 HDPE non-potable pipeline.

Scope

Keystone Civil successfully delivered a 525m DN400 HDPE potable water pipeline and 30m of combined DN180 and DN280 HDPE non-potable pipeline. The works featured precise PE welding, bends, tee pieces, and DICL fittings for durability and efficiency. Key infrastructure included one inline bypass, one offset hydrant, and modifications to existing assets to enhance system performance. Tie-ins, thrust blocks, and comprehensive testing ensured long-term reliability.

Beyond pipeline installation, the project included reinstatement works such as asphalt repair, traffic island reconstruction, crack sealing, linemarking, and grout filling. To reduce disruption to busy daytime traffic, construction was strategically carried out as nightworks, ensuring minimal community impact through careful planning and execution.

Sustainability Initiative

Rather than removing the existing pipe, we opted to fill it with grout. This approach significantly reduced costs and minimised environmental impact by eliminating the need for an additional trench or more asphalt. Consequently, it also saved time and provided financial savings for the client.

Stakeholders

Nightworks: To mitigate noise and disruption, especially since the project involved working in rocky conditions, we employed a 36-ton excavator. Although larger than typically necessary, this machine was powerful enough to excavate the rock without needing to break it. By avoiding rock breaking, particularly at nighttime, we prevented significant disturbances to the surrounding area.