South East Water has completed the 4.4 km Portsea to Sorrento water main pipeline upgrade along Point Nepean Road, securing a safe and reliable water supply for locals and visitors — now and into the future.
The 300-mm-diameter concrete pipes, initially laid by the army in the 1940s, serviced the Point Nepean Quarantine Station. Over time, the aging pipes deteriorated, increasing the risk of disruptions.
South East Water’s General Manager Liveable Water Solutions Charlie Littlefair highlighted the benefits of the upgrade for the community.
“This upgrade won’t just enhance the reliability of the water network; it’ll also support the growing needs of the Portsea and Sorrento communities. By rejuvenating this vital pipeline, we’re helping to significantly reduce the risk of bursts and faults,” Mr Littlefair said.
South East Water adopted an innovative trenchless construction approach to reduce impacts on the community, cultural heritage, and the environment.
The project team overcame unique challenges, including varying pipe thickness, depth, horizontal alignment, and a smaller-than-expected internal diameter.
South East Water and delivery partner Service Stream developed custom equipment to split the old pipe and re-engineered the network to use the existing alignment. This approach allowed for a sustainable and efficient renewal.
Crews are restoring impacted areas and will complete this work over the next month. Residents and visitors may still see activity along Point Nepean Road during this time.
Whilst the primary alignment of the pipeline is now complete, crews will return to the site in February 2025 for approximately one week of work on Melbourne Road and Point Nepean Road to finish the project.
Building on the successful completion of the 4.4 km Portsea-Sorrento pipeline, South East Water remains dedicated to upgrading the region’s water infrastructure.
Plans for the next phase of Peninsula water main upgrades are underway, ensuring a safe and reliable water supply for the community.
For more information and project updates, visit Upgrades and Projects | South East Water
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