The water main on Old Barrenjoey Road was built in 1949 and has had multiple breaks in the past 5 years, so it needs replacing. It is one of our larger water mains, supplying over 5,000 customers.
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We aim to prevent ongoing leaks and breaks in our pipes in this area. Our crew is upgrading old water pipes, valves and hydrants.
This project involved upgrading a 500-metre section of the water main along Old Barrenjoey Road in Avalon Beach.
We are pleased to confirm the new water main is now operational and servicing the community.
We worked between March and November 2025, before pausing over summer to avoid impacting the peak business trade period and to provide respite to our neighbours. We then returned to site March 2026 to complete the project.
Since our return to site in March 2026, we have:
completed our quality checks of the new pipe and cleaned the new pipe.
connected the pipe to the existing water network along Old Barrenjoey Road at three intersections - Barrenjoey Road, Avalon Parade and The Crescent.
transferred property and fire services to the new pipe.
removed our compound and laydown areas.
Our work has ensured we can continue to give you clean and reliable water every day.
You may continue to see us in the area from time to time as we complete our quality checks and minor rectification work. This work will be scheduled during the day, where possible.
We are in the final stages of decommissioning the old main. We'll work for about 12 shifts until late November at the intersection of Old Barrenjoey Road and Avalon Parade. This work will be done at night to reduce impacts to daytime businesses and while water use is low.
We know that Old Barrenjoey Road is much loved by locals and visitors. We are working with Northern Beaches Council to plan permanent restoration. We will provide more information to the community soon.
We've confirmed our plans to decommission the last section of the old pipe. We'll now return to complete this final activity.
Since our last update in July, we have connected the new pipe to the water network and have transferred property and fire services. We are pleased to confirm that the new water main is now operational and servicing the community.
Since our return in March, we have finished laying the remaining sections of pipe, which involved challenging ground conditions near Barrenjoey Road and a complex network of pipes at the Avalon Parade intersection.
We’ll start from Monday 16 March by doing some routine quality checks on the new water main at night between The Crescent and Avalon Parade. This may involve some potholing and excavation at times.
We’ll also reestablish our temporary compound in the grassy area opposite 61 Old Barrenjoey Road.
Our work has unfortunately been slowed due to challenging ground conditions and significant wet weather. While we’ve made every effort, we won’t be able to finish by late October 2025 as planned. We apologise for the delay and for the ongoing construction disturbance being experienced by residents and businesses.
From 3 September, we'll start work to install a section of water main underneath the intersection of Old Barrenjoey Road and Avalon Parade.
From Thursday 7 August 2025, we'll start work to install the section of water main at the intersection of Barrenjoey Road and Old Barrenjoey Road, in front of the Avalon fire station. This work needs to be done at night to reduce the impact on daytime traffic flows.
Our team will start our tunneling work in 'section 2' to renew the watermain along Old Barrenjoey Road from Thursday 5 June.
Our team will start working to renew the water main along Old Barrenjoey Road from Monday 10 March.
We'll soon start renewing a section of the water main along Old Barrenjoey Road in Avalon Beach.
In December 2022 and January 2023, we did some investigation work to confirm where our pipes and other services are below the ground.
In December 2022, we did some investigation work to confirm where our pipes and other services are below the ground. We finished most of the work, but we need to return for a few nights next week to finalise our investigations.
Thank you to everyone who provided feedback in our night work schedule survey. We have carefully considered all feedback to finalise our night work schedule. We'll work up to 4 consecutive nights a week, from Monday night to Friday morning.
We'll soon begin renewing a section of the water main along Old Barrenjoey Road, Avalon Beach. We’re also working closely with the Northern Beaches Council to plan this work.
We're renewing the water main along Old Barrenjoey Road in Avalon. We're talking to impacted businesses on Old Barrenjoey Road to understand your operations and access requirements.
The water main on Old Barrenjoey Road was built in 1949 and has had multiple breaks in the past 5 years, so it needs replacing. It is one of our larger water mains, supplying over 5,000 customers.
We'll use 2 types of construction methods to install the new water main – open trench and tunnelling.
Open trench: We'll install the new pipe in Section 1 using the open trench method. Each night, we'll dig a trench, lay the new water main, backfill the trench and temporarily restore the road. We'll repeat this process as we move from The Crescent to Dunbar Park. The work will be done during our night work hours and take about 22 weeks.
Tunnelling: We've found technical challenges in Section 2, including other buried services, soft ground and a lot of groundwater. We'll use a tunnelling method to install the new water main in this area. This involves digging entry and receival pits at either end, and installing the new water main by tunnelling below ground between the 2 points. The work will be done during our day work hours and should take about 12 to 16 weeks.
Section 1
We'll need to temporarily close part of Old Barrenjoey Road where we're working at night. Our friendly traffic controllers will maintain access for residents and parking on either side of our work area. General traffic will be detoured via connecting streets. At the end of each night shift, we'll restore the road so it can be used as normal during the day.
We'll need up to use up to 8 parking spaces for equipment storage next to our work area. This storage area will move along the road as we progress.
Section 2
Our work area will be very space-constrained during the tunnelling work, so:
We won't be able to pack up this work area at the end of each shift. This means that these traffic changes will be in place 24/7 for the 12 to 16 weeks that we work in this area.
We have temporarily restored the road and footpath areas, and we're working with Northern Beaches Council to plan permanent restoration. We'll provide more information to the community soon.