07 April 2025
Upcoming site investigations and traffic impacts
Parsley Road, Vaucluse | April 2025
From 14 April for up to three days (weather permitting), we will be conducting investigation work on the western side of Parsley Road.
Below the cliffs of Vaucluse and Diamond Bay, wastewater flows directly into the ocean untreated. It’s time for change and we’re continuing to work to ensure this iconic area of Sydney gets the clean, blue backyard it deserves. Under the Refresh Vaucluse Diamond Bay project, we are building new infrastructure to divert the flows from the last three remaining ocean outfalls in Sydney to the Bondi Water Resource Recovery Facility (WRRF).
At the beginning of February 2025, drilling work started for the new 1.8km wastewater pipeline from the Parsley Bay Reserve car park to Carlisle Street, Rose Bay. After this pipeline is complete, the team will start construction on the new pump station in the Parsley Bay carpark. Construction is expected to start on the pump station in July 2025.
In preparation for this work the project is required to undertake geotechnical investigations and minor road trenching to assess the surroundings for the installation of underground cables on Parsley Road.
From 14 April for up to three days (weather permitting), we will be conducting investigation work on the western side of Parsley Road.
Work will commence at the intersection of Horler Avenue and Parsley Road, and we will be moving towards the intersection of Parsley Road and Fitzwilliam Road.
What’s happening: Geotechnical and tree root investigation on Parsley Road We will be carrying out geotechnical investigation work on Parsley Road. This work will involve borehole drilling in sections of the road. Borehole drilling is used to collect soil and rock samples to assess the ground conditions. All borehole drilling will be carried out under the full-time supervision of the Project Engineers.
The tree root investigation will involve non-destructive digging methods to expose tree roots. An arborist will map these tree roots and determine if there are any clashes with the installation of the underground cables. This investigation work will require small sections of saw cutting, digging, trenching and drilling at intervals on the road.
We expect some of this work to be noisy at times and there will be an increase in construction vehicles moving material and equipment around the work area. Once this work has been completed, affected areas will be reinstated.
Parsley Road will remain open to traffic. To safely facilitate this work, some parking on the western side, and between numbers 14 and 16 of Parsley Road will be temporarily removed. Parking will be removed at intervals around work areas, and we will release this parking once the work is complete. This will provide safe access to road users and will maintain traffic flow during this work.
Areas of ‘no parking’ will be clearly delineated with traffic barriers and signs advising of applicable dates. Traffic management will be in place to ensure the safety of our crew, residents and road users. Pedestrian access to Parsley Bay Reserve will be maintained via Horler Avenue.
Equipment and machinery to be used for the work may include:
- road saw
- vacuum truck
- trailer mounted drill auger
- excavator
- jack hammer
- small construction vehicles
- To minimise impacts we will:
- use dust suppression techniques
- stage our work in sections
- install noise blankets around work areas where possible, to minimise noise
- turn off machinery when not in use
- have traffic control in place on Horler Avenue and Parsley Road
Our work hours:
- Monday to Friday, from 7 am to 6 pm
- Saturdays from 8 am to 1 pm
- There will be no work on public holidays or drilling activities from Tuesday 22 April to Thursday 24 April.
Construction activities will continue on the Caretaker’s Cottage and maintenance staff will be in attendance on these days.