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Rehabilitating Slopes
Transport for NSW | July 2022
Unprecedented ongoing rainfall this year has led to eight slippage sites along Galston Road between Hornsby Heights and Galston.
In May 2022, we advised that Galston Road will be reclosing to complete further remediation works at slippage site 3.
These works are scheduled to be carried out from Monday 8 August, taking up to two months to complete, weather permitting.
Works to be completed
We will be carrying out remediation of slippage site 3, this will involve stabilisation of the existing dry-stone retaining wall.
The stabilisation work will strengthen the retaining wall and is a preventative measure to reduce the chances of road closures in the future.
Maintenance coordination
ConnectSydney will be utilising the closure of Galston Gorge to carry out additional routine maintenance to reduce the impact on the community.
Works completed to date
We have remediated seven slippage sites. This has included the removal of approximately 1,600 tonnes of rock from the slopes including some large boulders, the installation of rock bolts and application of shotcrete to stabilise rock faces, the scaling of slope surfaces and completion of drainage improvements.
Ongoing monitoring of slopes
Our teams have been carrying out significant monitoring and investigations of the slopes.
Rain gauges have been fixed into the slopes of the slippage sites to monitor the amount of water and alert the project team during ongoing weather events. This allows us to act quickly in the advent of potential future emergency situations.
How will our affect you?
Large machinery is required, and workers will be placed in a high-risk zone, so a partial opening of the road during this phase of the work is not possible for safety reasons.
Community listening posts
We appreciate your patience during these important works and understand you may have questions about how we are carrying out our work.
We will be hosting two listening posts either side of Galston Gorge in late August.
Please monitor our website and social media channels or email the project team for further information.
Drone
A drone may be used to take progress photos and assist with survey work within the project area.
Traffic changes
There will be a full road closure of Galston Road between Hornsby Heights and Galston from 8 August 2022 for a period of up to two months to ensure the work zone is safe for our workers.
Our work will be weather dependent, and detours will be in place throughout the closure. Visual messaging signage will show detours and any changed conditions.
Please allow extra time for travel and follow the direction of signage and keep to speed limits.
For the latest traffic updates, call 132 701, visit livetraffic.com or download the Live Traffic NSW App.
Higher School Certificate
We are committed to reducing our work impacts during the HSC. If for any reason we have not completed works in time for the exams, we will temporarily cease work and revert to a partial reopening of the road similar to the arrangements during the month of June.
Contact Details :
If you have any questions or would like more information, please contact our project team:
1800 735 563
[email protected]
nswroads.work/GalstonRd
Translating and interpreting service
If you need help understanding this information, please contact the Translating and Interpreting Service on 131 450 and ask them to call us on 1800 735 563
For More information please click on the link below :
https://roads-waterways.transport.nsw.gov.au/projects/galston-gorge-hornsby-hts-galston[/vc_column_text][/vc_column][/vc_row]
