Mount Ousley Road natural disaster recovery repairs
Project overview
COMPLETED: Transport for NSW has restored Mount Ousley Road to full operations after completing repairs to natural disaster damage.
Latest news
Oct 2023 - Mount Ousley Road restored to full operations
Transport has restored Mount Ousley Road to full operations after completing an extensive work program to repair damage caused during last year’s record-breaking rainfall.
The final stage of work, which involved repairing the damaged road pavement, roadside barriers and gutter, was completed after a five-week program carried out by Transport’s maintenance crews and contractors.
Completion of this work means the southbound has been restored to three lanes until the merge occurs before the New Mount Pleasant Road intersection.
Work completed in February this year to install a series of drainage pipes will help make Mount Ousley Road more resilient to future severe weather events.
Image
Image controls:
Project information
Background
Wollongong and the Illawarra experienced record-breaking rainfall during 2022.
The increased water flow off the escarpment caused damage to the southbound left-hand lane, about one kilometre north of the New Mount Pleasant Road intersection.
Transport for NSW closed the lane to make the road safe.
Detailed geotechnical investigations were carried out to better understand the specific factors that caused the damage.
These investigations included creating 3D maps of the slope, drilling for soil samples, as well as measuring slope movement and underground water pressure.
Findings from these investigations informed an innovative solution to make Mount Ousley Road more resilient to future extreme weather events.
About the project
The aim of the project is to reduce the ground water pressure under Mount Ousley Road.
This was achieved with the installation of a series of pipes under Mount Ousley Road to drain water from under the road.
An underground boring technique known as horizontal directional drilling was used to lay the pipes. This method is proven to be cost-effective, quick to complete and has a low environmental impact. It has the added advantage of having a minimal impact on traffic.
Next steps
Project completed.
Image
Image controls:
Contact us
For further information about this project, please contact: