Key milestone reached to reinstate all access points to Jenolan Caves
Work to reinstate full, safe access through Jenolan Caves Road has taken a step forward with a managing contractor appointed to oversee repairs to the significant damage to the main slope on the Five Mile section.
Transport for NSW Regional Director West Alistair Lunn said the appointment of Bouygues Construction Australia was a significant step forward as the project to repair the failure had been an enormous task.
“It is not often we see such a significant slip which affects a key route and the surrounding slopes,” Mr Lunn said.
“The main slope failure occurred in March 2021 and was exacerbated further during a series of rain events throughout 2022, in particular two further landslips in July and October.
“Those slips caused significantly more damage to Jenolan Caves Road along both Two Mile and Five Mile hillsides, and restricted access to the main slope failure.”
Once able to access the site, engineers and geotechnical experts carried out extensive investigations and planning workshops, and then presented the preferred option for repairs to the main failure.
This will feature a rockfall barrier and slope stabilisation above the road, and a reinforced soil wall with ground and rock support elements below the road to allow both excavation access and reconstruction of the road formation.
The scope was extended to include repairs to an additional downslope landslip which occurred during the July 2022 weather event, and will need to be reconstructed first to allow access to the main slope failure.
“Our managing contractor will be responsible for finalising the design of the repairs,” Mr Lunn said.
“Jenolan Caves Road presents some unique challenges for our crews and contractors planning and working on remediation along the route.
“The terrain is a challenge in itself, which is why we have been working to restore access where possible while also planning long-term solutions which will enhance the accessibility, safety and efficiency of the road in years to come.
“We are working closely with the Jenolan Caves Reserve Trust and appreciate their understanding and cooperation, along with visitors and all motorists for their patience while we undertake this important work.”
Construction work on the main slope failure will begin by mid-2024.
Traffic control remains in place along Two Mile, seven days a week to retain access for the public. Check Live Traffic for the latest updates.
More information and updates on works being conducted along Jenolan Caves Road can be found at nswroads.work/jcroad.