Tuntable Creek Road
- Project Status: Temporary Works Complete
- Completion Date: March 2023
Tuntable Creek Road experienced significant damage during the February 2022 natural disaster (AGRN1012) with 11 notable landslips recorded and a major landslip closing the road north of intersection with Rose Road.
A temporary solution was designed to open the road and establish connectivity between Nimbin and The Channon while the permanent solution is designed. The temporary construction consisted of stabilising the embankment below the road and excavating into the slope above the road to make a single trafficable lane.
The stabilisation will use up to 160 8m long soil nails and over 400m2 of sprayed concrete. Additionally, crews also reconstructed pavement through the slip zone and installed light traffic control. The road opened in March to local access only and restricted during weather events.
Due to the volatile nature of the landslip and risks of further damages occurring a detailed risk assessment was undertaken to control access until a permanent solution is implemented. The risk assessment requires weekly visual monitoring, survey monitoring of fixed control points and monthly inspections by a geotechnical engineer. Restrictions will be placed on the temporary access road during large rain events to mitigate risks to public.
