General News
23 July, 2025
Progress underway for highway landslips
SLOPE stabilisation works have started on Mossman-Mount Molloy Road to repair a major landslip.
The landslip site being repaired is approximately 1.5 kilometres from the Mossman-Mount Molloy Road Lookout (towards Mossman).
Works may not be visible from the road as much of the required reconstruction is happening on the downslope, below the road.
With vegetation and clearing works completed. Soil nails have been drilled and shotcreting works will follow.
WORKS are progressing to repair the significant damage sustained to the Palmerston Highway during Cyclone Jasper in late 2023.
The Department of Transport and Main Roads (TMR) is continuing essential geotechnical repairs at two damaged sites on the critical transport route – upslope and downslope damage a section 2.5km west of Crawfords Lookout; and upslope damage at a site 1.5 km west of the Henrietta Creek day use area.
At the first site, soil nailing has been completed on the upslope landslip. The crews installed 295 soil nails of varying lengths.
Micro piling and the installation of a gabion retaining wall (baskets filled with rocks) is ongoing.
A temporary construction platform for a piling rig at the downslope landslip has been completed, with piling works expected to start next month.
At the second site, batter trimming has started, and soil nailing is underway.
Batter trimming is ongoing on the upslope landslip which measures close to 20 metres. Given the height of the slip, the design includes a bench to facilitate drainage and provide access during construction.
This bench enables workers to reach the upper sections of the slip and install soil nails effectively.
As part of the soil nailing process, grout is flushed to ensure the holes are clean and there is no dirt against the side of the nail. Once the nail is fully installed, the final grout is injected.
Environmental controls are in place to ensure any excess grout is captured and removed from the site.
