Black Mountain landslide

Share Black Mountain landslide on Facebook Share Black Mountain landslide on Twitter Share Black Mountain landslide on Linkedin Email Black Mountain landslide link

The Black Mountain Road landslide is the biggest landslide on the Sunshine Coast in 30 years. Geotechnical assessments after the landslip determined much of the damage was below the surface, measuring as wide as a rugby league playing field and as deep as a five-storey building. Coming up with solutions to restore the area was complex and involved extensive geotechnical and engineering investigations.

The reconstruction will stabilise the road between depths between 5m to 25m across the 130m span and improve subsurface drainage. Early works began in late September 2023, with major construction starting in November. Construction is expected to finish in April 2025, weather and construction conditions permitting.


The Black Mountain Road landslide is the biggest landslide on the Sunshine Coast in 30 years. Geotechnical assessments after the landslip determined much of the damage was below the surface, measuring as wide as a rugby league playing field and as deep as a five-storey building. Coming up with solutions to restore the area was complex and involved extensive geotechnical and engineering investigations.

The reconstruction will stabilise the road between depths between 5m to 25m across the 130m span and improve subsurface drainage. Early works began in late September 2023, with major construction starting in November. Construction is expected to finish in April 2025, weather and construction conditions permitting.


Page last updated: 24 Jun 2025, 03:47 PM