Stabilisation of the cliff face at Witton Bluff

Abstract

The remediation works recently carried out to stabilize a section of the cliff face at Witton Bluff, South Australia are described. These remediation works were required because continuing terrestrial erosion has lead to large sections of the Witton Bluff cliff face becoming unstable. The remediation methods included the use of a geogrid reinforced earth retaining wall, used for the first time in South Australia in a coastal environment. The importance of community involvement, including working closely with the local Aboriginal people, is emphasised. Experiences gained from the project provided several lessons for future projects of a similar nature.