Lorne Landslip Remediation

Remediation of storm-damaged road infrastructure at Hall Street, Lorne, through slope stabilisation, gabion retaining walls and drainage improvements.

Scope

Keystone Civil was engaged by Surf Coast Shire Council to deliver landslip remediation and road reinstatement works at Hall Street, Lorne, following damage caused by a significant storm event. The project focused on stabilising the affected embankment, repairing damaged road infrastructure and improving drainage to reduce the risk of future erosion and instability.

The works included the removal of landslip debris, controlled excavation and batter reshaping across the affected roadside embankment. Site preparation involved clearing unstable material, establishing suitable foundations and undertaking earthworks to accommodate three gabion retaining walls designed to provide long-term slope stability.

Retaining wall construction involved the installation of rock-filled gabion baskets on prepared crushed rock foundations, supported by engineered backfilling and compaction. Subsoil drainage infrastructure, geotextile protection and granular drainage materials were incorporated to manage groundwater and surface water movement behind the retaining structures.

Final works included surface drainage improvements, road reinstatement, topsoil placement and revegetation of disturbed areas. These measures helped restore the functionality of the affected infrastructure while improving erosion resistance and integrating the stabilised embankment with its surrounding environment.

Project Delivery

Working within a constrained roadside environment, Keystone coordinated construction activities around traffic management, slope stability and environmental protection requirements. A staged methodology incorporating controlled excavation, gabion wall installation, drainage works and engineered backfilling supported safe and efficient delivery. Temporary safety barriers, underground service investigations and erosion and sediment controls were implemented throughout construction, with close coordination between Keystone Civil and Surf Coast Shire Council supporting the successful reinstatement of the damaged infrastructure.

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