Anglesea Landfill Cell Capping

Construction of a new landfill containment cell and rehabilitation capping works, incorporating engineered lining systems, earthworks and environmental protection measures.

Scope

Keystone Civil delivered the Stage 3E Cell Construction and Stage 4 Rehabilitation Cap works at Anglesea Landfill for Surf Coast Shire Council. The project was delivered across two separable portions, incorporating extensive earthworks, engineered lining systems, stormwater management and environmental protection infrastructure.

Separable Portion 1 – Stage 3E Cell Construction

Works involved approximately 7,000m² of earthworks, including the formation of 1:3 batter slopes to prepare the new landfill cell. Following earthworks, Keystone installed approximately 6,700m² of Geosynthetic Clay Liner (GCL), Linear Low-Density Polyethylene (LLDPE) and cushion geotextile to provide a robust containment system.

Additional infrastructure included gas collection and leachate drainage systems to manage landfill by-products and protect the surrounding environment. Keystone also constructed stormwater swales for Surf Coast Shire Council to improve surface water management and control runoff.

All works were carefully coordinated to maintain uninterrupted landfill operations, allowing the facility to continue operating at full capacity throughout construction.

Separable Portion 2 – Stage 4 Rehabilitation Cap Construction

The second separable portion involved rehabilitation and capping works across approximately 13,000m² of the existing landfill. Keystone undertook earthworks to reshape existing waste levels and prepare the surface for the installation of engineered capping systems.

Works included placement of subgrade material, followed by installation of GCL, LLDPE and cushion geotextile lining systems. Approximately 12,000m² of capping material was then placed to a depth of one metre, providing long-term containment and environmental protection.

Project Delivery

The project required careful coordination of earthworks, specialist geosynthetic lining installations and environmental controls within an operational landfill environment.

Keystone adopted a staged construction approach to maintain landfill operations while delivering new containment infrastructure and rehabilitation works. Close coordination with Surf Coast Shire Council and specialist contractors supported safe construction, effective environmental management and the delivery of long-term landfill infrastructure improvements.

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