We supported NTRLBU through early design and procurement to test the constructability of a resilience focused upgrade to the York Valley Landfill leachate system. Independent assessments identified the existing drainage network as the landfill’s most vulnerable component, with relatively small earthquake induced movements capable of severing the system and allowing leachate to accumulate, reducing slope stability and increasing environmental risk.

Through design reviews and early contractor engagement, we helped shape buildable options that strengthened long term seismic resilience, increased the landfill’s factor of safety, and improved the robustness of the drainage system. It involved the realignment of the main access road, leachate extensions, and installation of gas wells.

The approach prioritised durable construction methodologies and practical sequencing suited to a constrained site, supporting a design intended to protect the surrounding environment and maintain the integrity of an essential community asset over its operational and post closure life.

As Client Project Manager, we undertook Engineer’s estimates and budgets; procurement; tender evaluations; budgeting/financial forecasting; monthly claim reviews and acceptances; validating and costing variations.

Services: Design review | ECI support | Procurement planning | RFT development | Tender evaluation | Client Project Manager

Team: Matt Armstrong | Jono Rose | Kim Keown | Paul Duffy