Hydraulic Containment at Landfill Sites

Nathan Juchau, Charles Spalding, Stephen Jones, and Dr Gary Schmertmann

The world’s deepest continuous trench groundwater barrier wall is currently under construction at the former Newcastle Steelworks site. Contractor Austress-Menard (A-M) was engaged by the Regional Land Management Board (RLMC) to design and construct the barrier wall to reduce migration of contaminated groundwater to the adjacent Hunter River, as part of the remediation strategy for the site (refer to attached summary for further information). The following presentation and site inspection provide a rare opportunity to observe construction of the wall first hand, and understand the technical and practical considerations for design.

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