This project was for the Stage 5B raise the existing Mt Rawdon Tailings Storage Facility (TSF) from RL180m to RL181m.

The detailed requirement for the project included:

 – The mobilisation and demobilisation for 12 number pieces of mine approved earthworks

 – The establishment and disestablishment of project site facilities/services to mine site stand-

 – The provision of management and supervision for the

 – Approximately 0Ha of clearing for the borrow pits.

 – Approximately 5,000m3 of topsoil stripping and stockpiling for borrow

 – Removal and subsequent replacement of approximately 3,800m3 existing rock fill

 – Removal and subsequent replacement of approximately 1,200m3 of road gravel

 – Approximately 23,000m2 of existing surface scarification for subsequent

 – Win, load, cart and place approximately 9,400m3 of clay

 – Win, load, cart and place approximately 13,200m3 of general

 – Win, load, cart and place approximately 7,000m3 of select rock

 – Quality assurance testings of

 – Borrow pit

In May 2022 McCosker returned to complete the construction of Stage 5D development (RL186.0m Lift) of the TSF. The RL186.0m Lift works comprise the following works:

 – Lifts to the existing Northern, Southern and Western Embankments

 – Construction of an Emergency Spillway at the north-western corner of the TSF

 – Construction of the Stage 5D raise to the Decant Causeway at the south-western corner of the TSF, raising of a haul road along the western boundary of the TSF, Rock Fill Buttress construction for the Northern Embankment