Large Scale Civil Earthworks & Drainage Project for essential mine infrastructure upgrades in Newman
The OB35, TSF1 Wall Lift & TSF3 Buttress Works included:
- Tailing dam lift
- Pipeworks
- Electrical and instrumentation works
- Culvert supply & installation
- Concrete works
- Steel fabrication
- Bulk earthworks
Works Included:
- OB35: Construct flood protection bund, including installation and/or trimming of safety berms.
- OB35: 6-barrel 1.2m diameter corrugated steel pipe culverts and a section of haul road over the culvert.
- OB35: Bulk excavation and construction of a 235m land bridge in the diversion channel section at the Overburden Storage Area (OSA).
- Complete downstream and upstream end of creek diversion, including riprap sorting and placement.
- TSF1 Wall Lift: Includes a 3m raise of the existing TSF1 wall, access ramps, new decant access causeway, surface water treatment, decant pontoon design and construction, pumps, and equipment.
OB35 Creek Diversion, TSF1 Wall Raise & TSF3 Buttress
Working with one of our key clients on a multi-discipline project:
- Replacement of approximately 920m HDPE tailing delivery pipeline, including completing works during a shutdown.
- Installation of motor, pump, and valves.
- Removal and replacement of 1600m Victaulic Tailings Deposition pipe.
- Removal and replacement of 800m HDPE Decant return pipe.
- Electrical infrastructure, including power poles, installation of communication, CCTV, instrumentation, and control items.
- TSF3 Buttress Wall: Including removal of vegetation, construction of buttress wall, and saddle dam using 400,000m³ of approved fill material from OSA.
Due to the constraint of the available Workfront in the three different areas, contractors were required to work concurrently on the different packages and to complete specific SMP works during the shutdown period.
The work was awarded to Carey based on the previous successful completion of similar bulk earthworks packages, building on strong safety performance, and the capability of the Carey Management team.
