Marandoo Mine

Marandoo Mine

Rio Tinto Iron Ore

Western Australia, Australia

  • Geotechnical investigations throughout site
  • Waste fines storage facility
  • 3 Mm3 water supply dam
  • Pump upgrade, pipeline design, and associated instrumentation and electrical components
  • Site-wide hydrology studies
Project Overview

The Marandoo Mine is an open pit iron ore mine located 45 km east of Tom Price in the Pilbara Region of Western Australia, which has been operating since 1994 with an annual production of 15 Mt of ore. The waste fines storage facility (WFSF) contains the washed and screened fines material from the wet processing plant.

Project Role
  • Geotechnical investigations for major new plant infrastructure, crusher upgrades and various foundations, consisting of drilling, test pitting, seismic refraction, laboratory testing and tailings testing
  • Investigation, design, construction, and operational reviews of a 3Mm3 water supply dam.
  • Geotechnical investigation, design, approvals, and construction of a 16 Mt WFSF. Ongoing embankment raising construction supervision, operational reviews, and expansion studies.
  • Option studies, geotechnical investigation, design, approvals, and construction of a second 25 Mt WFSF, including pump upgrade design, 8 km delivery and water return pipeline design and associated instrumentation and electrical components.
  • Site-wide hydrology studies, including climatology, process water balance, creek diversion and infiltration dam designs, inundation mapping, dam break studies, and sediment control design.