Marandoo Mine Phase II

Project Info:

Rio Tinto’s (Marandoo Mine Phase 2 Dewatering Project) Iron Ore Mine is located within Karijini National Park in the Pilbara Region of Western Australia.

Expansion of the mine capacity requires mining below the water table. The project comprised the installation of approximately 35 km of MSCL pipelines ranging from DN500 to DN1000, 27 dewatering bores, a 2.5 ML collector tank, two pump stations and a contingency discharge to allow the water table to be lowered for the mining activities. The extracted water is used to supply the Hamersley Agricultural Project which was developed in conjunction with the dewatering project.

The water will also be used to supply the town of Tom Price and for reinjection into an existing borefield. Powerlines Plus was engaged by Lycopodium on behalf of Rio Tinto in a design and construct role for the distribution electrical infrastructure package. The package included more than 40 km of both overhead and underground power lines and additional electrical infrastructure across the mine site.