FY21 Surface Water Management

Project Overview

Fortescue Metals Group (FMG) required additional surface water infrastructure at its Cloudbreak, Christmas Creek and Solomon mine sites to support furture road infrastructure works and mining activities.

The works involved the installation of 3 groups of corrugated steel pipes (CSP or culverts) to light vehicle roads and heavy vehicle roads that service the sites and the construction of a light vehicle road.
The installation of the culverts in the works are intended to control the water flow (primarily from rain) so that it does not pond on roads, which may cause roads to be shut down or accidents or erosion to occur.

Fast Facts

  • ClientFortescue Metals Group
  • LocationNullagine
  • Year of completion2020

Scope of works

  • Clearing and grubbing of any topsoil material
  • Excavation of culvert trenches, prepare foundation of in-situ
    material and place a 150mm thick compacted-bedding layer
  • Load, transport and unload all culvert pipes
  • Survey level & alignment of culverts
  • Assemble and install client-supplied culverts
  • Mix and install the Cement Stabilising Fill (CSF)
  • Place and compact the remainder of the backfill material
  • Finish road surfaces, surface grade, stream train at inlet and
    outlet and pull back batters
  • Installation of Bidim A34 geofabric to culvert headwalls and
  • Place rock armour to culvert headwalls and aprons

Related projects