Steel producer ArcelorMittal is developing the Gangra deposit to provide 5 Mtpa of direct shipping iron ore, which required the construction of the following associated infrastructure:
Permanent 14 km haul road
The project entailed upgrading 6 km of existing road and construction of 8 km of new road, designed for 59 t haul trucks. To meet the dry season construction period and expedite feed to the processing plant, a fast-track, low capex solution was provided with an accelerated construction phase.
Dayea river crossing
An Acrow 700XS® panel bridge system was selected as the most appropriate solution. The 50 m single span modular steel bridge has no intermediate piers and concrete cast in-situ abutments.
Water drainage management
To mitigate potential threats to the environment and communities downstream of the mine, ArcelorMittal formed a task group to develop a sedimentation control plan which included erosion control, coarse sediment trapping and sediment removal downstream if necessary.