McCosker’s have been performing Tailing dam wall construction for QAL since 2006. Over this time they have performed all aspects of residue management, dam wall raisers and repairs for all maintenance and operations works at the RDA, Ash Dams and associated structures.

Specifically the supply, supervision and operation of plant for civil work and maintenance, including; dam maintenance, up-­stream wall raises, operation and maintenance of dewatering pumps and piping systems, road and drain maintenance, sediment control structures, decant structures, HDPE installation and welding, dam wall raises and repairs.