August 2005 saw the start of our contract for Gleeson Construction Services for the installation of 9.0m long sheet piles forming two cofferdams to house the construction of a new selector tank and aeriation tank at Perth Waste Water Treatment Works.
These piles were installed using our 14m Zeppelin Leader Rig. Upon installation the temporary frames were fixed ready for the main contractor to commence their excavation. We returned to site seven months later and commenced the extraction of the sheet piles.