This Ausgrid project set out to replace the existing steel electricity towers that no longer met the required structural reliability and capacity requirements to meet failure mode configurations. The solution to increase the network security was a dual concrete pole system. 

Environmentally Sensitive 

Works took place within Georges River National Park in NSW and required the removal of a number of trees to enable the works to be carried out efficiently. Significant geotechnical testing and surveying was undertaken in collaboration with a specialist ecologist to mitigate and minimise removal requirements. A detailed reinstatement plan was developed to restore the National Park Bushland to meet National Parks and Wildlife standards and expectations. Vaughan successful oversaw the reinstatement which included over 4000 Native plants of 43 different species. 

Scope of Works 

• Utility service locating and non-destructive potholing 

• Construction of Pole Storage area to accommodate 6x Concrete Poles between 40M – 42M in length 

• Installation of 50mm Heavy Vehicle bridging plate across existing TransGrid stormwater culvert to allow access for 150T Crane into new Transmission Pole site 

• Excavation of New Earth Trenches for Concrete Pole Earthing 

• Level and compact existing ground following completion of vegetation removal 

• Repair existing Access Tracks from the Pole Storage area to the proposed work areas 

• Construction of new EWP, Piling Rig & Crane work pads 

• Geotechnical testing and certification of bearing capacity for Crane, Piling Rig and EWP work pads 

• Survey and set-out for new Transmission Pole locations and establish recoverable R.L’s and off-sets 

• Auger 6 x 1500mm dia holes 5.0m deep with vertical Mast Borer with GPS.