We redeveloped the 17th Construction Squadron, 6th Engineer Support Regiment, including its relocation to the RAAF Base in Amberley, Queensland. The project was completed in five stages, including construction of a fire training area; refurbishment of existing buildings and amenities; and building new facilities including offices, workshops, plant rooms, shelters and a car park. The fire training area included a circular concrete slab with a diameter of 200 metres, the design of which involved approximately 50 pours and substantial pour breaks. Through a deed of amendment, BESIX Watpac designed and constructed a post-tensioned slab which involved only 13 pours and was quicker to construct. Through this improved methodology, BESIX Watpac provided the Commonwealth with a more suitable product at a significant cost saving.