The Kingsford Smith Domestic Airport is situated eight kilometres from Sydney’s central business district and is the busiest domestic airport in Australia, welcoming 27.7 million passengers in 2018 through two terminals.

Various airlines transport passengers and cargo to capital cities and regional centres, specifically, Terminal 2 is used by Jetstar, Virgin Australia, Regional Express and Tigerair, and Terminal 3 is used by Qantas and Qantaslink.

Terminal 1 serves as international gateway for passengers arriving and departing in Australia.

BG&E provided structural engineering and materials testing services for the $17 million car park at the domestic airport, which consists of 10 levels of above ground and external ramps.

The car park structure has post-tensioned band beams spanning 17.5 metres and slabs spanning more than eight metres. The large-sized spans were incorporated to accommodate the Sydney Airport Corporation’s requirements.

Building foundations consist of continuous flight auger piles that are 25 metres deep to reach the sandstone bed. The crash barriers were provided by using reinforced concrete upstands and tensioned cables.