Tunnel contract for Hong Kong airport

Balfour Beatty’s 50:50 joint venture, Gammon Construction, has been awarded a HK$7.2 billion (US$940 million) contract to deliver tunnels and associated works for an automatic people mover (APM) and baggage handling system (BHS) at Hong Kong International Airport on behalf of Airport Authority Hong Kong.

The contract will see Gammon deliver two 1800m-long eight-cell tunnel structures for the APM and BHS systems as well as all electrical and mechanical works for the tunnels.

Additionally, Gammon will construct several support buildings including pumping stations, a datacentre and security facilities.

The APM and BHS tunnels and the associated works form a major part of the Three Runway System (3RS) project at the airport and will ultimately allow travellers to move between the new Third Runway Concourse and the expanded Terminal 2.

Gammon will deploy modular solutions for 75% of the electrical and mechanical works for the tunnels. In line with Balfour Beatty’s commitment to reducing onsite activity by 25% by 2025, this approach will see activities carried out off site to ensure enhanced health and safety, increased productivity and reduce the duration of the works.

The news release adds that all offsite activities will be monitored with the use of the real-time technology system, STAMP, throughout the build process to further enhance the quality and production of works, as well as enhancing the safe and efficient delivery of products to site.

At construction peak, the project will employ a workforce of around 1,500.