Brussels International Airport: new terminals and high-speed rail connection

In the early 1990s, a new 7-storey terminal building joined the existing terminal, along with a 3-storey "Pier B" and a series of access bridges and roads. 20 metres below ground, a complete rail station was built to facilitate connections with the high-speed train network. In the process, BESIX built a 300-metre rail tunnel under the road infrastructure and another 400-metre tunnel beneath the runways, between the passenger terminal and the future Pier A.