Renovating the Leopold II tunnel has been on our list of tasks since 2018. The longest and most complex tunnel in Brussels is showing its age after more than 30 years of use. Renovation is needed to upgrade the water tightness, road surface, and electromechanical installations.

Guarantee safety

Every day, the Leopold II tunnel is used by 40,000 Brussels residents and commuters. The 2.5-km tunnel between Koekelberg Basilica and Brussels inner ring road has suffered a lot of wear and tear since it was built in 1986. A complete refurbishment is needed to bring the tunnel up to current and future standards, in terms of both safety and operation. The main focus is on improving safety, energy efficiency, and sustainability.

ENGIE Fabricom’s role

ENGIE Fabricom’s task is to make sure that all the tunnel’s electromechanical equipment complies with current regulations. We are using the latest technology and various backup systems to maximise the safety of the users and availability of the tunnel,

This includes:

  • The overall design
  • The power supplies to all systems (HV boards, LV distribution devices, cable network)
  • Emergency power supplies (UPS, diesel)
  • Modernising and extending fire protection (both detection and extinguishers)
  • Emergency exit equipment (security cameras, lighting, phones and sound engineering)
  • Installing a fibre-optic network to transmit high-definition camera images and radio
  • LED lighting to reduce electricity consumption by more than 60%
  • Ambient lighting at the entrance and inside the tunnel
  • Installing more than 200 cameras (surveillance, traffic flow, low-emission zone controls, etc.)
  • Installing dynamic information signs
  • Local control, remote control and monitoring of the installations
  • After completion of the work, ENGIE Fabricom will be responsible for tunnel maintenance for the following 25 years.