Due to swelling events and the associated heave and damage to the tunnel inner lining, it was planned to install protective netting in the area of the tunnel roof and the upper side walls.

New storage channel in Brussels East stores up to 8,000 m³ of rainwater and provides relief during heavy rainfall.

Twin-tube road tunnel under the River Thames, 2 x 1,400 m long, internal diameter 10.66 m, external diameter 11.45 m, Access ramps, 600 m in length