Soumagne Tunnel

The tunnel of Soumagne ( tunnel de Soumagne ) is the longest rail tunnel in Belgium. Built in conjunction with the high speed line HSL 3 structure overcomes a difference in altitude of 120 m. After four years of construction, the trains since 2009 at a rate of up to 200 km / h The west portal is located in Vaux- sous- Chevremont in the valley of the Vesdre, the eastern portal in Ayeneux on the Plateau de Herve at an altitude of 210 m. The tunnel passes under the communities of Chaudfontaine, Fléron, Olne and Soumagne. The slope is between 1.7% to 2%.