High Quality Content by WIKIPEDIA articles The B rum Tunnel (Norwegian: B rumstunnelen) is a 5.5-kilometer (3.4 mi) long double track railway tunnel in B rum, Norway. Running between Marstranderveien and Engervannet, it will make up most of the 6.7-kilometer (4.2 mi) long section of the Asker Line between Lysaker Station and Sandvika Station, which was taken into use on 26 August 2011. The tunnel was constructed from 2007 using the drilling and blasting...