Brussels-South railway station
The first section of this tunnel was opened on 4 October 1976 between Brussels-North and Lemonnier premetro station. It was then expanded to Albert in 1993. It is currently used by tram routes 3, 4, 51 and 82 as well as evening routes 31, 32 and 33. Only routes 3, 4 and 33 use the full tunnel. Routes 31 and 32 use it between the North and South station, route 51 between Lemonnier and Albert and route 82 between Lemonnier and Brussels-South railway station.