 Between 1949 and 1955, all the Class 2 and 3 trams were retired — Trondheim became one of the first cities in Europe to completely abandon two-axle trams, though the older trailers remained in service.In 1955, three second-hand trailers were bought from Belgium.In 1949, a new bridge was built between Søndre gate and the railway station, and for a short period line 2 and 3 terminated at Søndre Gate.