 In 1922, a railway viaduct built in 1893 was demolished together with the old bridge, both replaced by a single-leaf bascule bridge with its concrete counterweight hanging over the 14 metres wide roadway shared by trains and vehicles.On the eastern side of the canal a concrete viaduct connected to the bridge, and the bridge's load-carrying steel trusses left a horizontal clearance of 12.5 metres for the ships below.To deal with increasing postwar traffic loads, the capacity of the bridge was increased in 1956 by adding a new bridge south of and parallel to the old, the two structures separated by less than a metre.