The line originally had just a single track but was doubled to the west on 11 June 1893 and from the far side of the viaduct to the east on 13 August 1893. A new stone viaduct to replace Isambard Kingdom Brunel's timber structure was brought into use in 1894 and allow the joining up of the double-track sections. This was on a new alignment which forced the construction of a new westbound (down) platform further back from the old line. The up platform was widened and this left the building set back at an odd angle to the track.