Built between 1846-49 by the York Newcastle & Berwick Railway, Twizel Viaduct comprises six flat arches, extending for 136 yards between its two abutments at a height of 90 feet. Also known as St Cuthbert’s Viaduct, it is now protected by a Grade II listing and looked after by the British Railways Board (Residuary). They know it as structure KLO/26.

It first took the strain of a train on 27th July 1849 and saw its last one in March 1965, having waved goodbye to its passenger service in June 1964.