Llangollen Canal part of the London Midland and Scottish Railway soon afterwards. After the takeover by the London Midland and Scottish Railway, regular maintenance was often not carried out, and gradually the canals silted up, so that boats could not operate with full loads. Traffic declined, and was significantly affected by a breach that occurred at the Perry Aqueduct, about to the south of Frankton locks, which effectively closed the Montgomeryshire Canal to all traffic. Traffic beyond Frankton to Llangollen had ceased in 1937, and the Frankton to Hurleston section was not used after 1939. The London Midland and Scottish Railway obtained
Llangollen Railway society refocused its attention on the Llangollen to Corwen section of the Ruabon to Barmouth line. The local council granted a lease of the Llangollen railway station building and of track to the society, with the hope that the railway would improve the local economy and bring more tourists to Llangollen. The station reopened on 13 September 1975, with just of track. Early progress was slow due to a lack of funding, though in 1977 Shell Oil donated a mile of unused track. Volunteers started laying the track with the aim of reaching Pentrefelin, from Llangollen. Work finished in July