Rather surprisingly given its duplication of the GWR route, parts of the WMCQ Brymbo branch remained open under British Railways until as late as 1970. After initial closure in 1954, a section from Gwersyllt to a coal distribution centre at Gatewen was reopened in 1958, while part of the top end of the line, from a reinstated connection with the ex-GWR line at Broughton Forge Junction (Plas Power) to the site of the former WMCQ Brymbo station and on to Brymbo Fishponds Sidings, was not taken out of use until 1970.