The line passed to the Scottish Region of British Railways upon nationalisation in 1948 who then officially closed Balmore in 1951.

The line suffered greatly from competition by bus services although the station was located conveniently near to the small village.

In 1956 the Torrance to Kelvin Valley East Junction closed and the surviving section of the west part of the line was utilised for drivers being trained to use DMU's.

In 1960 an SLS enthusiasts' railtour ran on the line, hauled by the preserved locomotive 'Glen Douglas'.

[4] In 1958 the station is no longer shown, however the siding remains and to the east a mineral line diverges off to the Balmore Colliery mine, lying below Bargeny Hill, that closed in 1960.