[6] Clydach opened in December 1863 and first appeared in Bradshaw in January 1864, [7][8] The station was situated below a quarry-scarred mountainside at the top of which were houses bordered by rock and scree situated ominously near the edge.

[5] The station was east of Clydach Viaduct composed of eight semi-circular arches built of old red sandstone with 30-foot (9.1 m) spans on a curve of 10 chains (200 m) radius at a gradient of 1 in 38.

[10] The siding trailed off upwards to the north-east at the western end of the viaduct where a weighing machine and office were installed in the fork of the junction.

[18][16] Decline in local industry and the costs of working the line between Abergavenny and Merthyr led to the cessation of passenger services on 4 January 1958.

Parts of the platforms and the station house have survived and are divided between two private owners.