The Pontsarn Viaduct was built in the 1860’s to carry the Brecon and Merthyr Railway over the river was designed and built by Savin and Ward and their engineer Alexander Sunderland (as was the Cefn viaduct).
It has 7 spans and is an historic listed structure. It is situated in an area of natural beauty, with “the Blue Pool” and waterfall nearby. The Pontsarn Station, with its own Stationmaster and Porter, was once a busy link until it closed in the 1960’s.
