Iron Tram Bridge, Robertstown

The Iron Tram Bridge, Robertstown is an early example of a "railway" bridge. It crosses the River Cynon between Trecynon and Robertstown. It carried the Llwydcoed Tramroad (4 ft gauge) which ran from Hirwaun to the canal head at Cwmbach, south east of Aberdare. It was built by the Aberdare Canal & Navigation Company in 1811, and probably designed by George Overton.

Little remains of the tramroad but its route is now a footpath. The bridge is a scheduled monument and a Grade II listed building.

The bridge was declared unsafe and was completely removed for renovation. As of 2024 the bridge reopened.