Treforest Tinplate Works Feeder Sluice and Weir

The sluice is on the W side of the weir. It has coursed, rubble stone N wall formerly with 2 cast iron sluice gates on the upstream side, now with concrete cappings, metal railings and modern grilles at water level. On the opposite side of the wall is part of a cast iron lintel supported by 2 uprights, through which the water flowed. On the E side is a wall of coursed rubble with rock-faced quoins and dressings. Within a splayed recess is the cast iron frame and lifting rack of a former sluice, downstream from the weir, the purpose of which was the return of water to the river. The concrete block walls of fish pass are topped by metal railings and step down behind the original walls of sluice. Modern sluice gates.

Downstream is an abutting rubble stone river wall but the original watercourse is no longer clearly defined. The masonry weir is curved into the current.