Mill dam, mill race, weir and sluice gates for the former Rishworth Mill

MATERIALS: stone lined channels, iron, wooden and stone sluice gates.

EXTERIOR: the feed for the mill dam is taken from Booth Dean Clough which runs approximately northwards to pass through the area of Rishworth Mill towards Ripponden. There is a weir on the stream from which a leat leads off to the east via a sluice mechanism with iron uprights and stone plates; only part of the winding mechanism remains. The leat runs through a narrow stone-lined channel to the south-eastern end of the mill dam. The dam, which is an elongated oval aligned south-east to north-west, has a stone-lined outlet at the northern end, and the remains of a wooden gate nearby. The outlet race runs north in a stone lined channel, towards a sluice gate that retains a wooden and iron winding mechanism with a ratchet and wheel. An overflow channel leaves the race half way along its west side to join the Booth Dean Clough where it runs alongside at a lower level. Beyond the top sluice the race runs underground, below Rishworth Mill Lane, towards the surviving mill buildings to the north.