A scheme of excavation and recording was undertaken on an exposed sluice and culvert situated at the terminus of a leat, located 60m south of Papplewick Lane, Papplewick. The works were carried out between July 2011 and July 2014. The water system for the Robinson Mills was constructed between 1778 and 1830, although there may have been a mill (or mills) on this site before that. Evidence on the 1835 Sanderson map and 1847 Montagu estate map, suggest that there was a holding pond confined withi Grange Cottages Wood, which may have acted as storage, and a leat which then transferred water to the mill which is known to have stood to the south of this site. Excavations revealed two stone sluice walls, aligned north-south, approximately four metres wide and angled to form a funnel. They were both damaged. A cross wall and arch were revealed to connect the two sides of the sluice together, however only the brick 'springer' courses of the arch remained intact. The western side of the cross wall appears to have been keyed in with the western face of the sluice. A brick culvert was revealed below the cross wall rubble, extending 3.05m further to the north. Both ends of the culvert had been badly damaged, possibly to denude the structure so that it could be covered up during landscaping, leaving none of it exposed. It is unknown as to why the culvert was built. However it is suggested that it was either due to the arch collapsee necessitating another through flow, or that it was built to narrow the passage to compensate for a decrease in flow. The culvert was packed around with a clay lining. A small dry stone wall to the north was revealed, abutting the sluice walls and the clay, this could have been built to channel flow into the culvert. A number of finds dating from the late 18th century to the early 20th century were retrieved during the excavation. It is unknown when the culvert and cross wall were destroyed. Following this, the entire structure was buried completely.