Mill Race Reservoir Retaining Wall and Sluice South of Leap Mill Farmhouse is a Grade II listed building in the County Durham local planning authority area, England. First listed on 21 January 1987. Mill race reservoir retaining wall.

Mill Race Reservoir Retaining Wall and Sluice South of Leap Mill Farmhouse

WRENN ID
deep-corridor-umber
Grade
II
Local Planning Authority
County Durham
Constituency
Blaydon and Consett MP: Liz Twist (Lab)
Country
England
Date first listed
21 January 1987
Type
Mill race reservoir retaining wall
Address
Mill Race Reservoir Retaining Wall and Sluice South of Leap Mill Farmhouse, Busty Bank
OS grid reference
NZ 175 571
Coordinates
54.9091, -1.72741
Source
Historic England listing

Also on this page: EPC · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Mill Race Reservoir retaining wall and sluice, located south of Leap Mill Farmhouse, dates from the 18th century. It is constructed of coursed squared sandstone and stands approximately 2 metres high. The retaining wall extends about 5 metres on either side of the sluice, featuring a stone slab that rests on the side projections. The mill race walls continue from the sluice towards the aqueduct that is attached to Leap Mill Farm.

Local climate

Mill Race Reservoir Retaining Wall and Sluice South of Leap Mill Farmhouse receives an average of 810 mm of rain a year. This makes it wetter than 50% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 99% of listed buildings.

It experiences an average of 40 freeze-thaw cycles a year, more than 77% of listed buildings. Of these, 24 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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