Greenlaws West Level Portal Arch at Middle Level Mine is a Grade II listed building in the County Durham local planning authority area, England. First listed on 5 June 1987. Mine portal.

Greenlaws West Level Portal Arch at Middle Level Mine

WRENN ID
steep-finial-violet
Grade
II
Local Planning Authority
County Durham
Constituency
Bishop Auckland MP: Dr Sam Rushworth (Lab)
Country
England
Date first listed
5 June 1987
Type
Mine portal
Address
Greenlaws West Level Portal Arch at Middle Level Mine, Stanhope
OS grid reference
NY 888 369
Coordinates
54.7276, -2.17433
Source
Historic England listing

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

Description

The Greenlaws West Level Portal Arch at Middle Level Mine is a portal arch for a lead mine level, built around 1860. It is constructed from coursed squared sandstone rubble and features a U-plan design. The retaining wall is approximately 2 meters high and includes a partly-blocked arch, with left and right returns that extend onto the slope of the hill behind.

Local climate

Greenlaws West Level Portal Arch at Middle Level Mine sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 65% of listed buildings.

It experiences an average of 70 freeze-thaw cycles a year, more than 99% of listed buildings. Of these, 49 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.

More on this building

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