Engine House and Associated Buildings from the Middle Engine Pit, About 15 Metres South East of the Elms is a Grade II listed building in the North Somerset local planning authority area, England. First listed on 10 July 1985. Engine house.
Engine House and Associated Buildings from the Middle Engine Pit, About 15 Metres South East of the Elms
- WRENN ID
- gentle-quoin-plum
- Grade
- II
- Local Planning Authority
- North Somerset
- Constituency
- North Somerset MP: Sadik Al-Hassan (Lab)
- Country
- England
- Date first listed
- 10 July 1985
- Type
- Engine house
- OS grid reference
- ST 482 705
- Coordinates
- 51.43168, -2.74622
- Source
- Historic England listing
Description
The engine house and associated buildings from the Middle Engine Pit, located about 15 metres southeast of The Elms, date from 1792 to 1837. The engine house, which housed a rotative beam engine, is built of sandstone rubble and features large quoins and a plain tiled roof. It has a rectangular plan and was originally used for pumping, with a drive shaft that emerged through the wall. The engine house also served as a water tower and is taller than it was originally.
Approximately 1.5 metres high and situated about 3 metres north of the engine house are the foundations of a horse whim house, which was used for winding during the sinking of the shaft and later for maintenance. About 30 metres to the north is the weighbridge house, a small rectangular rubble building that was overgrown with ivy at the time of the survey in March 1985.
A map prepared by the Royal Engineers in 1830 referred to the pit as 'Old Nailsea Pit', indicating that the workings reached a depth of 200 feet. The Middle Engine Pit likely worked the Whites and Dungy seams across an area extending from the Trendlewood quarries to the lane down Golden Valley, and from Nailsea Park and Station Road to Trendlewood.
Local climate
Engine House and Associated Buildings from the Middle Engine Pit, About 15 Metres South East of the Elms receives an average of 850 mm of rain a year. This makes it wetter than 60% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 69% of listed buildings.
It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% of listed buildings. Of these, 13 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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