Quarry Incline at Cwm Penmachno (Lower Part) is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 17 July 1992. Incline.
Quarry Incline at Cwm Penmachno (Lower Part)
- WRENN ID
- heavy-cobalt-moss
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 17 July 1992
- Type
- Incline
- Address
- Quarry Incline at Cwm Penmachno (Lower Part), Bro Machno, Conwy
- OS grid reference
- SH 751 469
- Coordinates
- 53.00512, -3.86247
- Source
- Cadw listing
Description
The Quarry Incline at Cwm Penmachno is a water balanced incline featuring two tracks, designed into a series of quarry terraces. Constructed from slate waste rubble, the incline has two parallel tracks that are set at slightly different angles. The tracks are surfaced with flat slabs. At the top of the incline, the trackway is positioned at a lower level between a platform made of slate rubble masonry. At the bottom of the incline, there is a flat track with a slab surface.
Local climate
Quarry Incline at Cwm Penmachno (Lower Part) sits in one of the wettest parts of the UK, with an average of 1,370 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.
It experiences an average of 49 freeze-thaw cycles a year, more than 90% of listed buildings. Of these, 29 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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