Bridge over Nant Melyn is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 16 February 2022. Bridge.
Bridge over Nant Melyn
- WRENN ID
- stony-flue-magpie
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 16 February 2022
- Type
- Bridge
- Address
- Bridge over Nant Melyn, Llyn Y Fan Fach, Llanddeusant, Carmarthenshire
- OS grid reference
- SN 800 237
- Coordinates
- 51.89945, -3.74422
- Source
- Cadw listing
Description
The bridge over Nant Melyn is a two-span structure made of rubble stone. It features parapets with large coping slabs and low segmental arches supported by shallow piers. In the center, there is a V-shaped cutwater. The abutments are slightly splayed out, and the watercourse beneath the bridge is paved with stone.
Local climate
Bridge over Nant Melyn sits in one of the wettest parts of the UK, with an average of 1,460 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.
It experiences an average of 53 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 30 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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