Bridge over Nant Bran near Aberbran-fach Farm (partly in Trallong community) is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 14 April 1966. Field bridge.

Bridge over Nant Bran near Aberbran-fach Farm (partly in Trallong community)

WRENN ID
tenth-bronze-ivy
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
14 April 1966
Type
Field bridge
Address
Bridge over Nant Bran near Aberbran-fach Farm (partly in Trallong community), Yscir, Powys
OS grid reference
SN 987 293
Coordinates
51.95319, -3.47531
Source
Cadw listing

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

Description

This is a field bridge over the Nant Bran, located near Aberbran-fach Farm. It dates back to an unspecified time and features a single arch made of rubble stone. The arch is steeply humped and has a thin crown, with long, thin stone voussoirs. There is no parapet; instead, the bridge has alternately higher and lower square coping stones. The roadway is narrow and cobbled.

Local climate

Bridge over Nant Bran near Aberbran-fach Farm (partly in Trallong community) sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 83% of listed buildings.

It experiences an average of 49 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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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  1. Bridge over Nant Bran near Aberbran-fach Farm (partly in Yscir community) Grade II 19 m
  2. Mill Cottage Grade II 62 m
  3. Farm courtyard at Aberbran Fach Grade II 96 m
  4. Aberbran Fach Grade II 100 m
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  10. Aberbran Fawr Grade II* 416 m