Bridge over Grwyne Fawr, Llanbedr is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 19 November 1998. Bridge.

Bridge over Grwyne Fawr, Llanbedr

WRENN ID
distant-rampart-hazel
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
19 November 1998
Type
Bridge
Address
Bridge over Grwyne Fawr, Llanbedr, the Vale of Grwyney, Powys
OS grid reference
SO 242 202
Coordinates
51.87528, -3.10147
Source
Cadw listing

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

Description

The bridge over the Grwyne Fawr in Llanbedr is a single-carriageway structure built in the late 18th century or 19th century using rubble sandstone. It features a segmental arch supported by splayed abutments, with thin voussoirs. The parapets have been rebuilt and curve outwards at both ends.

Local climate

Bridge over Grwyne Fawr, Llanbedr sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.

It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 27 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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  • Detailed attributes — period, style, materials, features
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