Llanstinian Bridge (partly in Trecwn) is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 26 August 1988. Bridge.

Llanstinian Bridge (partly in Trecwn)

WRENN ID
second-marble-azure
Grade
II
Local Planning Authority
Pembrokeshire
Constituency
Ceredigion Preseli MP: Ben Lake (PC)
Country
Wales
Date first listed
26 August 1988
Type
Bridge
Address
Llanstinian Bridge (partly in Trecwn), Scleddau
OS grid reference
SM 945 331
Coordinates
51.95905, -4.99233
Source
Cadw listing

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

Description

Llanstinian Bridge is a very narrow bridge of primitive construction, dating back to an earlier period. It features slightly corbelled drystone abutments and uses longer stones for the original nine lintels over the center of the arch. The original bridge is now approximately 1.5 meters below the raised roadway, which has modern facing stones and on-edge slate coping along the parapet.

Local climate

Llanstinian Bridge (partly in Trecwn) sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.

It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 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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