Gwastad Bridge over the Monmouthshire and Brecon Canal and Lock (partly in Shaftesbury Community) is a Grade II listed building in the Newport local planning authority area, Wales. First listed on 24 June 1999. Bridge.

Gwastad Bridge over the Monmouthshire and Brecon Canal and Lock (partly in Shaftesbury Community)

WRENN ID
mired-basalt-falcon
Grade
II
Local Planning Authority
Newport
Constituency
Newport East MP: Jessica Morden (Lab)
Country
Wales
Date first listed
24 June 1999
Type
Bridge
Address
Gwastad Bridge over the Monmouthshire and Brecon Canal and Lock (partly in Shaftesbury Community), Blaen-Y-Pant Cresent, Bettws
OS grid reference
ST 300 897
Coordinates
51.60206, -3.01163
Source
Cadw listing

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

Description

Gwastad Bridge spans the Monmouthshire and Brecon Canal and includes a lock chamber to the north. This bridge, which carries a public footpath, features a single arch made of rubble with a segmental arch composed of stone voussoirs. The northern side has stone slab coping, while the southern side has cement coping. A stone plaque is set into the northern parapet, commemorating the restoration that took place in 1974. The southern side has splayed revetments, and the northern parapet walls extend as a retaining wall for the lock platform. An iron plaque on the southern face of the bridge identifies it as 'Gwastad No. 26 Bridge'. The lock chamber is also constructed of rubble and has sandstone copings, with lock gates that were installed in 1974. An overflow culvert is located to the east, and a towpath runs along the western side of the bridge.

Local climate

Gwastad Bridge over the Monmouthshire and Brecon Canal and Lock (partly in Shaftesbury Community) receives an average of 930 mm of rain a year. This makes it wetter than 71% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 72% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 55% of listed buildings. Of these, 14 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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