Ynysmeudwy Uchaf Overbridge on Swansea Canal is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 26 October 1979. House.

Ynysmeudwy Uchaf Overbridge on Swansea Canal

WRENN ID
under-bastion-raven
Grade
II
Local Planning Authority
Neath Port Talbot
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
26 October 1979
Type
House
Address
Ynysmeudwy Uchaf Overbridge on Swansea Canal, Pontardawe
OS grid reference
SN 740 057
Coordinates
51.73594, -3.82519
Source
Cadw listing

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

Description

Ynysmeudwy Uchaf Overbridge is a canal overbridge dating from the 19th century. It is constructed of rubble stone and features a single segmental arch made with tooled cut stone voussoirs. The soffit of the arch is supported by five iron ribs bolted at each end. The parapets consist of large rubble stone slabs on the northwest side, while the rest of the parapets have presumably been removed and repaired with cement. There is a small buttress on the northeast towpath side, which also includes a ramp providing access to the towpath level.

Local climate

Ynysmeudwy Uchaf Overbridge on Swansea Canal sits in one of the wettest parts of the UK, with an average of 1,380 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 12 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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