Morfa Bach Access Underbridge (West) is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 5 April 2016. Railway bridge.

Morfa Bach Access Underbridge (West)

WRENN ID
last-landing-coral
Grade
II
Local Planning Authority
Neath Port Talbot
Constituency
Aberafan Maesteg MP: Stephen Kinnock (Lab)
Country
Wales
Date first listed
5 April 2016
Type
Railway bridge
Address
Morfa Bach Access Underbridge (West), Margam Moors
OS grid reference
SS 798 831
Coordinates
51.53407, -3.73389
Source
Cadw listing

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

Description

Morfa Bach Access Underbridge is a railway bridge built as a single span masonry underbridge featuring projecting wingwalls. It is constructed from coursed and squared rock-faced sandstone, with rusticated voussoirs. The bridge has a parapet that includes later metal railings.

Local climate

Morfa Bach Access Underbridge (West) sits in one of the wettest parts of the UK, with an average of 1,220 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 95% of listed buildings.

It experiences an average of 23 freeze-thaw cycles a year, fewer than 76% of listed buildings. Of these, 9 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
  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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