White Bridge (The Bacule railway bridge) is a Grade II* listed building in the local planning authority area, Wales. First listed on 5 December 2002. A Victorian Railway bridge.
White Bridge (The Bacule railway bridge)
- WRENN ID
- final-quoin-cream
- Grade
- II*
- Local Planning Authority
- Constituency
- Caerfyrddin MP: Ann Davies (PC)
- Country
- Wales
- Date first listed
- 5 December 2002
- Type
- Railway bridge
- Period
- Victorian
- Address
- White Bridge (The Bacule railway bridge), Rhydygors, Carmarthen, Llangunnor, Carmarthenshire
- OS grid reference
- SN 405 192
- Coordinates
- 51.84892, -4.31662
- Source
- Cadw listing
Description
The White Bridge, also known as the Bacule railway bridge, is a railway bridge featuring five fixed spans and one roller lift span. It is supported by fourteen iron cylinders, which are weighted with concrete and braced by lattice girders. The bridge is decorated with cast-iron moulded capitals and carries a steel superstructure made up of cross-girders and rail-bearers that rest on bearing girders. The parapet consists of solid panels topped with lattice-work, and three-sided cast-iron pilasters define the bays of each span. The abutments and the sub-structure of the lifting mechanism are made of brick.
The westernmost lifting span is a balanced cantilever, supported on steel-plate bearing girders and two sets of cylinders. The lattice girders curve down to align with the parapet of the main bridge. Steel-plate cross girders and rail bearers are arranged such that the cross girders alternate projections to support the outriggers of the main girders. The moving span is operated by a gearing system mounted on trestles on cantilevers on either side of the bridge. A curved rack is attached to the outer face of the main girders, driven by pinions that are powered by wheels. Although these operational details remain intact, the small power house that once housed the electric motor on the south side of the bridge is now in a state of disrepair.
Local climate
White Bridge (The Bacule railway bridge) sits in one of the wettest parts of the UK, with an average of 1,320 mm of rain a year. This makes it wetter than 95% 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 21 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 8 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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- No EPC on record for this property
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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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