Dolgoch Viaduct is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 15 August 2000. Viaduct.
Dolgoch Viaduct
- WRENN ID
- nether-courtyard-willow
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 15 August 2000
- Type
- Viaduct
- Address
- Dolgoch Viaduct, Bryn Crug, Bryn-Crug, Gwynedd
- OS grid reference
- SH 650 045
- Coordinates
- 52.62149, -3.99502
- Source
- Cadw listing
Description
Dolgoch Viaduct is a bridge constructed from red brick with stone dressings that have flush margins. It features three segmental arches supported by two tall, slightly tapered piers, each standing 10.3 meters high above a chamfered base. The structure carries the track 15.4 meters (50 feet 6 inches) above the water. The central arch spans 9.2 meters, and the overall width of the viaduct is 2.8 meters. At mid-span, there is a triangular refuge that is cantilevered out, equipped with four simple horizontal railings threaded through iron stanchions, which are set on the low parapets. The bridge has stone chamfered revetments. It was rebuilt above the arch tops between 1969 and 1970, and steel bars with square restraining plates have been installed below the parapets.
Local climate
Dolgoch Viaduct sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 10 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
Sign in or create a free account to unlock:
- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings