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Viaduct over Nant y Lladron

A Grade II Listed Building in Trawsfynydd, Gwynedd

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Latitude: 52.9322 / 52°55'55"N

Longitude: -3.8233 / 3°49'24"W

OS Eastings: 277542

OS Northings: 338753

OS Grid: SH775387

Mapcode National: GBR 63.M7QM

Mapcode Global: WH66W.7KMH

Entry Name: Viaduct over Nant y Lladron

Listing Date: 27 February 2004

Last Amended: 27 February 2004

Grade: II

Source: Cadw

Source ID: 82545

Building Class: Transport

Location: In an elevated position, set well back from the N side of the A4212 leading W of Trawsfynydd.

County: Gwynedd

Community: Trawsfynydd

Community: Trawsfynydd

Locality: Cwn Prysor

Traditional County: Merionethshire

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Late C19 viaduct, formed part of the Trawsfynydd to Bala section of the Conwy valley line. The Bala to Ffestiniog section of the line was opened on November 1st 1882, passenger services withdrawn on 2nd January 1960 and freight services withdrawn on 27th January of the following year. The Great Western Railway built the line from Bala in a bid to capture a share of the lucrative Blaenau slate traffic, unfortunately it failed to do so. It did, however, get a great share of traffic in terms of troop trains to Trawsfynydd to serve the Army ranges in the mountains to the S-E of the village.


Late C19 viaduct of local stone; comprising 10 round arches.

Reasons for Listing

Included as a C19 railway viaduct which forms a prominent local landmark.

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