History in Structure

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Nantlle Tramway River Bridge

A Grade II Listed Building in Bontnewydd, Gwynedd

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Coordinates

Latitude: 53.1149 / 53°6'53"N

Longitude: -4.2724 / 4°16'20"W

OS Eastings: 248006

OS Northings: 359932

OS Grid: SH480599

Mapcode National: GBR 5J.7SR8

Mapcode Global: WH43F.BYRY

Entry Name: Nantlle Tramway River Bridge

Listing Date: 9 September 1999

Last Amended: 9 September 1999

Grade: II

Source: Cadw

Source ID: 22281

Building Class: Transport

Location: The Bridge spans Afon Gwyrfai on the west side of Bontnewydd.

County: Gwynedd

Town: Caernarfon

Community: Bontnewydd

Community: Bontnewydd

Built-Up Area: Bontnewydd

Traditional County: Caernarfonshire

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History

The Nantlle Railway Act was passed in 1825, and the tramway opened in 1828. The tramway was built to connect Talysarn in the slate-quarrying area of Dyffryn Nantlle with Caernarfon. The initiative for the railway came from the proprietors of the Cilgwyn, Penybryn and Talysarn Quarries, who first mooted the idea for a tramway in 1813, to reduce the heavy shipment costs of transporting slate by road. The railway was built by a joint stock company, with Robert Williams of Bangor as resident engineer, Robert Stephenson (junior) and William Owen of Gwaenfynydd as contractors in consultation with George Stephenson. It was built with a 3'6" (1.067m) gauge. The line was taken over by the Caernarvonshire Railway and converted to standard gauge in 1867, and the bridge was then abandoned. The railway is an early example of a public railway, the first public line to serve the slate quarry industry in Wales.

Exterior

Single span narrow bridge over river. Rubble masonry, with high arch. Some loss of stonework in spandrels of archway.

Reasons for Listing

Listed as a fine example of an early railway engineering on an important transport route associated with the growth of quarrying in N Wales. The bridge retains its original character and is a significant relic of this important early tramway.

Other nearby listed buildings

  • II Former railway bridge at Bontnewydd
    Crossing the Afon Gwyrfai and a minor road to Llanfaglan, some 400m W of the A487 in the centre of Bontnewydd.
  • II Plas-y-bont
    Situated on the W side of the A487 in Bontnewydd, some 170m down a track S of the bridge over the Afon Gwyrfai.
  • II Arosfa
    Situated on the E side of the A487 in Bontnewydd, some 30m S of the bridge over the Afon Gwyrfai.
  • II Ty Capel Siloam
    Situated on the E side of the A487 in Bontnewydd, just to the S of Capel Siloam and some 55m N of the bridge over the Afon Gwyrfai.
  • II Capel Siloam
    Situated on the E side of the A487 in Bontnewydd, some 70m N of the bridge over the Afon Gwyrfai.
  • II Newborough Arms
    Situated on the E side of the A487 in Bontnewydd, just N of the bridge over the Afon Gwyrfai.
  • II Craigafon
    Situated on the E side of the A487 in Bontnewydd, some 140m S of the bridge over the Afon Gwyrfai.
  • II Pentre Uchaf
    Situated on the E side of the A487 in Bontnewydd, some 170m S of the bridge over the Afon Gwyrfai.

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