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Railway Viaduct

A Grade II Listed Building in Pontlottyn, Caerphilly

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Latitude: 51.7483 / 51°44'54"N

Longitude: -3.281 / 3°16'51"W

OS Eastings: 311663

OS Northings: 206292

OS Grid: SO116062

Mapcode National: GBR HS.15FF

Mapcode Global: VH6D0.2BT2

Plus Code: 9C3RPPX9+8J

Entry Name: Railway Viaduct

Listing Date: 15 July 1993

Last Amended: 15 May 2001

Grade: II

Source: Cadw

Source ID: 13588

Building Class: Transport

Location: Located parallel to A469 in the centre of the village, the former historic core.

County: Caerphilly

Town: Rhymney

Community: Rhymney (Rhymni)

Community: Rhymney

Locality: Pontlottyn

Built-Up Area: Pontlottyn

Traditional County: Glamorgan

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Built in 1857 by the Rhymney Railway Company to designs of Joseph Cubitt who also built the Bargoed Viaduct on the same line. The Rhymney Railway Company was incorporated in 1854 to build a line to serve the Rhymney Ironworks, initially to link the Newport, Abergavenny and Hereford Railway at Hengoed, but the scheme was revised in 1855 to link with the Taff Vale Railway at Taffs Well from where traffic was carried down to the Bute East Dock. Line opened 1858. Still in use. Former site of the Railway Inn, built beneath 3 arches near S end, as this was the only land in Pontlottyn free from Temperance Restrictions, as it was owned by the railway company, not the local abstaining Williams family; demolished late 1990s.


10-arch, single track, railway viaduct. Built of snecked rock-faced rubble with some tooling especially to arch interiors, also plain tooled arises to arches and imposts. Round-headed arches, voussoirs and double bandcourse at parapet level; impost course extends along inner face of arches; flat rock-faced coping to the parapet; sloping buttresses at both ends which are ramped and splayed outwards. Some added buttresses to E and iron braces; cast iron downpipes between each arch to W.

Reasons for Listing

Listed as a well-preserved Welsh railway viaduct dating from the mid C19 industrial expansion.

Recommended Books

Other nearby listed buildings

  • II Church of St Tyfaelog
    Situated in a grassy churchyard which slopes down to E, set back from the main thoroughfare; surrounding wall is of stone with gate-pier entrances and walled steps down at W and SW.
  • II Former Pay Office Noddfa Buildings
    Near the Rhymney River and Railway and the entrance to the site of the former Rhymney Ironworks
  • II Nos 1 and 2 The Lawn
    On sloping ground between the main thoroughfare, High Street, and Rhymney River and Railway, backing onto the hillside road and overlooking an open area known as The Lawn.
  • II The Vicarage
    Set on the sloping ground of The Lawn, just off the High Street and close to the village centre.
  • II Ysgol Lawnt
    Situated near the bottom of the sloping road leading from the High Street to Rhymney River and Railway.
  • II War Memorial
    In the centre of Rhymney village, facing along the main thoroughfare, in a modern railed enclosure.
  • II House and attached garden wall
    The Terrace runs parallel with the Rhymney River along its E bank: this building is at the S end of the listed group, attached at right angles to the terrace range.
  • II No.8 The Terrace and attached garden wall with gate piers
    The Terrace runs parallel with Rhymney River along its E bank: this terrace forms the centre of the listed group.

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