History in Structure

Torpantau tunnel - E portal

A Grade II Listed Building in Talybont-on-Usk, Powys

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Coordinates

Latitude: 51.8448 / 51°50'41"N

Longitude: -3.3712 / 3°22'16"W

OS Eastings: 305633

OS Northings: 217132

OS Grid: SO056171

Mapcode National: GBR YQ.TSH8

Mapcode Global: VH6CC.JW3N

Plus Code: 9C3RRJVH+WG

Entry Name: Torpantau tunnel - E portal

Listing Date: 17 December 1998

Last Amended: 17 December 1998

Grade: II

Source: Cadw

Source ID: 21176

Building Class: Transport

ID on this website: 300021176

Location: On the mountainside within a forestry plantation almost due W of Pont Blaen-y-glyn and below the summit of Coetgae-llwyn.

County: Powys

Community: Talybont-on-Usk (Tal-y-bont ar Wysg)

Community: Talybont-on-Usk

Locality: Taf Fechan

Traditional County: Brecknockshire

Tagged with: Tunnel Tunnel portal

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Pont Sticill

History

Part of Brecon and Merthyr Railway constructed 1860s, the line substantially supported by Brecon bankers and the de Winton family of industrialists with the aim of transporting coal and iron from the industrial valleys to S. First section between Brecon and Pant near Dowlais opened 1863, later extended to Dowlais; branch line to Merthyr from Pontsticill Junction followed Taf Fechan River opened 1868. Engineer for Brecon/Pant section Henry Conybeare and for Pontsticill to Merthyr Alexander Sutherland. The engineering achievement of this line is described by Barrie as "the famous Seven Mile Bank, constructed throughout on a shelf cut into the hillside and falling towards the Usk for the first half-mile at 1 in 68 and then for 61/2 miles at 1 in 38 so that southbound trains have to overcome a rise of 925 feet in seven miles". Closed 1960s.

Exterior

Semi-circular arched portal of coursed rock-faced stone, prominent rock-faced voussoirs with diamond shaped ends and dressed tooled edges, similar to quoins; rockfaced string, angled end piers and large rockfaced coping blocks. Inside the tunnel portal the sides are of giant rockfaced stone blocks to impost level, tooled above, with coursed rubble vaults. Some brick further inside tunnel and then cut directly into rock.

Reasons for Listing

Listed together with the W portal as a good example of C19 railway engineering and a surviving feature of the Brecon and Merthyr Railway.

External Links

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.

Recommended Books

Other nearby listed buildings

  • II Torpantau tunnel - W portal
    By the mountain road near Taf Fechan Forest, N of Pentwyn reservoir and in an area of open mountain called Coetgae-llwyn.
  • II Pont Blaen-y-glyn
    At the W end of Glyn Collwn and the Talybont reservoir, the mountain road crossing Afon Caerfanell just before it rises to climb the pass to Pontsticill.
  • II Ystradgynwyn
    In an isolated position on the mountain road between Talybont and Ponsticill, near the NW corner of Pentwyn Reservoir.
  • II Pont Cwmyfedwen
    In a remote position in the mountains of Taf Fechan Forest, W of the main mountain road between Talybont and Pontsticill.

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