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Canal Tunnel between Sebastopol and Cwmbran, including attached revetment walls

A Grade II Listed Building in Pontnewydd, Torfaen

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Coordinates

Latitude: 51.6705 / 51°40'13"N

Longitude: -3.0317 / 3°1'54"W

OS Eastings: 328749

OS Northings: 197361

OS Grid: ST287973

Mapcode National: GBR J4.5VH8

Mapcode Global: VH79Z.D8MR

Entry Name: Canal Tunnel between Sebastopol and Cwmbran, including attached revetment walls

Listing Date: 30 August 2000

Last Amended: 31 January 2003

Grade: II

Source: Cadw

Source ID: 23957

Building Class: Industrial

Location: On Monmouthshire & Brecon Canal, about 450m north of Five Locks Road.

County: Torfaen

Community: Pontnewydd

Community: Pontnewydd

Locality: Five Locks

Traditional County: Monmouthshire

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Pontnewydd

History

Late C18 canal tunnel on the Monmouthshire Canal. Built by Thomas Dadford Junior 1792-9, the canal ran between Newport and Pontnewynydd, with a branch between Crindau and Crumlin. There were 3 tunnels on the main line of the canal, 2 at Newport, and this to the north of Cwmbran.

Exterior

Canal tunnel, brown stone. The south portal has semi-circular arch with keystone, and is in coursed squared stone; walls extend southwards, at right angles from the portal on both sides. The north portal is similar to the south portal (but the keystone is less prominent), with attached wall at right angles. The tunnel is around 70m long, and is lined in stone.

Reasons for Listing

Late C18 structure on canal which was a prime factor in the industrial development of the Gwent Valleys.

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