History in Structure

Cwm Du Outfall and overflow sluice on Swansea Canal

A Grade II Listed Building in Pontardawe, Neath Port Talbot

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Coordinates

Latitude: 51.7368 / 51°44'12"N

Longitude: -3.8239 / 3°49'26"W

OS Eastings: 274150

OS Northings: 205805

OS Grid: SN741058

Mapcode National: GBR H2.1T01

Mapcode Global: VH4JS.NLSY

Plus Code: 9C3RP5PG+PC

Entry Name: Cwm Du Outfall and overflow sluice on Swansea Canal

Listing Date: 26 October 1979

Last Amended: 20 December 2002

Grade: II

Source: Cadw

Source ID: 11202

Building Class: Transport

ID on this website: 300011202

Location: Situated on the SE side of the Swansea Canal approximately 50m SE of the Cwm Du bridge carrying the A4067 over the canal.

County: Neath Port Talbot

Community: Ystalyfera

Community: Ystalyfera

Locality: Ynysmeudwy

Built-Up Area: Pontardawe

Traditional County: Glamorgan

Tagged with: Architectural structure

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History

Late C18 outfall and overflow sluice on Swansea Canal. Covered and possibly modified in late C20. The 16-mile Swansea Canal was opened in 1798 to Hen Neuadd, Abercraf, declined after the railway opened in 1852 and closed in 1931

Exterior

Said to consist of two chambers, the first described in the 1979 listing, is a stone lined overflow chamber with dividing wall with 4 stop planks and paddle apparatus built on the canal side of it. This chamber is now covered with metal plates surrmounted by a black painted metal control box. The second on the SE side of dividing wall is visible although covered with a metal grid. This is chamber faced with stone with a bow-shaped end wall with small arched outlet.

Reasons for Listing

Included for its group value with Cwm Du Aqueduct and Ynysmeudwy Uchaf Bridge.

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.

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