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Pontamman Bridge

A Grade II Listed Building in Ammanford, Carmarthenshire

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Latitude: 51.7954 / 51°47'43"N

Longitude: -3.9737 / 3°58'25"W

OS Eastings: 263983

OS Northings: 212592

OS Grid: SN639125

Mapcode National: GBR DX.Y0Z2

Mapcode Global: VH4JJ.24LH

Plus Code: 9C3RQ2WG+5G

Entry Name: Pontamman Bridge

Listing Date: 29 May 1997

Last Amended: 29 May 1997

Grade: II

Source: Cadw

Source ID: 18468

Building Class: Transport

Location: Forms part of NE Betws parish boundary. Replaced by recent concrete section road bridge located approx.100m upstream, as part of new A474 road-works. Links with stone arched rail-viaduct to north.

County: Carmarthenshire

Town: Ammanford

Community: Ammanford (Rhydaman)

Community: Betws

Locality: Pontamman

Built-Up Area: Ammanford

Traditional County: Carmarthenshire

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Disused road bridge over river Amman, originally later C18 or early C19, doubled in width with new parapets in late C19. There was a bridge at Betws described as a single arch of 13.7metres span, designed about 1775 by William Edwards, but this may have been located downstream at the present location of Betws bridge, shown in a c1847 sketch by J Harwood.


Single arch stone bridge, of approx. 18m span, with clear longitudinal break between earlier W part and later E part. The W part has masonry in small coursed stone and unusual arch voussoirs of alternate sizes. The E side has squared rubble masonry with black-ash mortar. Arch has stone voussoirs and keystone. Parapets on both sides have large rock-faced coping stones with tooled arises.

Reasons for Listing

Listed as a later C18 or early C19 bridge of impressive single span. Sole surviving masonry bridge over river Amman in region, unusually constructed in two longitudinal phases.

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