18468

 

II  

Designated  

29/05/1997  

29/05/1997  

Pontamman Bridge  

 

Carmarthenshire  

Betws  

Ammanford  

Pontamman  

263983  

212592  

 

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.  

Transport  

 

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.  

 

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.