NPRNTeitlMath O SafleArchifauDelweddauNPRN91420TeitlWelsh Highland RailwayMath O SafleRHEILFFORDDArchifau55Delweddau49NPRN34888TeitlVale of Neath Railway; Aberdulais ViaductMath O SaflePONTArchifau1Delweddau0NPRN34885TeitlVale of Neath RailwayMath O SafleRHEILFFORDDArchifau1Delweddau0NPRN43013TeitlTintern Wireworks Railway Viaduct, TinternMath O SafleTRAPHONT REILFFORDDArchifau3Delweddau1NPRN43084TeitlConway Tubular Bridge, ConwyMath O SaflePONT REILFFORDDArchifau66Delweddau33NPRN412122TeitlYnysmaerdy Incline Bridge over Pant Howel DduMath O SaflePONT REILFFORDDArchifau1Delweddau0NPRN305101TeitlCarmarthen and Cardigan Railway;Teifi Valley Railway;Gwili RailwayMath O SafleRHEILFFORDDArchifau5Delweddau3NPRN34614TeitlBritannia Bridge;Britannia Tubular Bridge;Pont Britannia, A55 Bridge, Menai StraitMath O SaflePONT REILFFORDDArchifau151Delweddau42NPRN34526TeitlTennant Canal: Clydach Aqueduct;Neath Abbey AqueductMath O SafleTRAPHONT DDŴRArchifau7Delweddau1
