History

Railway viaduct, built 1866 by Henry Conybeare and Alexander Sutherland for Savin and Ward at a cost of £25,000. Sutherland was a friend of Robert Crawshay of the nearby Cyfarthfa Iron Works. The viaduct carried the former Brecon and Merthyr Railway over the Afon Taf Fawr and was built on a curve to satisfy conditions laid down by the Crawshay Estate. It was planned to be constructed entirely of limestone like the nearby Pontsarn Viaduct but a trade union strike by stonemasons in February 1866 caused the company to buy 800,000 bricks from Hirwaun and Welshpool and use bricklayers to complete the fifteen arches. Most of the masons were sacked shortly after returning to work. The first arch from the Vaynor side was keyed on 12 May 1866 and the last on 27 August 1866. The viaduct was built for double-line working but a single track only was installed, on the N side.

Exterior

Railway viaduct; abutments, tall slender piers and parapets of coursed irregular sized rock-faced limestone blocks and fifteen ring-built semi-circular brick arches each of six courses. The piers have a projecting impost band and there are 2 projecting string courses below the parapets. The viaduct is built on a gentle arc some 235m long and has a maximum height of approximately 36m. An inscription on the S side reads 'Built by Savin and Ward 1866'.

Reasons for Listing

Included at II* as one of the most historically interesting and architecturally impressive railway viaducts in Wales.

External Links

• Cadwr Listing
• Wikidata Q17742842

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.

Recommended Books

• 
  Cumbria: Cumberland, Westmorland and Furness (Pevsner Architectural Guides: Buildings of England)
• 
  Berkshire (Pevsner Architectural Guides: Buildings of England)
• 
  Wiltshire (Pevsner Architectural Guides: Buildings of England)
• 
  Churches: An Architectural Guide (Pevsner Architectural Guides: Introductions)
• 
  The Shredded Chef: 120 Recipes for Building Muscle, Getting Lean, and Staying Healthy
• 
  Historic Environment Law: Planning, Listed Buildings, Monuments, Conservation Areas and Objects by Harwood, Richard (2012) Paperback