History

On the Chester & Holyhead Railway, and built in 1845. Its chief engineer was Robert Stephenson, and contractor for the Conwy section was John Evans. Conwy tunnel was the site where the ceremonial first sod of the railway was cut on St David's Day, 1845. This section of the line opened in 1846.

Exterior

The portal is of snecked rock-faced stone across a deep cutting, with flanking battered buttresses. Above the round arch is a corbel table and parapet. The parapet has a saddleback coping of tooled stone. It is splayed to the S bank where a rectangular terminal pier has a rock-faced cap (partly overgrown at the time of survey). A similar pier is on the N side (but obscured by vegetation at the time of inspection).

Reasons for Listing

Listed for its special interest as a tunnel portal of definite mid C19 architectural character, one of a number of items contributing to the overall historical integrity of this section of the former Chester & Holyhead Railway.

External Links

• Cadwr Listing
• Wikidata Q29507994

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

• 
  Listed Buildings: The Law and Practice of History Buildings, Ancient Monuments and Conservation Areas
• 
  Listed Buildings, Conservation Areas and Monuments
• 
  Bedfordshire, Huntingdonshire, and Peterborough (Pevsner Architectural Guides) (Pevsner Architectural Guides: Buildings of England)
• 
  The Listed Buildings and Other Principal Structures at the Royal Gunpowder Mills Waltham Abbey
• 
  Harrow on the Hill: A photographic portrayal of listed buildings and structures (Historic Buildings Picture Guides)
• 
  The Shredded Chef: 120 Recipes for Building Muscle, Getting Lean, and Staying Healthy