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Merthyr Tramroad Tunnel is a stone-built tunnel constructed as part of the early tramroad system serving the iron and coal industries of Merthyr Tydfil in South Wales. The tunnel was built in the early nineteenth century to facilitate the transport of goods from the industrial works to the canal system, forming part of the infrastructure associated with the development of steam-powered transport in Wales. The tunnel survives as a substantial engineering work of dressed stone construction, representative of the practical solutions employed by early industrial engineers to overcome topographical obstacles. This site, scheduled as a monument of national importance, illustrates the technological and logistical advancement of Welsh industrial transport during the period of the nation's prominence in iron and coal production.
Merthyr Tramroad Tunnel (Trevithick's Tunnel) is a scheduled monument protected by Cadw under reference GM573. View the official record →
Merthyr Tramroad Tunnel is a stone-built tunnel constructed as part of the early tramroad system serving the iron and coal industries of Merthyr Tydfil in South Wales. It is designated a Scheduled Ancient Monument by Cadw under reference GM573.
Merthyr Tramroad Tunnel (Trevithick's Tunnel) dates from the post medieval/modern period, and is classified as a tramroad. It is one of over 32,000 scheduled monuments protected across the UK.
Merthyr Tramroad Tunnel (Trevithick's Tunnel) is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM573.
Several scheduled monuments lie within 10 km, including Cefn Merthyr Round Cairns (5.5 km), Brynbychan Round Cairn (6.1 km), Coed Cae Round Cairns (6.5 km).
Aubrey generates in-depth historical research for any address in the UK — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Merthyr Tramroad Tunnel (Trevithick's Tunnel)