Qualla: Great Western Railway in West Wales

Great Western Railway in West Wales: Introduction

Sun, 24 May 2026 00:00:00 GMT

Photo credit Rhydgaled, CC BY-SA 3.0. On the night of Tuesday 30 April 1872, every broad-gauge rail in West Wales was scheduled to be ripped up. The Great Western Railway had decided to abandon Isambard Kingdom Brunel's seven-foot gauge - the wide, fast, ambitious track that had defined the line since it opened from Swansea to Neyland twenty years earlier - and bring its Welsh network onto the four-foot-eight-and-a-half-inch standard used by the rest of Britain. The work took twelve days. Up line first, then down. Single-line working at reduced speed in between. Sidings narrowed in advance so passenger trains could be shunted past each other while the crossing loops were rebuilt. By 22 May the down line was complete. By 23 May a skeleton service was running on standard gauge across the whole of West Wales. The most ambitious railway gauge ever built in Britain had been erased from the region in less than two weeks.

Image: Rhydgaled | CC BY-SA 3.0

Great Western Railway in West Wales: Mineral Lines and Coal Carts

Sun, 24 May 2026 00:00:00 GMT

Photo credit Afterbrunel, CC BY-SA 4.0. Before the main line came, West Wales already had a tangle of small mineral railways serving the coal pits and limestone quarries north of Llanelly and around Saundersfoot. The first stretch of the Carmarthenshire Railway - a plateway tramroad connecting coal pits to a quay at Ll...

Image: Afterbrunel | CC BY-SA 4.0

Great Western Railway in West Wales: The Seven-Foot Gauge

Sun, 24 May 2026 00:00:00 GMT

Photo credit Nilfanion, CC BY-SA 4.0. The South Wales Railway was authorised by Parliament in 1845, with a route running from Standish south of Gloucester through Chepstow, Newport, Cardiff, Neath, near Swansea and Carmarthen, ultimately to Fishguard - an ambitious aim that included a branch from Whitland to Pembroke...

Image: Nilfanion | CC BY-SA 4.0

Great Western Railway in West Wales: Opening, Slowly

Sun, 24 May 2026 00:00:00 GMT

Photo credit CapG, CC BY-SA 2.0. Construction of the first section between Chepstow and Swansea opened on 18 June 1850. The crossing of the River Wye at Chepstow was not ready, so for two years the line was isolated from the rest of the network until Brunel's tubular bridge opened on 19 July 1852. The Carmarthen...

Image: CapG | CC BY-SA 2.0

Great Western Railway in West Wales: The Llanelly Lines

Sun, 24 May 2026 00:00:00 GMT

Photo credit Public domain. Parallel to the main line, the Llanelly Railway and Dock Company had been pushing its own network of mineral and passenger railways inland. Authorised in 1828, it built a dock at Llanelli and a two-mile line to coal pits at Dafen, then a more ambitious line to Pontardulais in 183...

Image: Public domain

Great Western Railway in West Wales: Burry Port and Gwendraeth

Sun, 24 May 2026 00:00:00 GMT

Photo credit Jaggery, CC BY-SA 2.0. One of the smaller absorbed lines was the Burry Port and Gwendraeth Valley Railway - born as the Kidwelly and Burry Port Railway in 1865, when the operators of the old Kidwelly and Llanelly Canal decided their canal was obsolete and converted it to a railway. By 1866 they had mer...

Image: Jaggery | CC BY-SA 2.0

Great Western Railway in West Wales: What Remains

Sun, 24 May 2026 00:00:00 GMT

Photo credit Afterbrunel, CC BY-SA 4.0. The main line Brunel built - Swansea to Neyland via Carmarthen, Whitland and Haverfordwest - is still in use today, although the gauge is Stephenson's and the trains are diesel. The Pembroke and Tenby branch, built independently in the 1860s and absorbed into the GWR after years ...

Image: Afterbrunel | CC BY-SA 4.0