The Vale of Neath Railway

The Vale of Neath Railway was built to connect the industrial centres of Merthyr Tydfil and Aberdare to Neath to carry iron from Merthyr and coal from Aberdare, and then on to the docks at Swansea.

With the expansion of the railway network in South Wales and authorisation of the broad gauge South Wales Railway, which ran from Chepstow via Neath to Swansea, new opportunities arose for further expansion to capitalise on the industrial boom. Up until the 1840s, all the iron produced in Merthyr was transported via the docks at Cardiff.

H S Coke, the Town Clerk of Neath, and a solicitor by profession, was the driving force in promoting the idea of a railway following the River Neath, and connecting Merthyr with Neath; at Neath there would be the alternatives of onward railway transport on the South Wales Railway, or transfer to ships on the river. On 21 May 1845 he put his ideas to the provisional directors of the South Wales Railway. They were supportive, providing that Coke’s railway was also on the broad gauge system.

His intended route was from Neath up the relatively gentle valley as far as Glyn Neath; from there the line was to climb much more steeply and penetrate the mountain at the watershed, then descending the Cynon Valley to Cwmbach (near Aberdare) and turning north-east pass through another mountain by a long tunnel to reach Merthyr. There would be a branch to Aberdare itself.

The Bill for the line went to the 1846 session of Parliament; Brunel as engineer gave evidence to the committees. He was questioned in detail about the gradients on the line, as the steep and lengthy gradients were not considered suitable for mineral lines. Brunel’s persuasive evidence carried the matter through, and the Vale of Neath Railway was authorised by Act of Parliament of 3 August 1846. Share capital was to be £550,000.

The first section to be opened was the main line from Neath to Gelli Tarw Junction, and the branch from there to Aberdare. Finally on 23 September 1851 a ceremonial opening train for directors and their friends ran from Neath to Aberdare. There were stations at Neath, jointly with the South Wales Railway, Aberdulais, Resolven, Glyn Neath, Hirwain, Merthyr Road, and Aberdare. Merthyr Road was the station for reaching Merthyr by a road connection.

The ordinary public service started on 24 September 1851, with three trains each way daily, two on Sundays. The journey time was 70 minutes.

Passenger traffic was immediately buoyant, but at first wharves at Briton Ferry were not ready to receive coal trains; the company had been relying on these. Moreover, there was a problem with silting at Swansea, so it was not until April 1852 that coal traffic was started. Ordinary goods traffic had started in December 1851.

The extension of the railway to Merthyr was delayed by the major engineering task of building a tunnel between Aberdare and Merthyr. In 1845, Isambard Kingdom Brunel had surveyed and prepared parliamentary plans for the Vale of Neath Railway, and these involved a 2,497-yard hole through the hill between Merthyr Tydfil and Aberdare, the second longest of Wales’ tunnels. 650 feet below ground at its deepest point. The tunnel, and subsequently the main line opened on 2 November 1853, with its terminus at the grand Central Merthyr Station, designed by Brunel.

In 1854 to 1857 further branches were opened from Gelli Tarw into the Dare and Amman valleys. These were only used for goods traffic, but included the Dare Viaduct, one of Isambard Kingdom Brunel’s famous timber viaducts.

Almost the whole of the Vale of Neath system had a third rail added to its tracks in 1863. This mixed gauge allowed the Great Western Railway to run standard gauge trains from Hereford through to Swansea over a connection at Middle Duffryn.

The broad gauge rail was removed after the South Wales Railway was converted to standard gauge on 11 May 1872, although by this time the Vale of Neath Railway had been amalgamated with the Great Western Railway, this happening on 1 February 1865.

The line depended for its business on coal mining, and as that industry declined, so the railway came into question. The Merthyr line passenger service was ended on 31 December 1962, and the main line lost its passenger service from 15 June 1964, and Glyn Neath to Hirwaun closed completely on 2 October 1967.

On 29 November 1971 Aberdare (High Level station) to Middle Duffryn was closed completely.