The
Great Western Railway was completing its main line between London and Bristol, and in 1844 the company's engineer
Isambard Kingdom Brunel was surveying a line that would connect the GWR
Gloucester branch to
Cardiff,
Swansea and
Fishguard. A prospectus was issued in the name of the
South Wales Railway. The significance of Fishguard was that the GWR intended, with the collaboration of new railways in Ireland, to capture the contract for the official mail traffic between London and
Dublin. Hitherto this had been carried from
Holyhead to Kingstown (now known as
Dún Laoghaire), but the road transit to Holyhead was long and difficult. A ferry from Fishguard to "a new port south of
Wexford" and efficient rail connections on both sides of the crossing could be competitive. The South Wales Railway was incorporated on 4 August 1845. It was always in effect a subsidiary of the Great Western Railway, and a perpetual lease by the GWR of the SWR in December 1846 was agreed to start from the completion to Fishguard. There were difficulties about the route at the Gloucester end of the South Wales Railway, and Brunel began to have misgivings about the suitability of Fishguard, which at the time had no sheltered harbour facilities. In 1845 there was widespread loss of the potato crop on which a majority of Irish people depended for a living, resulting in mass starvation and commercial depression, which deepened the following year. The catastrophe is known as the
Great Famine. With unfortunate timing, the
Waterford, Wexford, Wicklow and Dublin Railway secured its authorising act of Parliament, the
Waterford, Wexford, Wicklow and Dublin Railway Act 1846 (
9 & 10 Vict. c. ccviii) on 16 July 1846; capital £2 million. Observing the deepening crisis in Ireland, the WWW&DR company cut back its plans and declared that it could not build to Wexford. For the time being a rail and ferry route to Dublin via Fishguard was impossible. Brunel had all along entertained thoughts of developing the transatlantic shipping trade from south-west Wales, and he declared this in 1844. Whereas the Irish ferry service was reliant on the shortest possible sea crossing, transatlantic shipping had different priorities. Linking with his doubts about the general suitability of Fishguard, he agreed with the board of the South Wales Railway that it would not now build to Fishguard. A branch of the planned Fishguard line was to run to
Haverfordwest and the decision was taken to extend that line to a harbour on
Milford Haven, where there was a deep anchorage. The railway's terminus was given that name, but later it was changed to
Neyland, and another harbour and station nearby was named Milford Haven. The lease of the SWR by the GWR had been interrupted by the decision not to build to Fishguard, but in March 1852 a new lease was agreed, and abandonment of the
Clarbeston Road to Fishguard section was sanctioned by Parliament in that year. The South Wales Railway was publicly opened as far as Haverfordwest on 2 January 1854, and from there to Neyland on 15 April 1856. A twice weekly steamer service to Waterford, and other services were started gradually. The terminus, "Milford Haven", was renamed Neyland in 1859 and then changed again to New Milford by December 1859. ==Narberth Road and Maenclochog Railway==