Blackwall Tunnel from immigrants; the tunnel lining was manufactured in Glasgow, while the manual labour came from provincial England, particularly Yorkshire. The tunnel was officially opened by the Prince of Wales on 22 May 1897. The total cost of the tunnel was £1.4 M and 800 men were employed in its construction, during which seven deaths were recorded. The southern entrance gateway to the tunnel, also known as Southern Tunnel House, was designed by LCC architect Thomas Blashill and was built just before the tunnel was completed. It comprises two floors with an attic. Today the western bore is only used for
Alderton Tunnel Alderton Tunnel The Alderton Tunnel sits on the South Wales Main Line in England, on a stretch of line between Swindon and Bristol Parkway. The tunnel, which is 506 yards long, was opened on 1 January 1903 along with the line between and , that being the first section of the South Wales & Bristol Direct Line of the Great Western Railway. Building of the tunnel commenced at least two years before 1903, as the rise in railway workers boarding in Alderton village can be seen in the 1901 Census. As part of the modernisation of the Great Western main