This article is about 'the South tunnel'. You may be looking for 'the castle tunnel'.

Tidmouth Tunnel is a tunnel between Tidmouth and Knapford.


The railway reached Tidmouth in 1905 by means of a road-side tramway from Knapford; however a gale in the autumn of 1908 destroyed it. In 1910 a treasury grant was obtained and a single tunnel was cut through the ridge south of Tidmouth and laying a railway directly from Tidmouth to Knapford, forming the Tidmouth, Knapford and Elsbridge Light Railway. In 1916 the NWR completed a double track tunnel and Tidmouth's usefulness as a harbour started to be explored.

It only appeared in Troublesome Engines, when an elephant blocked the tunnel and Henry had to take workmen to clear it.