A photograph taken on the 23rd August 1897 at the Ferry Road side of the river Ely showing the open cut trench and the first sections of subway entering the ground. The gradient adopted on this side of the river was 1:9. [009] [060]

Another view taken on the 23rd August 1897 at the Ferry Road side of the River Ely Subway showing the assembled cast iron segmental tunnel as it disappears into the muds and gravels deep below the river.

The photograph is taken from a series of six held within the archives of the National Museum of Wales and is reproduced with permission. [629] [Museum item number : 70.102I/2] [20180323]