Penarth Dock, South Wales - the heritage and legacy

Volume Six - Pre-Victorian to the Present Day - Select Aspects - The subway under the river Ely story . . .

1898 - surcharge in the River Ely, Penarth - building the subway

Two images taken in August 1898 of the surcharge (a deadweight mass) of clay and spoil from the excavation,. dumped above in the river Ely at the subway excavation construction site in an attempt to mitigate the chance of a blow-out from the pressure of the compressed air inside the shield. [009] [060]