View of site and early work on Avon Dam Trenchford reservoir with Fernworthy inlet in the foreground Existing gauge weir in West Okement at Vellake View of the existing West Okement intake and reaches of the valley from the Black Tor area Trenchford reservoir Beginning work on the foundations of Burrator dam Early construction of the filtration plant at Shipley Early construction of the Avon dam wall The effects of the 1975 drought at Kennick reservoir Aerial view of the Avon Dam from downstream. Laying the railway track at Sheepstor Dam Bridge over the Meldon river before the building of the Meldon reservoir. Sheepstor Bridge Aerial view of the Avon Dam from upstream. The railway track at Sheepstor dam