Talla is fine example of Victorian water engineering, built between 1897 and 1905 [Fig 5.11] and designed to have no public access. The structures are faced with Dumfreisshire and Craigleith stone, in the Scots Baronial style. The downstream face of the dam is maintained as a wellï¾kept lawn and the valley sides have been afforested 'to preserve the purity of the water draining into the reservoir' (Institution of Civil Engineers 1907).