In the late 19th century engineers surveying for the Edinburgh and District Water Trust (EDWT) identified the area around the ancient loch at Talla in the hills above Tweedsmuir in the Scottish Borders as an ideal site for a new reservoir to supply the increasing water demands of the expanding city of Edinburgh, 28 miles to the north. In the mid-1890s the land was secured from the Trustees of the Earl of Wemyss and March Estates for £20,000. Construction was by James Young & Sons.
All materials for construction were lifted from there to the construction site by a ropeway, called a 'Blondin' after the famous tightrope walker Charles Blondin. These included stone and aggregates from quarries in North Queensferry and Craigleith, pipes, valve gear and pumping equipment from central Scotland, as well as the clay,gravel and sand used in the dam embankment. Puddle clay, for the watertight barrier within the dam came from the Carluke area; this material was initially developed by James Brindley for canal lining. In total, over 100,000 tons of material were transported for the building of the reservoir, and at least 30 of the workmen (who were mostly Irish) died during construction and are buried at Tweedsmuir churchyard.
Construction work was virtually complete by late 1904 and Talla Water was diverted into the bed of the reservoir on 20 May 1905. The official opening ceremony on 28 September was carried out by Lady Cranston, wife of the Lord Provost.
The Cache is located in a small forest. Parking at bottom of the banking. To reach the cache, cross the fence where it has been flattened in the past. Please cover back up properly when you're done Thanks.
Congrats to 6669 for the FTF!