 It would gather water from an area of , and would have had the largest surface area of the reservoirs, at , as opposed to just for Kentmere Head.Three separate dams would have been built, and this reservoir was favoured by Bateman, because he thought it would cost the least, and would provide a similar yield to Kentmere Head.However, his estimates were wildly inaccurate, as was his prediction of the available rainfall.