Also known locally as Dochfour Weir, the Ness Weir was designed by Thomas Telford and constructed between 1825 and 1830. Originally long, by 1828 it was extended a further with panels of pitching between timber board on the regraded ground. Statera Energy are developing plans to modify the Ness Weir alongside their proposed Loch Kemp pumped storage hydroelectricity project. They propose to raise the existing weir height, and install a new
titling weir and
fish pass are proposed. Statera Energy say this will allow the water level in Loch Ness to be better controlled, and will provide resilience against future climate change. It would allow the proposed pumped storage schemes to operate more efficiently, while proving stable water levels for canal navigation. The first round of public consultation was held in November 2024. Loch Dochfour (and Loch Ness) is considered a
reservoir under the
Reservoirs Act 1975, as the Ness Weir impounds some of water. The dam is high and long and rated as category B. The catchment is with an average annual rainfall of . ==References==