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Allt na Lairige Tunnel [Surge Shaft]

Glen Fyne, W of Ardlui, Argyllshire.

Tunnel, Hydro electric scheme.

The tunnel from the dam to Allt na Lairige power station was 1.75 miles (2.82 km) long. The tunnel's outfall point [NN 23568 16294] is located a short distance W of the surge pond & shaft (given coordinates) where the water is transported to the power station below via a surface pipeline.

Alternative Names: None recorded.

Notes: "Allt Na Lairige power station (Commissioned 1957) Installled Capacity 6MW, is a relatively small station using water from Alt Na Lairige Dam to run a single turbine in response to peak demand. The station formed part of the second phase of development in the Sloy catchment from the later 1950s onwards... The dam is part of the Glen Shira Hydro-Electric Scheme and is situated in a valley in the hills some 8 miles northeast of the head of Loch Fyne. The structure was designed by J. A. Banks of Babtie, Shaw & Morton, Glasgow, and built by Marples, Ridgway & Partners. It was completed in 1957. The dam has a central dispersal valve located at the base of the single central buttress with a small control tower above. Water leaves the dam via a tunnel to reach the power station." [A. Wilson]

Power station located at [NN 2310 1635].