Loch Treig Dam

Location type

Place

Name and dates

Loch Treig Dam (1934-)

Opened on the Lochaber Narrow Gauge Railway.

Description

This is a 400ft long rock filled dam, damming the River Treig at north end of Loch Treig . It was built to convert the loch into a reservoir, providing a water supply for the hydroelectric scheme opened with the Lochaber Aluminium Works. The water level was raised by 36ft.

The water runs downhill in a tunnel some 15 miles long which drops 72ft along its length before reaching the penstocks of the power station of the smelter at Fort William.

The dam crosses the original route of the West Highland Railway and the water level normally covers part of its former course. Just over a mile of the line was diverted to higher ground - Loch Treig Deviation (London and North Eastern Railway).

Tags

Dam hydroelectricity
09/02/2021

Nearby stations
Fersit Halt
Tulloch
Roy Bridge
Corrour
Spean Bridge
Invergloy Platform
Gairlochy
Rannoch
Invergarry
Banavie Pier
Banavie
Fort William
Fort William [1st]
Corpach
Aberchalder
Bridge 1
Loch Treig Tunnel
Fersit Speeder Shed
Bridge 2
Loch Treig Valve Shafts
Loch Treig Speeder Shed
Fersit Siding
Fersit Cement Shed
Fersit Store
Fersit Fitting Shop
Intake C
Sand Pit
Bridge 3
Intake B
Intake 1
Location names in dark blue are on the same original line.