Quoich Dam And Intake Gatehouse Towers, Great Glen Hydro Electric Scheme

The Quoich Dam and Intake Gatehouse Towers are part of the Great Glen Hydro Electric Scheme, likely designed around 1955 by James Williamson and Partners (engineers), with W M Halcrow and Partners as principal contractors and James Shearer as architect. The dam itself is a large earth fill structure with a tunnel intake and spillway intake towers located adjacent to the upstream face on the right (north) side, and a smaller turbine hall at the base of the downstream face. The dam has a battered profile on both faces, with a downstream face constructed of coursed rubble and a reinforced concrete upstream face. A concrete parapet runs along the top, flanking a vehicular access roadway, while walkways are bordered by balustraded sections.

The Dispersal Valve Intake Gatehouse is a small, rectangular building situated on the upstream face of the dam, central to its length. It is supported by concrete piers with an access deck that overhangs the dam's upstream face. Constructed of reinforced concrete, it features a central doorway on the east elevation and single, multi-pane metal windows on the other elevations.

The Compensation Set Turbine Hall is a small, single-storey, rectangular building with three bays, set centrally at the base of the downstream face and overhanging the dispersal valve and tail race via shouldered concrete arches. The hall is constructed of coursed random rubble, exhibiting a stepped banded base course and a corniced eaves course. The east elevation features three tall recessed windows with ashlar surrounds, while the north elevation has a large vehicular access doorway, also with a matching surround. A cantilevered walkway runs along the front (east) side, with shaped concrete copes to the parapet and balusters in the centre. The interior is predominantly functional and plain, with small-pane metal windows in painted metal frames and a flat roof.

The Spillway and Tunnel Intake Gatehouses are a pair of adjacent, deep, single-storey, rectangular buildings located on the upstream side of the dam, to the right (north). They are constructed of coursed random rubble, with banded base courses and corniced eaves courses. The fenestration is irregular, featuring ashlar surrounds and some small louvered vents. Large, boarded teak vehicular access doors are present on the principal elevations. The gatehouse on the east side is integrated with a coursed random rubble boundary wall. The gatehouses also contain small-pane metal windows in painted metal frames and have flat roofs.