Orrin Dam With Integrated Fish Pass, Conon Valley Hydro Electric Scheme is a Grade B listed building in the Highland local planning authority area, Scotland. First listed on 11 February 2011. Dam.

Orrin Dam With Integrated Fish Pass, Conon Valley Hydro Electric Scheme

WRENN ID
endless-roof-hyssop
Grade
B
Local Planning Authority
Highland
Country
Scotland
Date first listed
11 February 2011
Type
Dam
Source
Historic Environment Scotland listing

Description

Probably James Williamson and Partners (engineers for North of Scotland Hydro Electric Board technical panel), 1961. Long mass gravity dam with large central buttress incorporating fish pass, with access roadway oversailing fixed spillway on tapered concrete piers. Mass concrete construction to dam with some reinforced concrete to central buttress and control towers. Battered downstream face with large angled buttress to centre flanked by tall square-plan control towers springing from downstream face. Dispersal valves and fish pass entrance to base of buttress with small single storey turbine hall housing compensation set. Additional small control tower to centre of buttress at roadway level.

Detailed Attributes

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