This imagemap is the Corestore navigation tool

Mike - personal pages Diana - personal pages Iain - personal pages Sandy - personal pages The Corestore - computers ancient and modern Back to Corestore home page My adventures with gas turbines Some of my favourite British scrapyards Subterranea Scotia - Scotland underground Photo albums - family and friends The works of the North of Scotland Hydro-Electric Board This imagemap is the Corestore navigation tool

The above is an image map, use it to navigate the site. Best viewed at 1280 x 1024 using any browser.

Site Records

Subterranea Scotia

Mullardoch Dam & Power Station - Benevean tunnel outfall

Mullardoch Power Station sign



The 17,000 foot tunnel from Mullardoch ends in an outfall on the shore of Loch Benevean:

Mullardoch tunnel: Benevean outfall

Photo: Mullardoch tunnel: Benevean outfall
Photo by: Mike Ross



A roller gate to close the end of the tunnel, and a hoist for the gate

Mullardoch tunnel: Benevean outfall

Photo: Mullardoch tunnel: Benevean outfall
Photo by: Mike Ross



Looking over the railing... Water can be seen welling up: the actual mouth of the tunnel is underwater, but not by much. I've been told that when Loch Benevean is at its lowest level, the mouth of the tunnel is visible and the tunnel flows freely, with airspace.

Mullardoch tunnel: Benevean outfall

Photo: Mullardoch tunnel: Benevean outfall
Photo by: Mike Ross



There's a major construction adit on the left side of the track which leads to the outfall, around 50 yards before the outfall itself. It's still used for maintenance access when the tunnel is dewatered.

Mullardoch tunnel: Benevean outfall

Photo: Mullardoch tunnel: Benevean outfall
Photo by: Mike Ross



Inside... a very short concrete-lined section, the rest of the adit is unlined, as is virtually all of the main Mullardoch-Benevean tunnel.

Mullardoch tunnel: Benevean outfall

Photo: Mullardoch tunnel: Benevean outfall
Photo by: Mike Ross




Home Page
Last updated 8th May 2004
Style © 1998-2001 Subterranea Britannica

Words and images © 2004 Michael J. Ross

Valid HTML 4.01!