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Mullardoch Dam & Power Station - Benevean tunnel outfallThe 17,000 foot tunnel from Mullardoch ends in an outfall on the shore of Loch Benevean: Photo: Mullardoch tunnel: Benevean outfallPhoto by: Mike Ross A roller gate to close the end of the tunnel, and a hoist for the gate Photo: Mullardoch tunnel: Benevean outfallPhoto 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. Photo: Mullardoch tunnel: Benevean outfallPhoto 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. Photo: Mullardoch tunnel: Benevean outfallPhoto 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. Photo: Mullardoch tunnel: Benevean outfallPhoto by: Mike Ross Home Page Last updated 8th May 2004 Style © 1998-2001 Subterranea Britannica Words and images © 2004 Michael J. Ross |