Switzerland

Handeck-Gerstenegg Exploratory Tunnel

Currently the Handeck-Gerstenegg exploratory tunnel is under construction to secure access in winter to the Grimsel 1 and 2 power plants as well as to open up  further “KWO plus” projects for the Oberhasli AG (KWG) at Innertkirchen, one of Switzerland’s leading hydro power companies. The bore, which can be negotiated by lorry, is 3,400 m long, 4.50 m wide and 5.40 m high with a 12 % gradient. The new portal at Handegg is located 1,300 m ASL before running along the western flank of the Aaretal valley. The access heading and the new portal at Gerstenegg (1,700 m ASL) are linked with the access...

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Issue 2013-05 Switzerland

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Issue 2012-07 Austria

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Issue 2011-01 Switzerland

The Lungern Bypass Tunnel – Breakthrough and initial fitting out

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Issue 2020-03 Switzerland

Water Ingress in the Lötschberg Base Tunnel

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Issue 2009-04 Switzerland

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