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Iceland

Iceland, Fljotsdalur - is/13

Hydro

Restricted tendering for construction of 32 km-long tunnel, deadline 20th January, 2000. Fax Landsvirkjun +354 151 59006 for details. January 2000.   Planned installed capacity of power station will be 210 MW. A 43 sq km reservoir will be formed at Eyjabakkar connected to a 31.2 km-long headrace tunnel, of which 28 km will be TBM bored at 5.0 – 5.5 m-diameter. This will feed three Pelton vertically-mounted turbines in an underground powerhouse via a 450 m steel-cased penstock shaft. The drill/blast sections of the headrace tunnel will be 27 sq m cross-section. A 1 km tailrace tunnel will discharge the water into the River Jokulsa. A 700 m-long powerhouse access tunnel will house a switchgear cavern and control station. The first 155 m of this tunnel was developed by drill/blast some ten years ago. TBM excavation will produce 1.5 m cu m of spoil and blasting will yield another 400,000 cu m. Some 50,000 cu m of concrete and injection aggregates will be required. Fljotsdalur is needed to power a proposed aluminium smelter at Reydarfjordur scheduled to go onstream at end-2003, so underground construction will have to restart by mid-2000. Estimated project cost $315 million. For a complete history and background to this scheme visit www.lv.is February 2000. Project abandonment reported at www.lv.is July 2000.



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