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Reference list (excerpt)

Rosenalm Snowmaking System, Zell am Ziller

Project design including conceptual design, permit application design, tender and construction design, contracting, support of site supervision and start-up of the Rosenalm snowmaking system in Zell am Ziller.

After a major expansion of the snowmaking system including the Wiesenalm pumping station and Hochried pumping station in 2008, a further expansion of the Rosenalm snowmaking system was carried out in 2010 in the southwestern part of the ski area, with the Hohenbühel pumping station serving as an in-line pumping station, and expansion of the existing Rosenalm pumping station with a supply line from the Wiesenalm pumping station as well as construction of further water lines.

The water supply for these components of the snowmaking system is effected via a supply unit in the Hochried access tunnel of the VAHP Gerlos power plant, with water coming from the headrace tunnel at the Hochried valve chamber. For the subsequent further transport of the withdrawn water and to increase the pressure, the Hochried and Wiesenalm pumping stations were erected in 2008. In 2010 the Hohenbühel pumping station was constructed with upstream water supply from the Wiesenalm pumping station for the supply of water lines, with two of the four pump units being erected. Furthermore, numerous water lines having a total length of 2,700 m were constructed. The expansion 2010 of the snow-making system with additional coverage areas comprises a significant improvement in quality for the ski area of Zeller Bergbahnen Zillertal.