Essentially, the construction project includes the diversion of several watercourses from the rear Stubaital and middle Ötztal with a gallery length of 25.5 km, the construction of the Kühtai reservoir in the rear Längental with a usable volume of approx. 31 million m³ and a 113 m high natural stone fill dam with a central earth core seal, and the construction of an underground pumped storage power plant “Kraftwerk Kühtai 2” between the new Kühtai reservoir and the existing Finstertal reservoir. The additional annual production amounts to 216 million kWh.
Location: Kühtai, Tyrol; Austria
Client: TIWAG (Tyrolean Hydropower Company)
Commissioned by: JV SWK Kühtai (Swietelsky – Jäger – Bodner)
Performance period: since 2021
ogether with a partner company we are responsible for the execution of the entire construction and heading survey for the construction of the tunnels, caverns and the fill dam, the geotechnical measurements and the supply of the instrumentation for the underground structures.