Domains
Geology;Hydropower
Client
Kraftwerke Oberhasli AG (KWO)
Time frame
Services
- Geology
Phases
- Construction
The Project
First constructed in 1932, the Grimsel Dam will be replaced with a new double-curvature arch-gravity dam, built directly in front of the old dam. The old dam will be preserved and subsequently flooded, while a tunnel adjacent to its wall will ensure the water level is balanced hydraulically. The new structure will have the same crest height as the existing arch-gravity dam, allowing for a height increase in the future, thereby enlarging Lake Grimsel.
Lake Grimsel will continue to function throughout the construction period, without major restrictions. The construction site is located on the road over Grimsel Pass, approx. 1,800 m to 1,950 m above sea level (Grimsel Hospice).
ARX supports the client in what concerns Geology related aspects.
