Weir Ovella construction
- Client
- Gemeinschaftsraftwerk Inn GmbH
- Country
- Germany
- Period
- 2014-2022
Services provided
The Challenge
The construction of a new dam for the Inn Joint Power Plant on the Swiss-Austrian border faced significant spatial and geological challenges due to its location in the narrow, deeply incised Inn valley.
The Solution
The project included a weir, headrace intake, fish ladder, and a doping power plant. The doping plant ensures a regulated minimum water discharge into the Inn, addressing the high surge loads caused by upstream hydropower operations.
The Impact
By buffering hydropeaking and enabling seasonally adjusted residual water releases, the project enhances ecological conditions in the Inn River while supporting the performance of downstream hydropower plants.