The Kainzmühl barrier is a concrete gravity dam in the Oberpfälzer Wald. As part of the Pfreimd power plant complex, it is the lower reservoir of the Tanzmühle pumped storage plant.
The tendering process for the upcoming renovation was carried out from mid-September to December 2023. In January 2024, the construction contract "Renovation measures to ensure the structural safety of the Kainzmühl dam by installing a sealing system with a plastic sealing sheet and a sealing curtain in the rock as well as other services in metrological structural monitoring" was signed. The dam was cleared in March 2024 to prepare for the start of construction. The construction work is scheduled for completion in October 2024.
Client: Engie Deutschland Erneuerbare GmbH
Processing period: 2019 – 2025
Main data:
Year of construction: 1923 - 1924 (remodelled 1954 - 1955)
Height of the concrete wall: 20 m
Crown length: 120 m
Crown width: 5.6 m
Max. Discharge capacity: 40.5 m³ (in pressure discharge)
Services:
Service phases 1 to 7 HOAI in property and structural planning
Nature conservation expertise and mapping
Site management
Construction supervision
Ecological construction supervision