Building new flood diversion
13.2.2025 14:00:30 CET | AF Gruppen ASA | Press release
Hydro Energi AS has announced its intention to enter into a contract with AF Gruppen for the construction of the Valldalen dam and flood diversion project. The agreement has an estimated value of NOK 200 million excluding VAT.
Dam Valldalen is located in Ullensvang municipality and dams up the Valldal reservoir, the largest reservoir for the Røldal power plant. Hydro is now upgrading Dam Valldalen to address climate change and increased flooding. AF Gruppen will carry out the construction work.
At Dam Valldalen, the existing concrete spillway will be demolished. A new concrete dam with a bottom outlet gate (new spillway with outlet gate) will be built to replace the demolished concrete spillway. The side channel for floodwater will be expanded by blasting, and a new flood tunnel will be established/blasted in addition to the existing flood shaft/tunnel. To accommodate the expansion of the side channel, the road passing the spillway will need to be relocated further into the terrain.
Work is scheduled to start in April 2025 and be completed in June 2026.
"AF Gruppen is pleased to have been chosen by Hydro to build the new flood diversion. The project fits well with our capacity and expertise in tunnels, concrete, and hydropower. AF looks forward to strong cooperation with Hydro," says Geir Flåta, EVP Civil Engineering at AF Gruppen.
Contacts
Geir Flåta
Tel:47 994 01 510geir.flata@afgruppen.noAF Gruppen
AF Gruppen is a leading contracting and industrial group that was formed by an entrepreneurial spirit and execution capabilities. The group has 6,000 employees and revenue reached NOK 30,5 billion in 2023. AF Gruppen is listed on Oslo Stock Exchange (AFG).
We provide a broad range of services with seven operational business areas: Civil Engineering, Building, Betonmast, Property, Energy and Environment, Sweden and Offshore.
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