Short description
Oslo Municipality (The Client) shall establish a reserve water supply within 2028. Holsfjorden has been selected as the water source for the new water supply in Oslo. Water will be routed in a tunnel from Holsfjorden to a new underground water treatment plant which will be located at Huseby in the western area of Oslo. From here, potable water will be routed to the existing potable water supply network in Oslo.
The project is scheduled for construction start in 2020 and completion in 2028. The detailed development plan was approved by Oslo Municipality on 13.11.2019. The project funding was approved at the same time based on the quality assurance (KS2) of the feasibility study/pre-project.