Skanska to Constructs Raw Water Tunnel in Norway
Skanska has signed a contract with the Agency for Water and Sewage in Oslo Municipality to construct a raw water tunnel between Hole municipality and Oslo in Norway. The contract is worth about NOK 3.4 billion. The E5 contract consists of constructing a 19-kilometer long tunnel mainly using two TBMs (Tunnel boring machines) from the new water source, Holsfjorden, in Hole municipality to a new underground water treatment plant located at Huseby in the western area of Oslo.
The contract is the second sub-contract in a major development project, whose main goal is to ensure that Oslo's water supply will provide enough quantities of drinking water even in the event of failure in vital parts of the water supply system. Skanska won the first sub-contract, for preparatory work, in august 2020.
Construction will start August 2021 and is scheduled to be completed by 2027.