Ghella, in a joint venture with Norway’s AF Gruppen, won an important call for bids launched by the City of Oslo for the construction of a new water distribution network worth approximately 870 million euros. The Italian company holds 40% of the joint venture that was awarded the infrastructure project named E6 Rentvannstunnel , providing for the construction of a new water supply network between Huseby, Oset and Stubberud, in the region around the Capital.
Approximately 11 km of tunnel will be drilled by Tunnel Boring Machine (TBM) and 7 km by traditional method (drill and blast). In addition, the JV shall build clean water basins and a pump station.
The works/contract is a part of the new water supply project that will ensure 100% redundancy for the current potable water supply infrastructure for the city of Oslo.
The work is planned to start in April 2022 and will be completed in November 2027.
The contract awarded to Ghella is the third lot of a broader project named NyVannforsyning Oslo (New Water Supply for Oslo).
The project aims to diversify the clean water supply system of the city of Oslo, by collecting water from Lake Holsfjorden, 19 Km from the city centre. The water will be distributed via a tunnel from Holsfjorden to a new water treatment plant located inside a mountain in Huseby, west of Oslo. The investment is forecast to assure the supply of water to the city of Oslo over the next 100 years.
