Builds flood tunnel and establishes seawater energy supply for the new Museum of the Viking Age

The project is underway to establish piling pits for rough hole drilling of rock. In the flood tunnel, PE (polyethylene) water pipes will be laid, making sure that the stormwater and water/glycol will be carried between the museum site and the bay Langviksbukta. Down in the bay, a process plant will be established that regulates the temperature between the seawater from the Oslo Fjord and the water/glycol that is sent up to the museum.
"Together with Statsbygg, we have identified the possibility of combining a flood tunnel with the establishment of seawater energy. This is an innovative and sustainable solution that also helps ensure the safety of the ships. We look forward to continuing the good collaboration with Statsbygg", says Eirik Wraal, EVP of AF Gruppen.
Construction started in February 2023, with completion in the second quarter of 2024.
Contacts
Eirik WraalEVP Energy & Environment and Building Norway and Corporate Social Responsibility
Tel:+47 905 73 975Eirik.Wraal@afgruppen.noAmund TøftumCEO
Tel:+47 920 26 712Amund.Toftum@afgruppen.noImages

About AF Gruppen ASA
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 30,6 billion in 2024. 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.
Subscribe to releases from AF Gruppen ASA
Subscribe to all the latest releases from AF Gruppen ASA by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from AF Gruppen ASA
New decommissioning project in the North Sea22.12.2025 11:04:05 CET | Press release
AF Offshore Decom, a company within AF Gruppen, has signed a contract with Ithaca Energy for the engineering, receipt, dismantling, and recycling of a floating production platform from the UK sector of the North Sea.
Nominated for contract at Onarheim substation17.12.2025 09:40:23 CET | Press release
AF Elkraft, a company within AF Gruppen, has been nominated by Statnett for high-voltage works at the new Onarheim substation in Husnes. The agreement is a turnkey contract with a value of just over NOK 100 million excluding VAT.
Contract signed with Nedre Romerike vann- og avløpsselskap IKS11.12.2025 10:57:29 CET | Press release
AF Gruppen has been awarded the contract to expand the existing treatment plant for Nedre Romerike vann- og avløpsselskap IKS.
Appointed for new contract at the new Aker Hospital5.12.2025 10:00:42 CET | Press release
Helse Sør-Øst RHF has appointed AF Decom, a company within AF Gruppen, for a contract covering site establishment and coordination as well as interior fit-out works at the new Aker Hospital. The agreement is valued at approximately NOK 155 million excluding VAT and will be executed as a general contract.
Delivering technical HVAC-R Installation to Princess Elisabeth Island in Belgium28.11.2025 13:40:51 CET | Press release
Aeron, a company within AF Gruppen, has entered into an agreement with the HSI Joint Venture, consisting of HSM Offshore Energy, Iemants and Iv – Offshore and Energy, with a value of approximately NOK 150 million excluding VAT.
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom
