Request for Information for consultancy services on drainage for the Blix tunnel, part of a new direct train link between Oslo and Ski. The tunnel has been designed with an extensive drainage system running underneath the tracks in each of the two 20.4 km long tunnel bores. The drainage system captures groundwater from the concrete culvert in the tunnel and from the cross-cut between the tunnels. The characteristics of the drained water mean that sediment in the water can deposit in the manholes and pipes included in the drainage system. In order to prevent sedimentary deposits in manholes and pipes, it is necessary to treat the water in the drainage system. To help maintain the tunnel drainage system Bane NOR needs to obtain specialist expertise for such water treatment. Bane NOR want to establish contact with the professional resource as soon as possible in order to identify optimal operating conditions for the facility. Bane NOR will therefore announce the tender competition as soon as it has an overview of the suppliers that can offer the service, estimated to be some time during the autumn of 2024.

Click here for bid/tender documents. Contact Bane NOR SF, attn Tonje Bo, Hamar, +47 22 45 50 00, email tonje.bo@banenor.no. Visit https://ted.europa.eu/en/notice/-/detail/396962-2024. Ref.n. 202408747 27/24.