Construction works for Kiesbergtunnel and installation of operational systems

Summary

The tender concerns the replacement construction of the Kiesbergtunnel on state road L 70 and the replacement of the associated overpass structure. The project is complex because the existing tunnel is a two-storey structure, the technical systems are outdated and the concrete structures are damaged. An integrated project delivery model will be used, and a joint alliance contract is planned with the key design and construction partners. The machine-readable notice did not include precise bidder requirements; these must be checked in the tender documents.