Negotiated invitation to tender, deadline 31/08/2022, for a geotechnical expert for freezing tests, for the Koehlbrand tunnel bypasses to be driven through frozen ground. The Koehlbrand Tunnel as a replacement structure for the Koehlbrand bridge in Hamburg and is intended to cross under the Koehlbrand branch of the Elbe at almost the same point. The twin -tube tunnel will be 1,750 m long and with an excavation diameter of 15.50 m. The bypasses are planned with 3.3 m - 5.9 m inner diameter and 4.7 m and 7.3 m excavation diameter. Click here for tender documents and here where tenders must be submitted. Duration contract from 01/01/2023 to 31/03/2024. Contact HPA Hamburg Port Authority, Hamburg, tel +49 4042847-3919, email zentralereinkauf@hpa.hamburg.de. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=416271-2022. Ref.n. TD-0361-22-VT-EU. 30/22.
