Open invitation to tender, deadline 14/09/2023, for topographic surveys for the Riederwald tunnel (1095 m, 1025 m) on the BAB 66 (Frankfurt/Main - Hanau). For tender documents click here, where tenders must be sent. The contract is composed of 2 lots. Duration of the contract will be 60 months. Contact Autobahn GmbH des Bundes - NL West, Montabaur, email vergabe.west@autobahn.de. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=493578-2023. Ref.n. 01-23-5015_01-23-5025. 33/23.