Open invitation to tender, deadline 15/11/2022, for the retrofitting and renewal of the tunnel maintenance contract on the A 17. The contract includes the tunnels Altfranken ( km 5,275 - km 5,620), Doelzschen (km 7,750 - km 8,820), Coschütz (km 9,020 - km 11,400) and Landschafts (km 43,949 - km 44,260). Click here for tender documents and here where tender must be sent. Duration of contract is from 17/01/2023 to 16/01/2027. Contact Autobahn GmbH des Bundes - NL Ost, Halle (Saale), tel +49 35121298793, email Vergabe.ost@autobahn.de. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=564724-2022. Ref.n. AP0313002310. 44/22.