Open invitation to tender, deadline 03/09/2025, for management support services during the construction of the Serantes Connection , Phase 1, South Bypass of Bilbao. The new line will connect Bilbao with its harbour. Click here for bid documents and here where tenders must be sent. Value of contract EUR3.13 million contract, excluding VAT. Duration of contract 42 months. Contact ETS - Euskal Trenbide Sarea, Bilbao, tel+34 946572600 , email kontratazioa@ets-rfv.eus. Visit https://ted.europa.eu/en/notice/-/detail/486802-2025. Ref.n. P20026851. 31/25.