Open invitation to tender, deadline 22/02/2023, for the surveys along the route of the future Neuchâtel - La Chaux-de-Fonds - Le Locle direct line to study the geology and hydrology to be crossed. For further information click here (French) and/or here (German). The contract duration will be from 01/05/2023 to 31/12/2023. Tenders must be sent to Chemins de fer federaux suisses CFF, I-ESP-EIB-RWT, attn Maxime Bordet, Renens, email maxime.bordet@sbb.ch. Contact Chemins de fer federaux suisses CFF, Infrastructure, Projets, I-AEP-PJM-RWT-T2, attn Davide Calderara, Renens, email davide.calderara@sbb.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=728927-2022. Ref.n. 1160950. 52/22.