Open invitation to tender, deadline 05/08/2025, for the Technical‑Economic‑Environmental Study, including the materials required for obtaining the Environmental Conditions Decision, for the project ‘Construction of the S‑17 expressway, Drewnica – Zakręt section (14 km) in Warsaw. The objective is to select the most advantageous route option, taking into account tunnel solutions. Click here for bid documents and where tenders must be sent. Duration of contract 48 months. Contact GDDKiA (Generalna Dyrekcja Dróg Krajowych i Autostrad), Varsavia, tel +48 222092361, email azeynalov@gddkia.gov.pl. Visit https://ted.europa.eu/en/notice/-/detail/421068-2025 and https://ted.europa.eu/en/notice/-/detail/408727-2025. Ref.n OWA.D-3.2411.8.2025. 27/25.