Prior information notice for the extension of the Berlin U3 metro line, excavation and structural work on the new section and Mexikoplatz station. The contract involves the construction of an approximately 800 m long tunnel to house two tracks, including an emergency exit in the Erdmann-Graeser-Weg area, a barrier-free underground station with 1.5 times higher coverage and associated service rooms, as well as an adjacent depot approximately 440 m long with an emergency exit at the south end. Contact FEM4, Berlin, tel +49 0151 2766 7330, email Einkauf.FEM4@bvg.de. Visit https://ted.europa.eu/en/notice/-/detail/647599-2025. Ref. n. BEK-2025-0037. 41/25.