Romanian railway tunnels

Driven from the north from 15 July 1924 and from the south from 5 July 1925; the two headings met on 1 October 1926, the tunnel was completed on 30 September 1928 and opened to traffic on 25 June 1931. Built for double track and electrification, it is still single-track and unelectrified; it remains Romania's longest railway tunnel

Twin bores on the new Apața–Cața alignment (OpenStreetMap: "CFR line 300 – Variant 5 – Apața-Racoș"), driven by tunnel boring machines from 2024; will be the longest railway tunnel in Romania

Twin bores on the new Apața–Cața alignment (OpenStreetMap: "CFR line 300 – Variant 7 – Racoș-Homorod"); drilling started in October 2024

New tunnel on the realigned Cața–Sighișoara subsection of the Brașov–Sighișoara rehabilitation; contractual completion of the end subsections is April 2027. NATM excavation of the tunnel began in summer 2023 (Asociația Pro Infrastructura, not CFR).

New tunnel on the realigned Cața–Sighișoara subsection; contractual completion April 2027

New tunnel on the realigned Cața–Sighișoara subsection; contractual completion April 2027

New 603 m tunnel near the left bank of the Mureș on the Bârzava Nouă – Vărădia alignment of subsection 2b, built by mechanised excavation for 160 km/h passenger and 120 km/h freight traffic. Track II through it opened on 17 July 2025. Length from CFR. Dates are those of the 2a and 2b contracts (signed 19 May 2017, works from 27 July 2017).

New double-track tunnel, 1,279 m, on Lot 5 (Cap X Băile Herculane – Cap X PO Nou Poarta, km 404+250 – 436+887) of the Craiova – Drobeta-Turnu Severin – Caransebeș rehabilitation. The design-and-build contract for the whole lot was signed with PORR Construct on 27 August 2025 (RON 2,143.13 million excluding VAT, 12 months design and 48 months works); per the CFR August 2026 status report it is in design, due in October 2030. CFR plans to close the Drobeta-Turnu Severin – Caransebeș line from February 2027 to February 2032 for the works. Length from CFR.

New double-track tunnel, 550 m, on Lot 6 (Cap X Nou Poarta halt – Caransebeș, km 436+887 – 474+046.53) of the Craiova – Drobeta-Turnu Severin – Caransebeș rehabilitation. The design-and-build contract for the whole lot was announced on 11 December 2025 with İçtaş İnşaat and Rotary Construcții Mentenanță (RON 2,114.35 million, VAT basis not stated by CFR, 12 months of design and 60 months of works). CFR plans to close the Drobeta Turnu Severin – Caransebeș line from February 2027 to February 2032 for the works. Length from CFR.

New double-track tunnel, 305 m, on Lot 6 (Cap X Nou Poarta halt – Caransebeș, km 436+887 – 474+046.53) of the Craiova – Drobeta-Turnu Severin – Caransebeș rehabilitation. The design-and-build contract for the whole lot was announced on 11 December 2025 with İçtaş İnşaat and Rotary Construcții Mentenanță (RON 2,114.35 million, VAT basis not stated by CFR, 12 months of design and 60 months of works). CFR plans to close the Drobeta Turnu Severin – Caransebeș line from February 2027 to February 2032 for the works. Length from CFR.