Romanian railway tunnels
Romania's notable railway tunnels. The Teliu tunnel, bored between 1924 and 1929 on the Brașov–Întorsura Buzăului line and opened in 1931, has been the country's longest railway tunnel for almost a century at 4,369.5 m. The Corridor IV upgrade between Brașov and Sighișoara will overtake it: four tunnel boring machines are driving the twin-bore Ormeniș (about 6.7 km) and Homorod (about 5.2 km) tunnels through the hills around Racoș, replacing the winding Olt valley alignment, and shorter new tunnels are being built at Mureni and Achita on the Cața–Sighișoara subsection. Lengths here are measured from OpenStreetMap geometry of a single bore.
- Total length
- 18 km
- Open today
- 4 km
- Under construction
- 12 km
- Sections
- 6
Includes 13 km whose works another project already measures, either as shared track or as a structure inside one of its sections. Counted in full here, and once in any total that spans projects.
Sections
| Sections | Status | Length | Timeline | Cost | Funding | Contractors | Contract terms |
|---|---|---|---|---|---|---|---|
| Teliu tunnel (Brașov – Întorsura Buzăului line) 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 | Opened | 4 km |
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| Ormeniș tunnel (Apața – Racoș, Brașov–Sighișoara line) 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 | Under construction | 7 km |
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| Homorod tunnel (Racoș – Homorod, Brașov–Sighișoara line) Twin bores on the new Apața–Cața alignment (OpenStreetMap: "CFR line 300 – Variant 7 – Racoș-Homorod"); drilling started in October 2024 | Under construction | 5 km |
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| Mureni tunnel (Cața – Sighișoara) New tunnel on the realigned Cața–Sighișoara subsection of the Brașov–Sighișoara rehabilitation; contractual completion of the end subsections is April 2027 | Under construction | 0.7 km |
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| Achita 1 tunnel (Cața – Sighișoara) New tunnel on the realigned Cața–Sighișoara subsection; contractual completion April 2027 | Under construction | 0.5 km |
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| Achita 2 tunnel (Cața – Sighișoara) New tunnel on the realigned Cața–Sighișoara subsection; contractual completion April 2027 | Under construction | 0.2 km |
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Contractor roles are as recorded in the award. Only builders count toward the delivery rankings.
Funding
- National budget18 km6 sections
- European Union13 km5 sections
- Connecting Europe Facility
A section that lists two sources counts its full length under each: the data records which sources paid, not what share each one carried.
Related projects
- RailwaysBrașov – Sighișoara railway rehabilitation (Corridor IV)Same contractor: Aktor, Alstom, Arcada Company, Euro Construct Trading '98, RailWorks
- HighwaysA10 motorway (Sebeș–Turda)Same contractor: Aktor, Euro Construct Trading '98
- RailwaysFrontieră – Curtici – Simeria railway rehabilitation (Corridor IV)Same contractor: Alstom, Euro Construct Trading '98
- HighwaysA0 Bucharest Ring MotorwaySame contractor: Aktor
- HighwaysA3 Bucharest–Brașov MotorwaySame contractor: Euro Construct Trading '98
- HighwaysFocșani – Brăila ExpresswaySame contractor: Arcada Company