Corridor X Railway Modernisation (Belgrade – Niš)
Upgrade of Serbian mainline 102 between Belgrade and Niš to 200 km/h, backed by an EIB, EBRD and EU financing package reported at up to EUR 2.2 billion for the corridor as a whole. Stalać–Đunis, where a new double-track alignment is to be built, was contracted on 27 November 2025, with works announced to start in March 2027. A prequalification call for one contract covering Paraćin–Stalać, Đunis–Trupale and Trupale–Međurovo opened on 4 August 2026. No construction start or opening date is recorded for any subsection. Published subsection lengths disagree with each other: 83, 62 and 58 km for the three northern subsections against 48.3 km given for Paraćin–Trupale–Međurovo. Lengths here are therefore measured off the mapped existing alignment, cut at the stations that bound each subsection, and the geometry follows the line in use today rather than the new Stalać–Đunis alignment. The EUR 2.2 billion figure covers the whole programme and is not apportioned per subsection; the only per-lot figure recorded is the Stalać–Đunis contract value.
- Total length
- 236 km
- Open today
- 0 km
- Sections
- 6
- Cost on record
- €348.905M
- 1 of 6 sections carry a comparable figure
Restated into EUR at 2025 prices.
Sections
| Sections | Status | Length | Timeline | Cost | Funding | Contractors | Contract terms |
|---|---|---|---|---|---|---|---|
| Belgrade Centre – Velika Plana | Planned | 88 km | – | – |
| – | – |
| Velika Plana – Paraćin Feasibility study, preliminary design and ESIA by a SAFEGE (SUEZ Consulting) consortium with Egis, EPEM and KPMG under the EU PPF9 facility. The study covers the 50 km Velika Plana – Gilje part of the lot. No builder has been chosen. | Planned | 62 km | – | – |
|
| – |
| Paraćin – Stalać Feasibility study, preliminary design and ESIA by a SAFEGE (SUEZ Consulting) consortium with Egis, EPEM and KPMG under the EU PPF9 facility, for Paraćin – Trupale (61 km, excluding Stalać – Đunis). They are not the builder. | Tendered | 21 km | – | – |
|
| – |
| Stalać – Đunis Works announced to start in March 2027 (President Vučić, reported by Infrastruktura železnice Srbije on 21 June 2026). The design-and-build contract excludes Tunnel No. 4 (3,275 m), procured separately; that 2021 tender (TED 384541-2021) was discontinued. Design speed 160 km/h for this subsection per the 2022 contract notice. | Tendered | 19 km |
| – |
|
| 68 mo total · Contract value €348.905M |
| Đunis – Trupale (Niš) Feasibility study, preliminary design and ESIA by a SAFEGE (SUEZ Consulting) consortium with Egis, EPEM and KPMG under the EU PPF9 facility, for Paraćin – Trupale (61 km, excluding Stalać – Đunis). They are not the builder. | Tendered | 40 km | – | – |
|
| – |
| Trupale – Međurovo (Niš) Reconstruction of the existing line, with new passenger platforms and an underpass at Niš Ranžirna station. 6.7 km per the August 2026 contract notice, the third subsection of the 65.2 km tender with Paraćin – Stalać and Đunis – Trupale. The line runs via Niš Ranžirna and bypasses Niš station; the mapped geometry measures 6.83 km. | Tendered | 7 km | – | – |
| – | – |
Contractor roles are as recorded in the award. Only builders count toward the delivery rankings.
Funding
- Loan236 km6 sections
- European Investment Bank and EBRD.
- European Union236 km6 sections
- EU grant support via WBIF.
- National budget236 km6 sections
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
- RailwaysPodłęże – Piekiełko new line and line 104 Chabówka – Nowy Sącz rebuildSame contractor: Gülermak
- HighwaysS19 expressway, Via Carpatia (Kuźnica – Białystok – Lublin – Rzeszów – Barwinek)Same contractor: Gülermak
- HighwaysS2 expressway (Południowa Obwodnica Warszawy: Konotopa – Puławska – Lubelska)Same contractor: Gülermak
- HighwaysS7 expressway (Gdańsk – Elbląg – Warszawa – Radom – Kielce – Kraków – Rabka)Same contractor: Gülermak
- TunnelsŚwina Tunnel (Świnoujście)Same contractor: Gülermak
- RailwaysCluj-Napoca Metro Line M1 (Florești – Cluj-Napoca)Same contractor: Gülermak
Corridors
The designations this project is recorded under. Both schemes are kept: the Pan-European corridors are how these projects were described when they were planned, and TEN-T is what EU money is allocated on today.
- Pan-European Corridor XPan-European
Sources
- EBRD: Corridor X rail Belgrade–Niš project summary (subsection lengths)
- European Investment Bank: Serbia Corridor X railway
- EU za tebe: Koridor X: železnička pruga Beograd–Niš, deonica Paraćin–Trupale–Međurovo
- OpenStreetMap: relation 1335434, Магистрална пруга 102
- OpenStreetMap contributors: route geometry (ODbL)
- TED: Contract award notice 846958-2025, Belgrade – Niš, section Stalać – Đunis, Lot 2 (19 December 2025)read Sep 25, 2026
- TED: Contract notice 323154-2022, design and works for the Belgrade – Niš section Stalać – Đunis (2022)read Sep 25, 2026
- Infrastruktura železnice Srbije: Predsednik Vučić obišao novoizgrađeni Jedinstveni dispečerski centar (21 June 2026)read Sep 25, 2026
- TED: Contract notice 538901-2026, Section 3 Paraćin – Trupale – Međurovo (design and build), Belgrade – Niš Railway Modernisation Project (4 August 2026)read Sep 25, 2026
- Pruga Beograd–Niš, deonica II Velika Plana–Paraćin: Netehnički rezime (PPF9)read Sep 28, 2026
- Pruga Beograd–Niš, deonica III Paraćin–Trupale: Netehnički rezime (PPF9)read Sep 28, 2026
- TV Zona Plus: Raspisan međunarodni tender za izvođača radova na deonici pruge između Beograda i Niša (4 August 2026)read Oct 2, 2026