A4 motorway (Constanța bypass)
Bypass of Constanța, 22 km from Ovidiu to the Port of Constanța, meeting the A2 at an interchange southwest of the city. It opened in stages between 2011 and 2013 and includes a bridge over the Danube–Black Sea Canal that gives direct access to the port's southern terminal. A planned extension south along the coast past Mangalia to the Bulgarian border would take it to about 60 km, as part of an extension of Pan-European Corridor IV towards Varna.
- Total length
- 21 km
- Open today
- 21 km
- Sections
- 4
Sections
| Sections | Status | Length | Timeline | Cost | Funding | Contractors | Contract terms |
|---|---|---|---|---|---|---|---|
| Ovidiu – DN3 interchange Constanța bypass: tender awarded September 2008 to the Astaldi–FCC Construcción joint venture; EU Cohesion Fund support awarded end-2014. Eligible value of the whole bypass project: 260.66 million lei, of which the Cohesion Fund provides 221.57 million lei and the state budget the rest (CNADNR, July 2012). | Opened | 11 km |
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| DN3 interchange – Constanța West (A2 interchange) Constanța bypass: tender awarded September 2008 to the Astaldi–FCC Construcción joint venture; EU Cohesion Fund support awarded end-2014. Eligible value of the whole bypass project: 260.66 million lei, of which the Cohesion Fund provides 221.57 million lei and the state budget the rest (CNADNR, July 2012). | Opened | 3 km |
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| Constanța West (A2 interchange) – Lazu Constanța bypass: tender awarded September 2008 to the Astaldi–FCC Construcción joint venture; EU Cohesion Fund support awarded end-2014. Eligible value of the whole bypass project: 260.66 million lei, of which the Cohesion Fund provides 221.57 million lei and the state budget the rest (CNADNR, July 2012). | Opened | 5 km |
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| Lazu – Port of Constanța Constanța bypass: tender awarded September 2008 to the Astaldi–FCC Construcción joint venture; EU Cohesion Fund support awarded end-2014. Eligible value of the whole bypass project: 260.66 million lei, of which the Cohesion Fund provides 221.57 million lei and the state budget the rest (CNADNR, July 2012). | Opened | 2 km |
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Contractor roles are as recorded in the award. Only builders count toward the delivery rankings.
Funding
- National budget21 km4 sections
- European Union21 km4 sections
- Cohesion Fund, awarded by the European Commission at the end of 2014
- Loan21 km4 sections
- EBRD loan co-financing the bypass project
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
- HighwaysA1 Bucharest–Nădlac MotorwaySame contractor: Astaldi, FCC Construcción
- BridgesBasarab Overpass, BucharestSame contractor: Astaldi, FCC Construcción
- RailwaysBucharest Metro Line M5 (Drumul Taberei)Same contractor: Astaldi, FCC Construcción
- RailwaysFrontieră – Curtici – Simeria railway rehabilitation (Corridor IV)Same contractor: Astaldi, FCC Construcción
- HighwaysA2 motorway (Świecko – Poznań – Łódź – Warszawa – Siedlce – Biała Podlaska – Kukuryki)Same contractor: Astaldi
- HighwaysS2 expressway (Południowa Obwodnica Warszawy: Konotopa – Puławska – Lubelska)Same contractor: Astaldi
Sources
- Wikipedia: A4 motorway (Romania)
- OpenStreetMap contributors (geometry, ODbL)
- Gândul: Marii panglicari. PSD și-a făcut autostradă de campanie (2014-03-27)read Sep 25, 2026
- CNADNR press release: Varianta de Ocolire a Municipiului Constanța va fi deschisă traficului (19 July 2012)read Sep 25, 2026 · archived copy
- CNAIR: Varianta de ocolire a municipiului Constanța (project page, 2016)read Sep 28, 2026 · archived copy
- CNADNR: Varianta de ocolire a municipiului Constanța (contract details)read Sep 28, 2026 · archived copy