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A3 Bucharest–Brașov Motorway

Motorway linking Bucharest to Brașov via Ploiești and the Prahova Valley, part of the planned Bucharest–Borș (Hungarian border) route. The Bucharest–Ploiești section (62 km) opened in July 2012. The Ploiești–Comarnic section (48.6 km) is still in pre-feasibility, while the difficult Comarnic–Brașov mountain section (58 km) has seen its concession and PPP tenders repeatedly cancelled; only the Râșnov–Cristian segment (6.3 km) is in service.

Total length
120 km
Open today
68 km
Sections
3
Cost on record
€628.36M
2 of 3 sections carry a comparable figure

Restated into EUR at 2025 prices.

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Sections

Sections of A3 Bucharest–Brașov Motorway: status, length, dates, cost, funding and contractors
SectionsStatusLengthTimelineCostFundingContractorsContract terms
Bucharest – Ploiești

CNADNR tender of 21 February 2007 (7 bidders); notice to proceed 16 May 2008, works began 26 May 2008; 18-month construction term, 36-month guarantee. Actual opening slipped to July 2012

Opened62 km
  1. Feb 21, 2007Tender awarded
  2. Mar 15, 2007Construction start
  3. Jul 19, 2012Opened
  • Estimated €450M(2012)
  • National budget
  • Impresa Pizzarotti & C.Builder
  • Tirrena ScaviBuilder
  • Spedition UMBBuilder
  • Pa&Co InternaționalBuilder
  • EuroConstruct Trading '98Builder
18 mo execution · 36 mo guarantee
Comarnic – BrașovTendered52 km
  1. 2008Announced
  • Estimated €5.6Bwhole programmeestimatedCNIR multi-criteria route analysis estimate for Ploiești – Râșnov (112.74 km), about 5.6 billion euro (HotNews, 20 April 2026). Spans well beyond this section. No price year or VAT treatment stated; CNIR says the final value will be known when the feasibility study ends. Replaces the October 2018 PPP estimate of 1,360 million euro for Ploiești–Comarnic–Brașov (about 100 km).
  • Public-private partnershipTendered as a concession in 2013 (Vinci–Strabag–Aktor, cancelled 2015) and again as a public-private partnership in 2018 (cancelled 2020). The Comarnic South–North segment (5.2 km) was re-tendered in August 2020.
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Râșnov – Cristian

The only section of the Comarnic–Brașov mountain crossing in service. Recorded as its own lot because the map draws a lot as one status, and 6.3 km of open motorway was being drawn as tendered.

Opened6 km
  1. Oct 2, 2017Tender awarded
  2. Oct 17, 2017Construction start
  3. Dec 2020Opened
  • Estimated lei 150Mworks onlyestimatedPre-award estimated contract value for Lot 2 Predeal – Cristian, km 162+300 – km 168+600, and connecting road, given as almost 150 million lei. Excluding VAT. No price year stated.
  • European UnionAfter the PPP attempts failed, the government turned to EU Operational Programmes for the Râșnov–Cristian portion. Works contract signed October 2017 (24-month term); ERDF financing contract signed 20 May 2019.
  • AlpensideBuilder
  • Specialist ConsultingDesigner
6 mo design · 18 mo execution · 24 mo total · Contract value lei 118.02M

Contractor roles are as recorded in the award. Only builders count toward the delivery rankings.

Funding

  • National budget62 km
    1 section
  • Public-private partnership52 km
    1 section
    • Tendered as a concession in 2013 (Vinci–Strabag–Aktor, cancelled 2015) and again as a public-private partnership in 2018 (cancelled 2020). The Comarnic South–North segment (5.2 km) was re-tendered in August 2020.
  • European Union6 km
    1 section
    • After the PPP attempts failed, the government turned to EU Operational Programmes for the Râșnov–Cristian portion. Works contract signed October 2017 (24-month term); ERDF financing contract signed 20 May 2019.

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

Sources

  1. Wikipedia: A3 motorway (Romania)
  2. Wikipedia (ro): Autostrada A3 (România)
  3. Economica.net: Autostrada Comarnic-Brașov, a fost desemnat în sfârșit un constructor pentru lotul Râșnov-Cristian (November 2016)read Sep 25, 2026
  4. Mediafax: CNAIR a semnat contractul pentru Lotul 5 din Autostrada Comarnic-Brașov: 2,6 mil. euro/kilometru (2 October 2017)read Sep 25, 2026
  5. Ziarul Financiar: Contractul de finanțare pentru un sector al tronsonului Comarnic – Brașov a fost semnat (20 May 2019)read Sep 25, 2026
  6. HotNews: A fost deblocat proiectul autostrăzii Ploiești-Brașov (20 April 2026)read Sep 25, 2026
  7. OpenStreetMap contributors (geometry, ODbL)