|Countries||Italy, Slovenia, Croatia, Bosnia and Hercegovina, Montenegro, Albania, Greece|
|Major cities||Trieste, Rijeka, Split, Dubrovnik, Podgorica, Shkodër, Tirana, Gjirokastër, Ioannina, Patras, Kalamata|
|Transport in Europe|
Adriatic–Ionian motorway (Albanian: Autostrada Adriatiko-Joniane; Bosnian: Jadransko–jonska autocesta; Croatian: Jadransko–jonska autocesta; Serbian: Jadransko–jonski autoput) or the Blue Corridor is a future motorway that will stretch along the entire eastern shore of the Adriatic and Ionian seas, spanning the western coast of the Balkan peninsula from Italy in the north through Croatia, Montenegro, Albania to Greece int the south.
The road is planned to be built to full motorway standards. It will start in Trieste, Italy, pass through Slovenia, enter Croatia near Rijeka, and continue through Croatia as part of A1 motorway. Road will be connected to Montenegro through Croatia if currently halted construction of Pelješac Bridge is to be continued. Passing Ulcinj, the motorway will enter Albania south of Lake Scutari, and continue south via Shkodër-Tiranë-Rrogozhine-Fier-Gjirokastër. Exiting Albania, the motorway will follow the Greek section of E55 route.
The road is seen as a matter of national importance to Croatia, Montenegro and Albania. Those countries have launched an initiative to list the motorway with Pan-European corridors in order to be able to secure foreign funding.
With starting of Adriatic–Ionian motorway at Trieste, the already existing feeder road RA 13 to the Slovenian border is used. The RA 13 is connected to the Slovenian A3 highway.
The Slovenian section starts with the already existing A3 from the Italian border at Sežana to the interconnection with the A1. The further route isn't planned yet, but will lead to the Croatian border near Jelšane where it will be connected with the Croatian A7 highway. Until construction of that part, the traffic is passed over a national road.
The A7 is completed from the Slovenian border at Rupa, bypassing Rijeka and connecting to the A6. Construction of the part from this junction to a planned interchange with the A1 at Žuta Lokva is currently slowed down and planned as a long-term project. Until completion of this sector, the traffic may either use an indirect route to the A1 via the A6 motorway (to the junction of the A1 and A6 motorways at Bosiljevo 2 interchange) or a more direct route to the A1 via the D8 state road (also known as Adriatic Highway).
|border Slovenia / Rupa - Matulji||16 km||completed|
|Matulji - Orehovica||12 km||completed (cca 135 km from Orehovica taking the existing motorway A6/A1 via Bosiljevo to Žuta Lokva)|
|Orehovica - Sveti Kuzam - Križišće||14 km||completed|
|Križišće - Žuta Lokva||69 km||planned, now D8 to Senj and D23 to Žuta Lokva (i.e. total 83 km from Orehovica taking the A6/A1 via Bosiljevo)|
|Žuta Lokva - Zadar - Split - Nova Sela||360 km||completed|
Bosnia and Herzegovina
It has not yet been defined whether a motorway will pass through southern Bosnia and Herzegovina near Trebinje. A route passing through the Trebinje field would require approval of both the Herzegovina-Neretva Canton and Republika Srpska.
In the Spatial Plan of Montenegro, route of the Adriatic – Ionian motorway is currently defined as following:
- Nudo (border with Bosnia and Herzegovina) - Grahovo - Čevo - (Podgorica) Mareza - (Podgorica) Smokovac - Dinoša - Božaj (Border with Albania)
Thus, Government of Montenegro has considered only the option of motorway crossing southern Bosnia and Hercegovina near Trebinje. A parallel expressway along the coast is also planned, that will connect directly to Croatian road network at Debeli Brijeg, however, this is not considered a part of Adriatic – Ionian route, and will not be built to full motorway standard. This route is intended to relieve Adriatic Highway, and will follow the Montenegrin coastline closely, with Verige bridge included in its route.
Approximate length of motorway through Montenegro is 100 km, of which 10 km between Mareza and Smokovac is shared with Belgrade–Bar motorway.
Building of the Belgrade–Bar motorway is currently a priority for Montenegro, and concrete activities on building Adriatic – Ionian motorway are yet to begin.
Albania has mostly completed its north-south corridor (SH1 and SH4) connecting Montenegro with Greece. Remaining parts of the corridor are planned to be expanded to full motorway standard like building new sections between Muriqan/Sukobin border crossing to SH1 at Bushat south of Shkodër, Thumane-Kashar-Rrogozhina highway part of Milot-Fier upgrade to motorway standard linking with Fier Bypass, and expanding SH4 south of Fier with slight deviation at Pocem near Memaliaj. The motorway in Albania will pass on the current stretch along the western lowland, bypass Tirana through newly planned Thumane-Kashar-Rrogozhine motorway, continue south on the existing SH4, and enter inland at Fier towards Tepelene and Gjirokaster. Less than half of the above segments are single carriageways known as superstradë, while segments SH4 Rrogozhine-Fier and A1 Milot-Thumanë have been widened to dual carriageways known as autostradë.
|Montenegro border / Muriqan - Bushat||new section planned between Muriqan/Sukobin border crossing and SH1 at Melgushe near Bushat, south of Shkodër|
|Melgushe - Balldren - Milot||completed as single carriageway, to be expanded to motorway standard, new Lezhë Bypass section in the form of tunnel at Balldren.|
|Milot - Thumane||completed as a dual carriageway (autostradë)|
|Thumane - Kashar||new section planned to bypass Tirana|
|Kashar - Rrogozhine||new section planned to link Tirana with current SH4 at Rrogozhine|
|Rrogozhine - Fier||completed as a dual carriageway (autostradë), Fier Bypass is completed|
|Fier (Levan) - Fratar||completed as a single carriageway (superstradë)|
|Pocem - Memaliaj||new section to be constructed deviating from current SH4|
|Memaliaj - Tepelene - Gjirokaster||completed as a single carriageway (superstradë), Tepelene and Gjirokaster Bypasses to be completed|
|Gjirokastër - Kakavija / Greece border||completed as a single carriageway (superstradë)|
In Greece the Adriatic-Ionian motorway follows the GR-5 from the Albanian Border at Kakavia up to Ioannina, a section planned to be upgraded to a motorway. From there it follows the A5 motorway (Ionia Odos) up until Antirrio where it crosses the Corinthian Gulf via the Rio-Antirrio bridge to meet the A8 motorway (Olympia Odos) at Rio.
From Rio to Pyrgos, another motorway (which is going to be the extension of the Olympia Odos-A8), is under construction to replace that section of the existing national road GR-9. The other section from Pyrgos to Kalo Nero is delayed due to environmental concerns about the Kaiafas Lake. The Kalo Nero - Tsakona road is a branch of the GR-9 and it leads to the intersection with the A7 motorway, near the city of Kalamata.
|Albania border / Kakavia - Ioannina (A2 junction)||ca. 50 km||National road, upgrade to motorway planned|
|Ioannina (A2 junction) - Filippiada||ca. 50 km||Completed in August 2017|
|Filippiada - Arta south (Arta bypass)||ca. 17 km||Completed in 2003|
|Amfilochia - Arta||ca. 34 km||Completed in August 2017|
|Kouvaras - Amfilochia||ca. 26 km||Completed in December 2016|
|Kouvaras - Etoliko (Agrinio bypass)||ca. 34 km||Completed in May 2009|
|Etoliko - Antirrio||ca. 45 km||Completed in June 2017|
|Antirrio - Rio (Rio-Antirrio bridge)||ca. 5 km||Completed in 2004|
|Rio - Mintilogli (Patras bypass)||ca. 20 km||Completed in 2002|
|Mintilogli - Pyrgos||ca. 75 km||Construction approved in September 2014 but has not begun as of 2017;to be completed by 2021|
|Pyrgos - Kalo Nero||ca. 50 km||Delayed because of environmental concerns|
|Kalo Nero - Tsakona||ca. 30 km||To be upgraded to motorway|
- Adriatic Highway
- Transport in Slovenia
- Transport in Croatia
- Transport in Montenegro
- Transport in Bosnia and Herzegovina
- Transport in Albania
- Transport in Greece