The Greek Motorway 8 (Greek: Αυτοκινητόδρομος 8), is a motorway in Greece. Part of the Olympia Odos network, the motorway connects Athens with Patras in southwestern Greece, spanning a total of 215 km (134 mi).
|Part of E94 and E65|
|Maintained by Olympia Odos S.A.|
|Length||215 km (134 mi)|
|History||1962–1973: Constructed as National Road 8A|
2008: Eleusis–Corinth section reassigned as A8 motorway
Since 2008: Corinth–Rio section upgraded to dual carriageway standard and completed in 2017
|East end||Eleusis East|
to Athens airport
|West end||Rio interchange:|
to Ioannina and Patras
|Regions||Attica, Peloponnese, West Greece|
|Major cities||Eleusis, Corinth, Aigio|
The motorway replaces Greek National Road 8A, which has been upgraded to modern motorway standards. The completion date was scheduled for 2014. Since April 2017, the entire motorway from Eleusis to Patras is fully operational.
Olympia Odos S.A. will maintain and operate the road for a total of 30 years. Operations will include two Traffic Control Centers built to operate 24/7 in order to handle emergency calls, as well as monitor traffic situations and contact emergency services when needed. Also, as part of the construction deal, 24/7 patrols, worksite protection, timely detection and response to incidents, and special services in the winter, are included.
During the construction phase, routine maintenance and work for all parts of the infrastructure of the existing National roads had been conducted.
As of 2017[update], there are 4 toll stations on the A8: at Eleusis, the Isthmus, Zevgolateio and Rio. The section between Eleusis and Corinth has 3 lanes per direction. There are service areas in Nea Peramos, Megara, Isthmus, Kiato, Akrata and Aigio.
On September 2, 2016, the first fully completed Olympia Odos segment, the section between Ancient Corinth and Kiato (20 km with 2 lanes in each direction + emergency lane and two interchanges in Zevgolatio and Kiato), was officially opened to traffic, with the presence of the Greek Prime Minister, Alexis Tsipras. Although there were still some minor scale works (mostly on interchanges), traffic flow was not impacted. On the same day, the Derveni tunnels were given to public use. On December 19, 2016 another 9 km opened in Olympia Odos from Kiato to Xylokastro, without the Xylokastro interchange which was opened in February together with Derveni Interchange.
Any remaining segments of the motorway under construction were completed and opened to traffic in April 2017 when the official inauguration of the road took place as well, at the same month that segments of the A5 motorway and the A1 motorway's Tempe tunnels were also inaugurated and opened to traffic.
|Regional unit||Exit||Name||Destinations||Notes/Also as|
|West Attica||1||Eleusis east||GR-8 to Athens||Eastern terminus of the motorway|
|2||Eleusis west||GR-3 E962|
|3||Eleusis interchange||A6 E94 to Athens International Airport|
|4||Megara east, Nea Peramos|
|5||Megara south||GR-60 to Megara Airport|
|9||Isthmia, Epidaurus||GR-8 GR-10 to Epidaurus|
|11||Corinth interchange||A7 E65 to Tripoli, Kalamata|
|26||University of Patras|
|27||Rio interchange||A5 E55 E65 to Ioannina||Western terminus of the motorway|