The Pyhrn Autobahn (A9) (Pyhrn motorway) is an

Autobahn The (; German plural ) is the federal controlled-access highway system in Germany. The official German term is (abbreviated ''BAB''), which translates as 'federal motorway'. The literal meaning of the word is 'Federal Auto(mobile) Track'. ...

(

motorway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms i ...

), in

Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...

. It runs through the

Alps The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Sw ...

by two two-lane

tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

s, the Bosrucktunnel and the Gleinalmtunnel. The longest tunnel on the motorway is the Plabutschtunnel under

Graz Graz (; sl, Gradec) is the capital city of the Austrian state of Styria and second-largest city in Austria after Vienna. As of 1 January 2021, it had a population of 331,562 (294,236 of whom had principal-residence status). In 2018, the popul ...

and its outskirts. The last section of the highway was completed in 2004. While in 2016 some sections still remain

single carriageway A single carriageway (British English) or Undivided highway (American English) is a road with one, two or more lanes arranged within a one carriageway with no central reservation to separate opposing flows of traffic. A single-track road has a s ...

, including some tunnels, work is progressing to make the Phyrn Autobahn fully

dual carriageway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...

. The second carriageway of the Bosruckstunnel was opened on October 19, 2015. The Tunnelkette Klaus (8 km) and Gleinalmtunnel (8.3 km — the last sections with a single carriageway — were planned to receive a second carriageway in late 2018 and in 2019, respectively. The motorway south of the A2 interchange is a part of the Pan-European corridor Xa.

External links

Exit list of A9
Autobahns in Austria {{Austria-transport-stub