Kirchbacher Strasse

State road B73 in Austria
Basic data
Start of the street:	Graz
End of street:	Gralla
Overall length:	44.4 km
State :	Styria
Course of the road Graz Graz Liebenau Styrian Eastern Railway Grazer Ring Strasse Graz area Gössendorf → Hausmannstätten (North) Himmelreich tunnel 1045 m → Hausmannstätten (south) Ferbersbach Leibnitz district → Heiligenkreuz am Waasen Stepping District of Southeast Styria Precious perennials Zerlach Kirchbach in Styria Leibnitz district Schwarzau in the Schwarzau valley → Wolfsberg in the Schwarzautal Breitenfeld am Tannenriegel Ragnitz Mur Gralla

The Unterkirchbacherstraße (B 73) is a country road in Austria . It has a length of 44.4 km and leads from Graz through the Eastern Styrian hill country to Kirchbach in Styria and then back to the Mur near Leibnitz .

history

The road from Graz via Hausmannstätten, Hühnerberg and Prosdorf to Kirchbach was upgraded to 1st class district road by a resolution of the Styrian state parliament on April 14, 1877. Since April 1, 1938, the district roads of the 1st order in Styria have been run as state roads.

The Unterkirchbacherstraße heard since 1 January 1973 to the network of federal roads in Austria .

expansion

The Hausmannstätten bypass was planned from 1979/80 , but construction work on the 2,320 m long project could not begin until the beginning of 2010. The heart of the lot is the 1045 m long Himmelreich tunnel. The bypass was opened on July 2, 2012, and the total cost was 65 million euros.

swell

1. ^ Law on public roads with the exception of federal roads (State Road Administration Act). LGBl. No. 20/1938, Section 59 Paragraph 2 (b).
2. ^ Announcement by the Federal Minister for Buildings and Technology of May 13, 1974 in accordance with Section 33 (4) of the Federal Roads Act 1971 with regard to the State of Styria, Federal Law Gazette No. 310/1974.

B73	Like the other former federal highways, Kirchbacher Strasse was part of the federal administration. Since April 1, 2002, it has been under state administration and continues to have the B in the number, but not the name Bundesstraße.