Federal highway 172a
|Federal highway 172a in Germany|
|Operator:||Federal Republic of Germany|
|Overall length:||4 km|
|of which in planning:||Pirna cross 0.5 km|
|The B 172a near the junction with the A 17|
The federal highway 172a is a German federal highway in the district of Saxon Switzerland-Eastern Ore Mountains .
The road was built in the course of the new construction of the A 17 between 2002 and 2004 as a four-lane motorway feeder for Pirna and measures a total of 5.2 km in length (3.6 km of which four-lane). The B 172a also forms part of the western bypass of Pirnas in connection with the state road S 177 over the Elbe . The transition from the B 172a to the S 177 takes place at the junction with the federal highway 172 .
The B 172a was built in the course of the urgent need in the Federal Transport Infrastructure Plan 2003 and relieves the B 172 running through the Elbe Valley . The construction costs amounted to approx. € 20.6 million.
A 120 m long tunnel was built near the Pirna junction in the area of Dippoldiswalder Strasse / Äußere Kohlbergstrasse for noise protection reasons .
- Geoportal Sachsenatlas: Course of the B 172A in Saxony.
- DEGES planning pages for the Gottleubatal Bridge
- Saxon newspaper Pirna September 12, 2006
- Franz Werfel: Faster to Saxon Switzerland . In: sächsische.de . ( sächsische.de [accessed on November 23, 2018]).