Scope of work
B 1 Federal Road Wiener Straße
Henndorf Bypass, two-lane road tunnel
Land Salzburg, Landesbaudirektion
[State of Salzburg, State Building Authority]
Wayss & Freytag Ingenieurbau AG
as technical leader of a joint venture
2006 to 2009
€ 38 million
The longest motorway tunnel in Germany is the centrepiece of the new A 71 federal motorway from Erfurt to Schweinfurt.
Rehabilitation of the head race tunnel with downstream access tunnel and bypass tunnel
The Roppen tunnel between Innsbruck and Landeck in Austria was made safer by the construction of the second tube. The 5,069 meter long tunnel was driven conventionally.