Technical specifications

Scope of work

  • Length: 2.2 km, excavated cross-section: 80 m² - 100 m²
  • 2 parking bays, area: 125 m²
  • 6 cross-passages to an existing exploration tunnel
  • Ventilation shaft, diameter: 4m, depth: 38 m
  • Service buildings and emergency exit shafts

Construction method

  • Drill and blast method in combination with tunnel excavator,
    length: 1.4 km;
  • Cut and cover method: 732 m

Geology

  • Ground moraine
  • Flysch sedimentary rock

General data

Project
B 1 Federal Road Wiener Straße
Henndorf Bypass, two-lane road tunnel

Client
Land Salzburg, Landesbaudirektion
[State of Salzburg, State Building Authority]

Contractor
Wayss & Freytag Ingenieurbau AG
as technical leader of a joint venture

Construction period
2006 to 2009

Construction costs
€ 38 million

Utilisation
Infrastructure
Type
Road Tunnel, double-track
Length
2.2 km
Construction Method
Drill and blast method in combination with tunnel excavator

Related Projects
Darmsheim Tunnel
Darmsheim Tunnel
Germany

The long-expected bypass in the Swabian town of Darmsheim will ensure an improved quality of life, since HGV traffic with approx. 23,000 vehicles will not pass through the town in future.

Read more
Tridel Tunnel
Tridel Tunnel
Switzerland

Due to an advantageous layout of tunnel portal and tunnel excavator is was possible to do without shunting bays and laborious shunting during the construction of the single-track railway tunnel.

Read more
Reconstruction of suburban train station under Dortmund Main Station
Reconstruction of suburban train station under Dortmund Main Station
Germany

Accessibility and a steady increase in ridership place new demands on the infrastructure of the city railway station Dortmund. Conversion and extension of the light rail system provide the sustainability safely.

Read more

Cookies Policy

Our website uses cookies to improve your experience. Certain cookies can contain personal information. We deactivate Cookies, unless you allow Cooky usage.
Additional information

Allow Cookies
Do not allow cookies
Cookies Settings