Technical specifications

Scope of work

  • 7,391 m long double-track railway tunnel
  • Excavated area: 120 m² - 150 m²
  • 2 intermediate tunnels serving as points of attack
  • Inclined and parallel tunnels
  • Length: 4,395 m, excavated area: 30 m²
  • Rescue shaft, depth: 21 m

Construction method

  • Drill and blast method and tunnel excavator
  • Waterproofing and inner lining


  • Thuringian slate mountains
  • Clay/silt rock

General data

German Unity Transport Project VDE8
Upgraded and New Railway Lines between Nuremberg and Berlin
(Nuremberg-Ebensfeld-Erfurt-Leipzig/Halle-Berlin railway line) Silberberg Tunnel

DB Netz AG [German rail company]

Wayss & Freytag Ingenieurbau AG
as commercial leader of a joint venture

Construction period
2009 to 2012

Construction costs
approx. € 264 million

Railway tunnel, double-track
7,391 m
Construction Method
TBM tunneling using 2 Mixshields (slurry shields)

Related Projects
Stuttgart Underground Line, U6 Fasanenhof
Stuttgart Underground Line, U6 Fasanenhof

The U6 underground line connects the district of Möhringen with the industrial area “Am Schelmenwasen”. The double-track underground railway tunnel crosses below the industrial area „Fasanenhof”.

Read more
Stafelter Tunnel
Stafelter Tunnel

The approx. 2 km long „Stafelter Berg“ Tunnel, north of Luxembourg city is part of the new motorway section of ‚Route du Nord‘ and consists of two double-lane tubes. The tunnel drive was carried out conventionally and with the drill and blast method.

Read more
Vienna Underground Line – U2/2
Vienna Underground Line – U2/2 "Taborstraße"

During the construction of the Vienna underground line 2 extensive dewatering works with approx. 270 wells and approx. six million pumping hours were required. An electronic monitoring and control system made the measure safe.

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