Tunnel Spitzenberg

2-lane motorway tunnel, 2 tubes and road B 42


Zimmerstraße 54
10117 Berlin


BeMo Tunnelling GmbH as technical leader
in Joint Ventrue with Stutz GmbH and subterra a.s.
BeMo-share in Joint Venture 33 %

Project location

A 44, AS Waldkappel – AS Ringgau
Tunnel Spitzenberg and raod BA 2
nearby Reichensachsen (Wehretal) at road B452

Start of construction


End of construction


Project total value

37 million €


Layers of mottled sandstone containing fine and rough sandstone,
clayey siltstone und mudstone in changing layers

Technical Data

2-lane motorway tunnel, 2 tubes
• Tunnel length per tube: 599 m
• Excavation by mining per tube: 560 m
- thereof blasting per tube: 480 m
- thereof excavator driving per tube: 80 m
• Cut-an-cover method per tube: 39 m
- thereof execution in watertight construction: 39 m
• Cross-section: 110 m²
• Excavation by boring, blasting, excavator, NATM/SEM
• Support: shotcrete, tunnel arches, reinforcing mesh,
anchors, spiles, pipe umbrellas
• Innerlining: in-situ concret reinforced 40 - 75 cm thick with
waterproofing membrane
• 2 cross-cuts / breakdown bays

Further project related information

• Structural Analysis and Detailed Design by BeMo’s Tunnel Design Department
• From the Northportal up to approx. 100 m upper mottled sandstone (Röt) – application of C3A-free cements – using highly sulphate resistant concrete
• Overburden up to 50 m
• Pipe umbrellas in the first part of the tunnel