Herrschaftsbuck Tunnel
Client
Regierungspräsidium Freiburg, Ref. 47.3,
Dienstsitz Bad Säckingen, Rathausplatz 5
79713 Bad Säckingen
Germany
Contractor
BeMo Tunnelling GmbH
in Joint Venture with Subterra a.s.
BeMo-share in JV 50 %
Project location
A 98, AD Hochrhein-AD Karsau
79618 Rheinfelden
Germany
Start of construction
2017
End of construction
2020
Project total value
31.5 million €
Geology
Layers of keuper (Gipskeuper), clayey Keuper (Lettenkeuper), lacustine limestone (Muschelkalk), Karst formation
High ground water level approx. 404.60 mAD
Technical Data
• double-lane motorwaytunnel, 2 tubes (North- and Southtube)
• Northtube
Tunnel Length: 485.00 m
Mined Excavation: 447.20 m
Cross-Section: 101.00 m²
• Southtube
Tunnel Length: 475.00 m
Mined excavation: 428.65 m
Cross-Section: 163.00 m²
• Final Lining:
In-situ concrete (reinforced - Northtube: 40-60 cm/ Southtube 60-80 cm), waterproofing membrane (“KDB”) water pressure tight,
PP fibre reinforced concrete in the arch
• 1 Cross Cut Length: approx. 19.00 m
Cross Section approx. 18.00 m²
• Execution: drill and blast, using excavators, NATM
• Support: shotcrete
Further project related information
Road Construction works in the tunnel including road surface, drainage, installation of empty conduits for cables, construction of emergency sidewalks.