 Railroad tunnel
City-Tunnel Leipzig Los B
Construction design
Construction period: 2004 until 2009
Contract sum: approx. 154 million euro
Hydroshield tunnelling and railway stations
 Road tunnel
Schlossberg B 211, Dillenburg
Construction design
Construction period: 2003 until 2005
Contract sum: approx. 30 million euro
Tunnel driving by blasting
 Motorway tunnel
Eichelberg A 71, Thüringen
Construction design
Construction period: 2003 until 2004
Contract sum: approx. 47 million euro
Roof tunnel driving, jetcrete construction method
 Motorway tunnel
Schwarzer Berg A 70
Construction design
Construction period: 2002 until 2003
Contract sum: approx. 12.2 million euro
Crown driving, jetcrete construction method
 Railroad tunnel
AUDI-Tunnel, Ingolstadt
Construction design
Construction period: 1999 until 2002
Contract value: approx. 150 million euro
Cut and cover construction method under compressed air conditions
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