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Renovation of a 150 years old railway tunnel.
Removal of old and instable rails which were slowing down traffic and were considered unsafe.
Building of an in-situ slabtrack to improve time saving and overall safety


Deepening of the Kirchberg Tunnel.
Milling of 6000 Tons ballast and 2500 Tons of Rock.

Time frame :
Start: Sat. 31/11/2015 at 16:00
Deadline: Mon. 2/12/2015 18:00
Finished Monday 2/12/2015 02:00
Result: Time saving of 16 hours