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Carlos Kirschner's files
Workers in a Tunnel
Semmering Base Tunnel
Austria: Semmering Base Tunnel first tube break through.
Austria: Semmering Base Tunnel first tube break through.
Austria: Semmering Base Tunnel first tube break through.
Brenner Base Tunnel geology
Austria Ofenauer Tunnel - Tauernautobahn
PORR contract awarded for Brenner Base Tunnel Lot H53
ÖBB Drill cores
Deutschebahn New Railway Tunnel between Hamburg CS - Altona
cover tunnel photo by: Matt Brown from London, England / CC BY
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