7NEWS Sydney takes you on exclusive look inside the crumbling, waterlogged M6 tunnel admin 10 hours ago Latest News Comments Off on 7NEWS Sydney takes you on exclusive look inside the crumbling, waterlogged M6 tunnel 3 Views For the first time, 7NEWS will fly you down the sinkhole right into the heart of the damage zone, which has halted the south Sydney road project. Share Facebook Twitter Stumbleupon LinkedIn Pinterest
