the tunnel is set to open for rail transport in twenty twenty six the costs have been estimated ten billion euros the tunnels construction is politically controversial it s an important infrastructure project say proponents but critics say it s a black hole sucking up billions. looka has overseen many explosions but they re never routine the preparations last several hours the fuse lines are connected last. seen the point i m going to cure. since we re in a closed space there s a big pressure wave the whole imagine shakes as does the ground and he threw a feat it will convey the it feels like a major earthquake and that that all.