“Absolutely it's the way to go-every city should have a big tunnel underneath it,” said Hauser. “Alaskan Way Viaduct, which is old and ugly and dirty, and it's gonna fall down if the earth moves and it shakes any more, it's gonna fall.”.Big Bertha doesn't just drill-it installs concrete wall panels as it goes, leaving a finished tunnel behind. “This is a work of art,” said Hauser.Alaskan Way Viaduct, which is old and ugly and dirty, and it's gonna fall down if the earth moves and it shakes any more, it's gonna fall.”. Big Bertha doesn't just drill-it installs concrete wall panels as it goes, leaving a finished tunnel behind.