Marcie Sillman talks with Lynn Peterson, Washington state transportation secretary, about the estimated $125 million in extra costs for Bertha's tunneling delay.
00000181-fa79-da89-a38d-fb7f2a000000Bertha, the world's biggest tunneling machine, is a five-story-tall monstrosity of drilling tasked with digging out the tunnel for State Route 99 to replace the Alaskan Way Viaduct. It's journey to the center of the earth underneath downtown Seattle began in July 2013, and since then the project has seen its fair share of successes and failures.Follow the progress of the $3 billion megaproject with KUOW.
Bertha Costs: Who Will Pick Up The Tab?
Flickr Photo/WSDOT (CC-BY-NC-ND)
