Bertha, the massive tunnel boring machine that drilled a nearly 2-mile tunnel to replace the 60-year-old Alaskan Way Viaduct, is shown in a photo taken with a fisheye wide-angle lens in July 2013 before it moved underground later in the month in Seattle.
Bertha, the massive tunnel boring machine that drilled a nearly 2-mile tunnel to replace the 60-year-old Alaskan Way Viaduct, is shown in a photo taken with a fisheye wide-angle lens in July 2013 before it moved underground later in the month in Seattle. Ted S. Warren The Associated Press
Bertha, the massive tunnel boring machine that drilled a nearly 2-mile tunnel to replace the 60-year-old Alaskan Way Viaduct, is shown in a photo taken with a fisheye wide-angle lens in July 2013 before it moved underground later in the month in Seattle. Ted S. Warren The Associated Press

The end is near for Bertha: After nearly 2 miles in 4 years, tunnel machine about to break through

April 02, 2017 07:17 AM

UPDATED April 07, 2017 09:17 AM

More Videos

  • How electric bikes work: The same workout, cover twice as much ground

    Trevor Hansen of Whatzz-Up Electric Bikes in University Place demonstrates how electric bicycles work.