Bertha

February 12, 2016, 1pm PST
A drill named Pamela, tasked with digging the tunnel for the Sound Transit light rail extension from Husky Stadium to Northgate, was stuck in the dirt under Seattle for several months.
The Seattle Times
January 16, 2016, 11am PST
The adventure of Bertha the tunnel-boring machine, already two years behind schedule, has a new twist.
The Seattle Times
December 27, 2015, 11am PST
Baby steps are an improvement for the tunnel-boring machine known as Bertha. The drill moved a total of 1.5 feet this week, but the symbolic distance probably felt like a mile.
The Seattle Times
April 1, 2015, 5am PDT
With the Bertha tunneling-boring machine stuck in the mud under Seattle for more than a year, officials turned to a politician known for his ability to stop transportation in its tracks.
Planetizen April 1st Edition
February 20, 2015, 2pm PST
Finally, a breakthrough we've all been waiting for: Bertha is on the move again in Seattle and will soon be ready for repairs. The tunnel Bertha was built to drill will have to wait, however.
The Seattle Times
December 23, 2014, 12pm PST
"Seattle is in the midst of a full-spectrum transportation fustercluck," writes David Roberts for Grist.
Grist
February 14, 2014, 11am PST
Seattle’s massive highway tunneling project delays while solutions are sought for the mechanical error that brought the project’s massive drilling machine, Bertha, to a halt. Some are starting to examine life after Bertha.
Seattle Transit Blog
January 21, 2014, 8am PST
Though Seattle's giant tunneling machine remains stuck 60 feet under South Main Street, muck is starting to be flung above the surface. An email from Washington's Transportation Secretary reveals concerns over the conduct of the machine's operators.
The Seattle Times
December 20, 2013, 10am PST
Is it a giant rock? What about a sunken ship? Beneath Seattle's waterfront, a mysterious object has halted Bertha, the world's largest tunnel-boring machine. Stumped engineers are unclear on how long a highway tunneling project will be suspended.
The New York Times