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VIDEO: Bertha sees daylight, finishes 1.7-mile boring work for SR 99 tunnel
Sixty-four years after the Alaskan Way Viaduct was first opened to traffic, Bertha, the world’s largest tunnel boring machine, ...
Bertha stopped after veering off course in home stretch of Seattle’s SR 99 tunnel
Seattle Tunnel Partners (STP) stopped Bertha, the largest tunnel boring machine in the world, on Feb. 28 to make ...
Bertha pushes past halfway point of tunneling for Washington’s SR 99
Bertha, the largest tunnel-boring machine in the world, has made it past the halfway point of its 9,270-foot journey ...
Bertha’s repairs push Seattle’s SR99 tunnel $200 million over budget. And it could get worse
Following two years of costly repairs and downtime, Bertha, the world's largest tunnel boring machine, is $223 million over ...
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As Bertha visits the dentist, a look at how this machine digs and builds the SR99 tunnel at the same time (VIDEO)
Bertha, the world's largest and perhaps most beleaguered tunnel boring machine, has been halted deep below the streets of Seattle ...
PHOTOS > Big Bertha gets her head together: How to repair the world’s largest tunnel machine
With the final repairs having been made earlier this summer and Big Bertha finally picked back together underground, Washington ...
Board rules WSDOT should have given contractor more warning about pipe struck by Big Bertha before stall
In regard to the drilling of the new State Route 99 tunnel below Seattle, the Washington State Department of ...
Before Bertha repairs begin, archaeologists will test soil for artifacts
Before workers in Seattle begin to dig a 12-story pit to make the necessary repairs to get the world's ...
Tunnel-boring machine Big Bertha shut down for “months” due to complexity of needed repairs
Washington State Department of Transportation officials say Big Bertha, the world's largest tunnel-boring machine, is likely out of commission ...
Tunnel-boring machine Big Bertha moves forward 2 feet in test run to see if blockage is fully removed
After nearly two months of downtime caused by a steel pipe stuck in her teeth, Big Bertha, the world's ...
VIDEO: Large crane collapses while hoisting section of viaduct
Volvo unveils the EX2: First fully electric compact excavator prototype is faster, quieter
Excavator operator uncovers one of the best preserved dinosaur fossils ever found (VIDEO)
Ford details F-150 redesign: 2018 refresh features Super Duty styling, customer feedback
VIDEO: Expert excavator operator makes quick work of mat bridge over small creek
Dragged to his death: How to prevent chipper accidents
GO TO SAFETY WATCH
Ford unveils 2018 F-650, F-750 with improved handling, braking
by Jason Cannon
The Pro-Handler is a skid steer with an extendible wheelbase, telescoping ...
by Tom Jackson
Workhorse W-15 electric pickup unveiled: Gas engine backup, half ownership cost ...
by Tom Quimby
Caterpillar acquires Yard Club, a contractor-to-contractor equipment rental service
by Wayne Grayson
John Deere gives 950K a finer touch with ‘exclusive’ PAT blade ...
by Marcia Gruver Doyle
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