Subscribe to our Newsletter
This iframe contains the logic required to handle AJAX powered Gravity Forms.
Alaskan Way Viaduct
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 budget, ...
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 once ...
Bertha is nearly ready to start tunneling again (VIDEO)
The massive tunnel-boring machine that's been sidelined in Seattle for two years could be back to boring by New Year's. The ...
Bertha delayed again; won’t restart drilling until late December
The Seattle Tunnel Partners have once again delayed the restart of drilling for the State Route 99 tunnel, with Bertha not expected ...
From our partners
Presented By: Mack Trucks
Mack® trucks power Hilco Transport with increased performance and uptime
Jeff Loudermilk can tell you anything you want to know about Hilco Transport, but he laughs when you ask about…
Crews prepare soil for Bertha to begin tunneling again
One of the last steps to getting Big Bertha back to boring beneath Seattle is underway. The Washington State Department of ...
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 State ...
Damage to Big Bertha worse than previously thought
Now that crews are well into the process of dismantling her front-end for necessary repairs, it's clear that damage to ...
Did Seattle’s SR 99 tunnel really require Big Bertha? Indeco argues breakers are the answer
Tunnel boring machines such as Big Bertha, the 7,000-ton machine sidelined after a massive fail under the streets of Seattle, ...
Big Bertha wakes from one-year nap, begins to chew her way into repair pit
For the first time in more than a year, Big Bertha actually bored. According to a report from the Seattle Times, the world's largest ...
VIDEO: Watch time-lapse of Highway 99 construction
The Washington State Department of Transportation was kind enough to release the following time-lapse video of construction on Highway 99. ...
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 largest ...
Unstoppable Force, Immovable Object: Seattle’s Big Bertha halted by mystery object
Has Big Bertha met her match? She has, at least for the time being. The world's largest tunnel-boring machine was recently ...
Page 1 of 2
Caterpillar to begin manufacturing mini excavators as market growth ends deal with Wacker Neuson
VIDEO: Watch as a massive Komatsu PC8000 mining shovel is assembled in this time-lapse
John Deere unveils 2 large-frame skid steers, 2 CTLs in G Series power boost
VIDEO: Entire Erques Bridge construction chronicled in beautiful time-lapse
REVIEW: Cat S60's design, speed, built-in FLIR thermal camera combine for the ultimate construction phone
Unsafe surroundings: Unrecognized hazards could cause trouble for you – or for someone else
GO TO SAFETY WATCH
Caterpillar to begin manufacturing mini excavators as market growth ends deal ...
by Wayne Grayson
REVIEW: Cat S60’s design, speed, built-in FLIR thermal camera combine for ...
by Wayne Grayson
With new emissions regs, can heavy truck makers go all-in on ...
by Jason Cannon
Test Drive: Off-roading in Nissan’s sonar-equipped 2017 Titan Pro-4X Crew Cab ...
by Tom Quimby
compact track loaders
John Deere unveils 2 large-frame skid steers, 2 CTLs in G ...
by Wayne Grayson