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State Route 99
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 ...
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 ...
Big Bertha’s delays have pushed back the opening of the tunnel it’s digging by 20 months…so far
Seattle's new State Route 99 tunnel is officially 20 months behind schedule, and it's all Bertha's fault. The Associated Press reports ...
Drilling delays a problem for tunnel-boring machine Big Bertha even as she slumbers below ground
Crews in Seattle are now expected to finish digging a 12-story pit to reach stalled tunnel-boring machine Big Bertha one ...
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Jeff Loudermilk can tell you anything you want to know about Hilco Transport, but he laughs when you ask about…
Repairs to Big Bertha will include 86 tons of steel reinforcement to tunnel-boring machine’s bearing, cutter drive
The largest tunnel-boring machine in the world needs a bit of reinforcement against the "wet and abrasive soils" deep below ...
A steel pipe is what brought Big Bertha, the world’s largest tunnel-boring machine, to a halt
The mystery is solved—in part at least. After Big Bertha, the world's largest tunnel-boring machine, was brought to an abrupt halt ...
VIDEO: Watch as a massive Komatsu PC8000 mining shovel is assembled in this time-lapse
Nikola says its 2,000-hp electric hauler is 100% emissions-free
VIDEO: Entire Erques Bridge construction chronicled in beautiful time-lapse
Cat to end track drill production, intends to sell room and pillar underground mining machine business
With VP Henricks's retirement, Caterpillar cuts more jobs in consolidation of tech, R&D efforts
Unsafe surroundings: Unrecognized hazards could cause trouble for you – or for someone else
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Cat to end track drill production, intends to sell room and ...
by Wayne Grayson
Work truck, heavy hauler emissions regs tighten with release of EPA/USDOT ...
by Jason Cannon
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Construction’s Digital Divide: It’s culture, not age, that makes contractors tech-hesitant ...
by Tom Jackson
Test Drive: We punish Ford’s 2017 Super Duty with a rocky ...
by Tom Quimby