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Big Bertha Seattle
VIDEO: Big Bertha breaks through: tunnel-boring machine enters repair pit, ready for disassembly
Though she remains very far from being done, Big Bertha completed a very important leg in her journey beneath Seattle ...
PHOTOS: Fixing Bertha: How workers dug a 12-story pit to raise world’s largest tunnel boring machine from the dead
No. 8 Story in 2015 « No. 9 No. 7 » The Big Bertha saga recently received a major update: crews ...
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 ...
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 ...
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Presented By: John Deere
Myths and facts about diesel particulate filters.
There are many opinions and misconceptions out there about using diesel particulate filters (DPF or exhaust filter) for controlling engine…
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 largest ...
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 for ...
Another mystery overheats, halts tunnel-boring machine Big Bertha once more
The Washington State Department of Transportation officials in charge of the world's largest tunnel-boring machine have another mystery on their ...
Big Bertha, world’s largest tunnel-boring machine, arrives in Seattle
The "Big" in Bertha's name isn't there for the catchiness. It's there because it's apt. With a 57-foot diameter and a ...
Cummins hit with $60M lawsuit by FCA over defective emissions system in Ram pickups
VIDEO: Massive earthmover tire explosion shows why you should cage 'em before you inflate 'em
U.S. highways are shifting to alternative interchange designs
GMC unveils 2017 Sierra HD All Terrain X, its most powerful off-roader yet thanks to new 6.6L Duramax
VIDEO: Crews demo century-old Virginia St. Bridge, construct and move new one into place (Time-lapse)
Unsafe surroundings: Unrecognized hazards could cause trouble for you – or for someone else
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Hoping to impress ‘low-spec’ skeptics, LiuGong steps up its game with ...
by Tom Jackson
How Volvo CE is engineering a quarry run by electric loaders ...
by Marcia Gruver Doyle
Caterpillar CEO Doug Oberhelman to retire next year; Umpleby tapped as ...
by Wayne Grayson
Caterpillar intros M315F, M317F wheeled excavators with tool carrier, compact radius ...
by Wayne Grayson
Three views on the past, present and rapidly evolving future of ...
by Tom Jackson