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Stronger Big Bertha cutter head lowered back into its pit for tunneling
Big Bertha's massive cutter head is back underground after months of repairs were made to get the world's largest tunnel-boring ...
Big Bertha is set to start drilling again in November after extensive repairs, testing
The world's largest tunnel-boring machine is now scheduled to get back to work on November 23, nearly two years after it overheated ...
FHWA creates new National Tunnel Inspection program
The U.S. Department of Transportation's Federal Highway Administration has created a new tunnel inspection program modeled after the decades old ...
Crews begin installation of Big Bertha’s new seal system
While the rest of her massive frame waits below ground, Big Bertha has undergone the most pivotal portion of her ...
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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 Transportation ...
Water main damaged by Big Bertha repair excavation could cost WSDOT $4 million
Four months after crews temporarily stopped excavation on a repair pit for the world's largest tunnel-boring machine due to ground sinkage, ...
Sixth element, reaching 90 feet deep, placed for Midtown Tunnel in Virginia
The sixth of 11 elements being used to create a new two-lane Midtown Tunnel connecting Portsmouth and Norfolk, Virginia, was ...
Lady Bird is the 1,300-ton tunnel-boring machine digging DC’s 13-mile sewer tunnel (PHOTOS, VIDEO)
Each year in Washington, D.C., about 2 billion gallons of raw sewage is dumped into the Potomac River, the Anacostia River ...
Big Bertha, world’s largest tunnel-boring machine, lowered into starting position in Seattle
With the digging of the Washington State Route 99 tunnel in Seattle scheduled to start in July, the Washington State Department of ...
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 ...
NYC tunnel expansion the largest transportation project in U.S.
New York City is undergoing the biggest addition to its transportation system since Penn Station opened in 1910, Time reported. ...
Japanese tunnel collapses, kills 9
Aging bolts are a possible culprit behind the collapse of concrete ceiling slabs that fell from the roof of a ...
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Tesla reveals plan for 'new kind of pickup,' heavy duty truck
VIDEO: Tracked drilling rig tips onto rear end in longest rollover trailering accident ever
VIDEO: Workers leap to safety from burning boom lift 6 stories up
Crane collapses atop Tappan Zee Bridge, shutting down traffic and injuring 5
Ram says Ford Super Duty's claim to towing throne isn't fair
Safety Training & Toolbox Talks
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Articulated dump trucks see rapid size growth as customers move to ...
by Equipment World Staff
Komatsu acquires mining equipment maker Joy Global for $3 billion
by Wayne Grayson
VIDEO: Workers leap to safety from burning boom lift 6 stories ...
by Wayne Grayson
Ram says Ford Super Duty’s claim to towing throne isn’t fair ...
by Tom Quimby
Construction firm’s in-house machine control software the first step toward automated ...
by Wayne Grayson
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