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Tag: Washington state construction
Roadbuilding
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, shouldn’t always be considered the most efficient option for creating big dig projects, says a new publication produced by Italian hammer manufacturer Indeco and released at the Intermat construction equipment trade show this week. […]
April 23, 2015
Roadbuilding
Barrier rolls from overpass during construction, kills young couple, infant son in Washington
A construction project to install a sidewalk along an overpass in Washington turned tragic Monday morning when a piece of the span fell atop a pickup traveling beneath. According to a report from the Seattle Times, Josh and Vanessa Ellis and their 8-month-old son Hudson were inside the truck and killed in the accident, which […]
April 15, 2015
Roadbuilding
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, Seattle officials have now identified a major repair needed on a water main damaged by the sinking. Back in December, excavation stopped on the repair pit through which Big Bertha’s massive cutterhead was recently lifted as officials suspected groundwater pumping […]
April 14, 2015
Roadbuilding
PHOTOS: Big Bertha’s 2,000-ton front end lifted to the surface. How the world’s largest tunneler was raised
[imagebrowser id=225] After a year of slumber and almost a month after chewing her way into a 12-story repair pit, Big Bertha, the world’s largest tunnel-boring machine, is finally under repair in Seattle. Crews worked for the better part of March to disassemble the machine’s front end before lifting the machine’s cutterhead and body shield panels—a […]
April 1, 2015
Roadbuilding
Crane sends pipe careening into Seattle bus on Highway 520 bridge followed by a crashing traffic sign
Eight passengers on a bus traveling across the Highway 520 in Seattle were hospitalized Tuesday night after a construction accident resulted in a traffic sign toppling atop the bus. According to a report from the Seattle Times, Washington State Department of Transportation and Washington State Patrol officials said a crane lifting pipe as part of the Highway […]
March 19, 2015
Construction Equipment
Excavation stopped on Big Bertha repair pit due to major ground sinkage in area
The latest in a long string of delays to affect tunnel-boring machine Big Bertha has far greater implications than any of the others, this time threatening the structural integrity of the Alaskan Way viaduct and nearby buildings in the Seattle neighborhood of Pioneer Square. According to a report from The Seattle Times, Washington State Department of Transportation officials […]
December 15, 2014
Business
One contractor gives another work: Seattle officials suspect construction crew responsible for dumping concrete in sewer pipe
Even though it’s something that happens fairly regularly—three or four times a year—footing the bill to repair sewer pipes used as a place to dump left over concrete never gets any less frustrating for Seattle city officials. Today the city will have to close down part of Fairview Avenue North so construction crews can begin […]
November 13, 2014
Construction Equipment
Camera gives a live view of construction on Big Bertha’s 12-story repair access pit
Just because Big Bertha is down for nearly a year, that doesn’t mean work around the world’s largest tunnel boring machine has come to a halt. And now thanks to a camera set up by the Washington State Department of Transportation, anyone can watch as that work progresses. After completing one-tenth of the 1.7-mile State Route 99 […]
May 13, 2014
Construction Equipment
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 running once again, they must step aside to allow archaeologists to search the soil for artifacts. Sixty vertical holes were drilled into the soil 48 feet above dormant Big Bertha, the tunnel-boring […]
March 25, 2014
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