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Tag: Bertha TBM
Roadbuilding
Virginia’s largest ever infrastructure project involves tunnel boring machine
Construction for Virginia's Hampton Roads Bridge-Tunnel Expansion is underway. Watch VDOT explain the tunnel boring process here on Equipment World.
November 5, 2020
Roadbuilding
WSDOT wins $57.2M suit over Bertha’s breakdowns during Alaskan Way Viaduct project
The Washington State Department of Transportation has won a $57.2 million jury award in its lawsuit over delays in the Alaskan Way Viaduct project due to tunnel boring machine Big Bertha’s breakdown in 2013. The project was delayed for about three years as the contractor team of Seattle Tunnel Partners worked to get Bertha, then […]
December 31, 2019
Roadbuilding
Seattle’s SR 99 tunnel, dug by TBM Bertha, nears completion
The State Route 99 tunnel in Seattle, Washington is officially getting its stripes which is a sign that the project is almost completed. Get more details here.
September 7, 2018
Roadbuilding
Last road panel installed in Seattle SR-99 tunnel dug by Bertha
The Washington State Department of Transportation reports that the last of 1,152 road panels have been installed on the new State Route 99 tunnel, which will replace the Alaskan Way Viaduct. The panels form the lower deck of the double-deck highway, which will allow drivers to travel under downtown Seattle as a bypass or stay […]
April 2, 2018
Roadbuilding
As Bertha visits the dentist, a look at how this machine digs and builds the SR99 tunnel at the same time
Bertha, the world’s largest and perhaps most beleaguered tunnel boring machine, has been halted deep below the streets of Seattle once again. But this time the stoppage is for routine maintenance following significant progress. Plus, the stoppage gives us an opportunity to look at an often overshadowed portion of this project: construction of the State Route […]
July 18, 2016
Roadbuilding
Bertha will soon begin digging below the viaduct its path will replace
The world’s largest tunneling machine will soon begin its dig beneath the Alaskan Way Viaduct in Seattle, its first activity since mid-March. In January tunnel-boring machine Bertha broke through its repair wall following two years of down time only to be brought to a halt once again later that month at the order of Washington Gov. […]
April 27, 2016
Roadbuilding
Bertha is nearly ready to start tunneling again
The massive tunnel-boring machine that’s been sidelined in Seattle for two years could be back to boring by New Year’s. The Washington State Department of Transportation announced that the Seattle Tunnel Partners had begun the final preparations before drilling gets started again with soil and sand being poured into the 120-foot-deep access pit on Sunday. Bertha […]
December 17, 2015
Construction Equipment
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 tunnel-boring machine, briefly went back to work beneath Seattle. According to a report from the Associated Press, the Washington State Transportation Department announced that Bertha moved two feet on Tuesday which was just enough progress […]
January 30, 2014
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