More From WSDOT

Washington state will have $1.8 billion backlog of pavement preservation projects by 2025, report finds

Washington state will have $1.8 billion backlog of...

Posted by Chris Hill on Apr 24, 2015

In its recent report on Washington's transportation challenges, The Road Improvement Program says the state needs $2.8 billion for pavement preservation from ...

Did Seattle’s SR 99 tunnel really require Big Bertha? Indeco argues breakers are the answer

Did Seattle’s SR 99 tunnel really require Big Bertha?...

Posted by Marcia Gruver Doyle on Apr 23, 2015

  Tunnel boring machines such as Big Bertha, the 7,000-ton machine sidelined after a massive fail under the streets of Seattle, ...

Water main damaged by Big Bertha repair excavation could cost WSDOT $4 million

Water main damaged by Big Bertha repair excavation...

Posted by Wayne Grayson on Apr 14, 2015

Four months after crews temporarily stopped excavation on a repair pit for the world's largest tunnel-boring machine due to ground sinkage, ...

PHOTOS: Big Bertha’s 2,000-ton front end lifted to the surface. How the world’s largest tunneler was raised

PHOTOS: Big Bertha’s 2,000-ton front end lifted...

Posted by Wayne Grayson on Apr 01, 2015

After a year of slumber and almost a month after chewing her way into a 12-story repair pit, Big Bertha, the ...

Crane sends pipe careening into Seattle bus on Highway 520 bridge followed by a crashing traffic sign

Crane sends pipe careening into Seattle bus on Highway...

Posted by Wayne Grayson on Mar 19, 2015

Eight passengers on a bus traveling across the Highway 520 in Seattle were hospitalized Tuesday night after a construction accident ...

VIDEO: Big Bertha breaks through: tunnel-boring machine enters repair pit, ready for disassembly

VIDEO: Big Bertha breaks through: tunnel-boring machine...

Posted by Wayne Grayson on Mar 09, 2015

Though she remains very far from being done, Big Bertha completed a very important leg in her journey beneath Seattle ...

Big Bertha wakes from one-year nap, begins to chew her way into repair pit

Big Bertha wakes from one-year nap, begins to chew her...

Posted by Wayne Grayson on Feb 19, 2015

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 ...

Crews reach the end of digging a 120-foot repair pit Bertha will chew her way into.

PHOTOS: Fixing Bertha: How workers dug a 12-story pit...

Posted by Wayne Grayson on Feb 11, 2015

The Big Bertha saga recently received a major update: crews with lead contractor Seattle Tunnel Partners have finished digging the ...

Excavation stopped on Big Bertha repair pit due to major ground sinkage in area

Excavation stopped on Big Bertha repair pit due to...

Posted by Wayne Grayson on Dec 15, 2014

The latest in a long string of delays to affect tunnel-boring machine Big Bertha has far greater implications than any of the ...

PHOTOS: Six bridge/transportation projects receive 2014...

Posted by Brian Ethridge on Oct 14, 2014

  Winners of the 2014 Precast/Prestressed Concrete Institute (PCI) Design Awards competition have been announced, and six bridge/transportation projects were honored. “It ...

VIDEO: Watch time-lapse of Highway 99 construction

VIDEO: Watch time-lapse of Highway 99 construction

Posted by Brian Ethridge on Sep 03, 2014

The Washington State Department of Transportation was kind enough to release the following time-lapse video of construction on Highway 99. ...

Truck hauling excavator collides with 5 bridges, taking a chunk out of each (PHOTOS)

Truck hauling excavator collides with 5 bridges, taking...

Posted by Wayne Grayson on Jul 23, 2014

While being hauled by a truck traveling through Thurston County, Washington, last week, an excavator's boom collided with five different ...

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