More From Washington State DOT

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 ...

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 ...

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 ...

WSDOT announces I-5 detours

WSDOT announces I-5 detours

Posted by Amanda Bayhi on May 24, 2013

The Washington State Department of Transportation (WSDOT) has announced that Interstate 5 has been closed in both directions in Skagit ...

Cracking Cold

Cracking Cold

Posted by Equipment World Staff on Feb 17, 2012

Solving the Riddle of RAP and Thermal Cracking   By Tom Kuennen, Contributing Editor Use of reclaimed asphalt pavement (RAP) in hot-, warm- ...

Road Science Tutorial

Road Science Tutorial

Posted by Equipment World Staff on Jul 07, 2011

Quiet Moves A war is being waged on noise generated by pavements and highways. By Tom Kuennen, Contributing Editor Today, highway noise is ...

Road Science Tutorial

Road Science Tutorial

Posted by Brooke Wisdom on May 09, 2011

Building Better Roads from the Ground Up A strong foundation is the key to a strong pavement structure By Tom Kuennen, Contributing ...

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