WSDOT maintenance crews used a bulldozer to push a rolled over semi out of the way on southbound I-405 in Renton. -wsdot on YouTube.
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WSDOT maintenance crews used a bulldozer to push a rolled over semi out of the way on southbound I-405 in Renton. -wsdot on YouTube.
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Bertha, the SR 99 tunneling machine, has arrived in Seattle. This short video provides an overview of Bertha’s journey and the work WSDOT is doing to replace the SR 99 Alaskan Way Viaduct. – wsdot on YouTube
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Courtesy of Hitachi Zosen Corp., this animation shows how the world’s largest tunneling machine works. – wsdot on YouTube
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A montage of the work that will happen on I-90 over Snoqualmie Pass this summer, showing you what happens behind the scenes during closures Monday through Thursday an hour before sunset. These closures are planned for an hour, but could take longer due to the nature of the blast and the amount of debris that [...]
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The second cycle of six pontoons for a replacement State Route 520 floating bridge were towed out of the Concrete Technology Corporation casting basin in Tacoma, Wash., from Jan. 28 to Jan. 31, 2013. In this time-lapse video, crews maneuver a large T-pontoon into position to add the additional floatation needed to tow the supplemental [...]
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This animation shows an example of what a tunnel boring machine looks like and how it works. – wsdot on YouTube
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The culverts beneath US 2 that carry water runoff from the highway and surrounding areas are deteriorating. The corrugated metal pipes are corroded, allowing water to seep in under the roadway and causing the material beneath the highway and median to settle. To prevent further damage to the highway, we will replace five culverts with [...]
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WSDOT and contractor crews closed the SR 520 floating bridge and highway July 13–16, 2012, to tackle an array of jobs, including demolition of the old 84th Avenue Northeast overpass and the last remaining piece of the old 92nd Avenue Northeast overpass, both seen in this video segment. Overpass demolition made way for new lidded [...]
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Crews set girders for the new westbound SR 522 bridge over 164th Street SE in Monroe on May 29, 2012. The girders are 75 to 116 feet long and weigh 39 to 60 tons each. Crews will set a total of 15 girders for the new bridge. The work is part of the SR 522 [...]
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Crews working for WSDOT hustle to set 42 girders for a new lidded overpass on SR 520. See how much progress is made from a weekend closure of the roadway. – wsdot on YouTube
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