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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By breaching a 40 year old levee, engineers reconnect historic Entiat River side channels and develop valuable salmon and steelhead habitat. The Tyee Ranch Project in north central Washington state has gigantic wood structures that mimic natural log jams. The intent is to create scour holes and deep cover for fish. http://on.doi.gov/XXyTGY -reclamation on YouTube.
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SEATTLE DEPARTMENT OF TRANSPORTATION
The 2012 Transportation Action Agenda outlines policies, actions, and performance measures for SDOT over a two-year period. It is organized around five core principles.
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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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Innovation NewsBriefs
Vol. 24, No. 1
As we enter the New Year (and begin our 24th year of publication), the debate about transportation funding is taking a new turn. Talk of raising the federal gas tax has become muted and even the efficacy of the gas tax itself is being questioned. And no wonder: vehicles are becoming more fuel efficient, CAFE standards are becoming more stringent, vehicle use is leveling off, and hybrids and electric vehicles are expected to slowly but surely increase their market penetration.
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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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