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Posts Tagged ‘WSDOT’

Seattle, WA: Fly Through the Entire SR 99 Tunnel

Tuesday, October 24th, 2017

Now that the tunneling machine Bertha’s work is complete, it’s possible to fly a drone with a video camera from end-to-end inside Seattle’s SR 99 tunnel. In two minutes, you’ll see two miles of ongoing construction work. The upper roadway of the tunnel’s double-deck highway is more than 85% complete. Up next? Installation of the lower roadway, and all the systems it takes to operate a modern tunnel.

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Washington State DOT: Bike-Friendly Washington

Friday, June 30th, 2017

Washington state offers great biking! Whether you like scenic or sensible—or a bit of both—when you bike the Evergreen State you can experience dramatic mountain vistas, serene lakes and islands, rolling hills, rushing rivers, friendly small towns and exciting big cities, beautiful trails and protected bike lanes, with transit and ferries to extend your range. Washington State Dept. of Transportation and local/regional government partners are working together to create a network of connections that let you choose healthy, active transportation. Whether you ride for utility, health, travel, or recreation, we invite you to pedal Washington.

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Seattle, WA: SR 520 Floating Bridge Documentary

Friday, April 28th, 2017

This short documentary tells the story of the new floating bridge across Lake Washington in Seattle, Washington. The bridge was a project of the SR 520 Bridge Replacement and HOV Program and opened to traffic in April 2016.

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Seattle, WA: Bertha Breaks Through

Friday, April 7th, 2017

The SR 99 tunneling machine, Bertha, breaks through to daylight on April 4, 2017 near Seattle’s iconic Space Needle after tunneling 1.7 miles underneath downtown Seattle. See what one of the world’s largest tunneling machines looks like up close as only a drone can show.

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Woodland, WA: Drone Footage of Mudslide on SR 503

Friday, March 31st, 2017

Clearing the debris slide blocking SR 503, 20 miles east of Woodland isn’t as easy as just removing trees and rocks from the highway. A large crack shows where the rock face of the slope has separated from the hillside, making it unsafe below. Record rainfall along with freezing temperatures aided in the debris fall. As of Friday, March 17, the slope is still moving and unstable. We shot this video using a drone, so we can start developing a permanent repair plan.

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WSDOT: Building a Highway Underneath Seattle

Tuesday, December 20th, 2016

With a time-lapse camera mounted 54-feet high, you almost get a bird’s-eye view of work inside Seattle’s SR 99 tunnel. As the tunneling machine Bertha builds the tunnel, road crews are right behind – building the foundations, walls and the top deck of the double-deck highway drivers will travel on when the tunnel opens. Take a look.

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Washington State DOT: Building the Floating Bridge over Lake Washington

Tuesday, December 6th, 2016

An overview of the reasons why the new SR 520 floating bridge was built on Lake Washington, and some of the solutions the project team developed to efficiently build the world’s longest floating bridge. The project won a 2016 Excellence in Design (Engineering) Award from the Design-Build Institute of America.

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Washington State DOT: How ATDM Works

Thursday, August 4th, 2016

The ATDM overhead active traffic and demand management signs will display speed limits, lane status or variable messages so driver know what’s happening ahead.

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Seattle, WA: Workers Inside the SR 99 Tunneling Machine

Tuesday, July 5th, 2016

This video was provided by Ballard Marine Construction, the firm in charge of managing and performing hyperbaric work on the SR 99 Tunnel Project in Seattle. It shows crews at work behind the SR 99 tunneling machine’s cutterhead during a planned maintenance stop in spring 2016. To stabilize soil and water that would otherwise flow through openings in the cutterhead, crews must pump compressed air into their work space at the front end of the machine.

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Puyallup, WA: The Historic Meridian Street Bridge

Monday, June 20th, 2016

For more than eight decades the Meridian Street Bridge over the Puyallup River has served as a portal for cities along the Puget Sound to community of Puyallup, Washington. Significant for its design, it is the only one of its kind in Washington, and may very well be unique in the United States, if not the world.

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