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.
View this complete post...Posts Tagged ‘WSDOT’
Washington State DOT: How ATDM Works
Thursday, August 4th, 2016Seattle, 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.
View this complete post...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.
View this complete post...Seattle, WA: Tunneling Under the Alaskan Way Viaduct
Tuesday, May 10th, 2016
After nearly a week of tunneling under the Alaskan Way Viaduct, crews are steadily continuing Bertha’s underground drive towards downtown Seattle. This video gives you a behind-the-scenes glimpse into how the new tunnel is being built, showcasing the complex operations involved in this project. Massive concrete ring segments are transported to Bertha’s segment erector where they are lifted into place, allowing the machine to push forward while the excavated soil is transported along a network of conveyer belts and into a barge moored at Elliott Bay’s Pier 46.
View this complete post...Washington State DOT: First Drive on the SR 520 Floating Bridge
Thursday, April 14th, 2016
At 3:50 a.m. on April 11, 2016, WSDOT Incident Response Team drivers completed the maiden voyage across the new SR 520 floating bridge. The westbound lanes on the new bridge are now open to all drivers. Eastbound lanes will switch to the new bridge during the weekend of April 22-25.
View this complete post...Bremerton, WA: The Manette Bridge Documentary
Tuesday, February 2nd, 2016
By the summer of 2010 in Manette, Washington, the people of this quiet community by the water had learned that soon they would have to say goodbye to an old friend–a friend that had been with them for 80 years and had served their community year-in and year-out; a strong, faithful companion who, now ravaged by time and the elements, would be unable to continue. That friend was simply known as the Manette Bridge.
View this complete post...Washington State DOT: Aerial Views of a Washed-Out SR 12
Wednesday, January 20th, 2016
Seattle, WA: The Part of the Tunnel Built WITHOUT Bertha
Thursday, December 31st, 2015
Approximately 20 percent of the SR 99 tunnel was designed to be built without Bertha, the SR 99 tunneling machine. Seattle Tunnel Partners bored more than 1,000 feet of tunnel before they stopped to repair Bertha. Since then, they have built an additional 1,200 feet of tunnel using cut-and-cover tunnel construction. This video gives a close-up look inside the newest part of the project to learn more about the tunnel built without Bertha.
View this complete post...Washington State: Corridor Capacity Report
Tuesday, November 3rd, 2015
Washington State DOT: How To Move a Bridge (Time Lapse)
Friday, August 21st, 2015
Over the weekend of Friday, Aug. 7, 2015, crews relocated the obsolete 379-ton 1920’s era Puyallup River bridge about a quarter-mile to WSDOT property. WSDOT’s goal is to recycle the truss by offering it for another purpose. If unsuccessful, WSDOT will recycle the steel.
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