This video shows a short clip of a worker replacing a cutting tool inside the SR 99 tunneling machine in January 2014. Crews working for Seattle Tunnel Partners (STP), WSDOT’s contractor for the SR 99 Tunnel Project, changed a number of tools during 158 hours of recent inspections performed under hyperbaric conditions. Tunneling experts now believe that the clogs and other factors contributed to the stoppage of tunneling on Dec. 6, 2013. As the project’s design-build contractor, it is STP’s responsibility to determine the best and most expedient way to resume tunneling.
View this complete post...Posts Tagged ‘Washington’
Seattle, WA: Fixing the Tunneling Machine
Wednesday, February 19th, 2014February 25-27, Washington DC: High Speed Rail Summit 2014
Wednesday, February 12th, 2014Don’t miss the 2014 High Speed Rail Summit in Washington, DC this February 25-26. Transportation secretary Anthony Foxx will headline the summit.
Other highlighted speakers include: Karen Hedlund, FRA Deputy Administrator; John Mica, Congressman; Loretta Sanchez, Congresswoman; Stephen Gardner, Amtrak Vice President;
View this complete post...Washington, DC: The Blue Plains Tunnel Project
Friday, February 7th, 2014LiUNA! Mid-Atlantic is working with Traylor/Skanska/Jay Dee to complete the DC Water Blue Plains Tunnel Project in Washington, DC. See the story of how this job is helping with local hiring in the DC Metro Area
View this complete post...Broadband in Washington State
Thursday, January 23rd, 2014WASHINGTON STATE BROADBAND OFFICE
For the broadband ecosystem of Washington State, 2013 was a year of getting up to speed. Most of the major infrastructure projects funded through the American Recovery and Reinvestment Act were completed during the year. The largest of these projects was construction of more than 1,300 miles of “middle mile” fiber optic cable.
Washington, DC: Freezing the Ground for the First Street Tunnel
Wednesday, January 15th, 2014DC Water’s Contractor (SKJD) will utilize an innovative ground freezing technology to improve ground condition in advance of shaft, adit and near surface construction of the First Street Tunnel Project. By creating a natural gas generated closed loop brine system, the ground will be stabilized in advance of excavation. Ground Freezing ensures that the required excavation in the four construction staging areas for this important project will be fully stabilized.
View this complete post...Implementing Public Private Partnerships During Challenging Economic Times
Monday, January 6th, 2014GEORGE MASON UNIVERSITY
How has the 2008 Economic Crisis impacted the design, financing, and construction of highway public–private partnership (PPP or P3) projects in the United States? In December 2007, on the eve of the economic crisis, the Virginia legislature approved a P3 to construct a 14-mile (22.5 km) high occupancy toll (HOT) road (the 495 Express Lanes) to alleviate heavy traffic on the Capital Beltway around Washington, DC. This case study looks at the impact the 2008 Economic Crisis and associated economic challenges between 2008 and 2012 had on this project and considers what governments and other stakeholders should be aware of when implementing P3s during adverse economic times.
Washington, DC: Streetcar Construction
Thursday, December 19th, 2013For the last several months, DDOT and the streetcar team have been busy at work along H Street and Benning Road on the last leg of streetcar construction. Right now the team is performing final design and construction for several areas of the project, including streetcar turnarounds, the Car Barn Training Center, pole and overhead wire installation, track installation for turnarounds, pocket tracks, and final roadway.
View this complete post...Who Pays for Parking?
Monday, December 16th, 2013SIGHTLINE INSTITUTE
An analysis of 23 recently completed Seattle-area multifamily housing developments reveals that the practice of providing abundant “cheap” parking actually makes rental housing more expensive—particularly for tenants with modest incomes and who don’t own cars.
Washington, DC: Don’t Miss Transportation Camp 2014
Friday, December 13th, 2013A preview of one of the most exciting transportation technology events of the year, happening the weekend before the big annual Transportation Research Board conference in January.
View this complete post...Lake Washington, WA: Coffer Cell Launch
Tuesday, December 10th, 2013On Nov. 26, 2013, SR 520 bridge construction crews launched a 660-ton coffer cell onto Lake Washington. This coffer cell will be used to create a dry work space so that crews can complete repairs to the end walls of Pontoon U and Pontoon V on Lake Washington.
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