Seattle, Washington – SR 99 Tunnel Project

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SR 99 Tunnel Project

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Seattle Tunnel Partners (Dragados USA/Tutor Perini JV)

After its arrival in Seattle early in April, unloading, transporting, assembling, testing and commissioning of the 57.5-ft Hitachi Zosen TBM continued into July leading to a start of tunneling on July 30, 2013.  An ILWU (Longshoremen) picket line on Aug. 20 blocked access to tunnel muck handling facilities on Terminal 46, resulting in a stoppage of tunneling after the TBM had bored 24 ft.  The picket line was removed on Sept. 17 and tunneling resumed on Sept. 23. Launching of the TBM, using a launching frame and 13 temporary rings in the launch pit, was completed during the last week of September.

Key project personnel include: Seattle Tunnel Partners Executive Committee: Jack Frost and Alejandro Canga; Project Manager: Chris Dixon; Deputy Project Manager: Greg Hauser; Construction Managers: Mike Kerchner and Juan Luis Magro; General Superintendent: Joel Burch; Tunnel Superintendents: Tom McMahon, Jorge Vazquez and Bill Monahan; Safety Manager; Dan Weathers. Information: Chris Dixon, (206) 971-8215.

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