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Wiggert & Co. GmbH, 76227 Karlsruhe, Germany

EnCon United supports fabrication of precast liner segments for Seattle highway tunnel …


… using advanced batching system The 6.8 magnitude Nisqually earthquake that struck eastern Washington State in 2001 shook a wide area of the U.S. Northwest, damaging numerous structures including many roads and bridges. The damage and subsequent repairs of a 1950s era reinforced concrete double- decker highway led to an ambitious replacement plan that includes the world's largest diameter highway tunnel. On July 30th, an $80 million tunnel boring machine (TBM) departed its 80-foot deep launch pit near the Seattle waterfront. The TBM – the world's largest – arrived in April 2013 from Osaka, Japan, and its 41 pieces were lowered into the launch pit for assembly. At speeds of up to 35 feet per day, the earthworm-like TBM will burrow its way below nearly 200 buildings and a maze of subsurface infrastructure for nearly two miles, surfacing just south of Lake Union in the fall of 2014.

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Wiggert & Co. GmbH
Wachhausstr. 3b
76227 Karlsruhe, Germany
T +49 721 943460
F +49 721 402208
info@wiggert.com
www.wiggert.com

Encon Washington, LLC
5415 - 189th Street E
Puyallup, WA 98375, USA
T +1 253 8462774
F +1 253 8469628
www.enconwashington.com

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 12 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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