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University Link - Design
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| Service: | Sub-consultant for NATM/SEM design and waterproofing design.
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| Estimated cost: | Commencement: | July 02, 2007
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Completion date: | January 02, 2009
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| Location: | 401 S. Jackson Street Seattle, WA 98104 United States |
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| Geology description: | The geology along the alignment consists of over-consolidated glacial clay and till with fractured zones, as well as sand and silt layers. |
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| Bid cost: | Final cost: | $1.6 billion USD
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Description
University Link is a 5km light rail extension that runs in twin-bored tunnels from Downtown Seattle north to the University of Washington, with stations at Capitol Hill and on the University of Washington campus. The twin-bored tunnels are connected with 20 cross passages. Dr. Sauer & Partners performed the temporary and final support design for the cross passages. This included the design of excavation and support measures and the development of specific ground support categories, settlement analyses, and the structural analyses of initial and permanent lining.
