Hitachi Zosen to Build SR 99 Tunnel Boring Machine
From WSDOT:
http://www.wsdot.wa.gov/News/2011/07/18_tbm-contractor.htmÂ
Hitachi Zosen will design and build the tunnel boring machine for the Sr 99/Alaskan Way Viaduct project. They have built machines for several large diameter tunnels in the past and are working on the machines for part of the University Link project.
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