Seattle Light-Rail Tunnel Likely to Break Ground This Year
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TBM Supplier Selected for Seattle’s Alaskan Way Viaduct Replacement Tunnel
Hitachi Zosen Corporation has been selected by Seattle Tunnel Partners, WSDOT’s joint venture constructing the SR 99 bored tunnel. Hitachi Zosen was the best value manufacturer based on overall technical requirements, support capabilities, price and […]
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Update on Access Pit for Repairing Bertha TBM
There hasn’t been much to report recently for the Alaskan Way Viaduct Tunnel Project in Seattle. As you probably know, Bertha has not advanced since about December of 2013 after drilling through an abandoned steel […]
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Alleghenny Tunnel Nearing Completion but Hurting for Money
Pittsburgh’s light rail expansion project dubbed the North Shore Connector Project has passed underneath the Allegheny River despite some earlier troubles. The cut and cover tunnel portion is complete, and the TBM bored portion of […]