Newly appointed Washington State Secretary of Transportation, Lynn Peterson officiated this mornings "topping off" the machine. (Look carefully, you can just make out an American flag attached to the Head.)
More important, officers from from Seattle Tunnel Partners (STP), in charge of actual construction of the tunnel. STP is a joint venture of Dragados USA and Tutor Perini Corporation. Local firms involved with the project include Frank Coluccio Construction and HNTB (nee Howard, Needles, Tammen, Bergendoff) Corporation.
And the "media."
Lifting the 17.45 m (57.5 ft) diameter Head, weighing in at 887 tons, from the Goldhoffer transporter, was a piece of cake for the modular rail mounted crane, with a capacity of 1,000 (short) tons.
Unfortunately, the media has never addressed the issue of just how complicated this tunnel construction is. To learn why divers and a decompression chamber are associated with this project, click on this link.
As "They" say, a picture is worth a thousand words. So I've processed a series of frames, visualizing this event.
It has been a thrill to witness the assembly of the Worlds Largest Tunnel Boring Machine. Many "thanks" to the Washington State Department of Transportation (WSDOT) for installing the web cam.
You can follow the on-going assembly by selecting the SR99 Web Cams button in the right margin. There are additional cameras covering action at either portal, as well as time lapse videos.
• Some Assembly Required
• First Ashore
• Unloading Bertha Has Begun
• Something Heavy This Way Comes!