PHOTOS: The new SR 99 deep bore tunnel machine


Credit: WSDOT

The Washington State Department of Transportation on Thursday posted new photos of the machine that will drill the hole for the State Route 99 deep bore tunnel.

The tunnel will replace the Alaskan Way Viaduct on Seattle's waterfront.

To view more images of the machine, click on the slideshow on the left or visit WSDOT's Flickr page: