In this Feb. 25, 2014 photo provided by the Washington Dept. of Transportation, the launch pit that was used to start the massive tunneling machine being used to dig a waterfront tunnel to replace the Alaskan Way Viaduct in Seattle is shown. WSDOT says that over the next couple of weeks, workers will be making room for construction of the double-decker highway inside the tunnel. (AP Photo/Courtesy Washington Dept. of Transportation)
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