'Bertha' Arrives in Seattle

<p>Photo courtesy: WSDOT</p>

Photo courtesy: WSDOT

SEATTLE (AP) -- The world's widest tunnel boring machine arrived in Seattle in pieces Tuesday aboard a ship from Japan.

The ship was greeted in Elliott Bay by a fire boat spraying water.

The $80 million machine called Bertha was built at a factory in Osaka. Its 41 pieces will be reassembled in a pit to begin the year-long dig to create a two-mile tunnel under downtown Seattle.

The new section of Highway 99 replacing the Alaskan Way Viaduct will have a diameter of nearly 58 feet.