The world’s largest boring machine that has sat mostly idle for about two years moved Tuesday morning. Bertha crept forward near Pier 48, before installing a tunnel ring at the bottom of the ...

Experts from the manufacturer in Japan are due in Seattle next week to explain exactly how to repair “Bertha,” the stalled tunnel boring machine. The earth moving work beneath downtown Seattle somehow ...

Workers on the mammoth Gateway tunnel project are getting ready to start drilling through the Palisades in the new year. The Gateway Development Commission — the public authority behind the ...