Viaduct coming down to make way for deep-bore tunnel

Nearly 11 years after the Nisqually earthquake showed how vulnerable the Puget Sound area is to major shakers, the waterfront Alaska Way viaduct is well on its way toward being replaced. It’ll be another three years before completion of a deep-bore tunnel enables the city to completely remove the double-decker behemouth. Once it’s gone, a whole new zone of the city will open up—and a whole lotta noise will be shifted underground.