In 2011, crews demolished the southern mile of the viaduct, which accounted for nearly half the structure. The remaining portion of the viaduct will be demolished after the SR 99 tunnel opens to traffic. This work is currently expected to take up to nine months.
A new Alaskan Way street will be built in place of the demolished viaduct. This road will connect over the railroad tracks to Elliott and Western avenues on the north end, and to SR 99 near the stadiums at the south end, while providing east-west connections to downtown. The City of Seattle's Office of the Waterfront is leading this project.