This past year has marked several milestones for the Seattle tunnel project, or state Route 99 tunnel, and WSDOT has collected them in a short video.
By Daniel DeMay, SeattlePI, Seattle Post-Intelligencer
Wed, 12/13/2017 - 7:07pm
This past year has marked several milestones for the Seattle tunnel project, or state Route 99 tunnel, and WSDOT has collected them in a short video.