See us on TV today on King 5. Ralph Allen of Grace Architects discusses Seattle Tube 6th Ave deep bored tunnel option to replace Alaskan Way Viaduct. (See Video Story)
![]() |
|
See us on TV today on King 5. Ralph Allen of Grace Architects discusses Seattle Tube 6th Ave deep bored tunnel option to replace Alaskan Way Viaduct. (See Video Story)