SR 99 Tunnel Project CONSTRUCTION UPDATESdot.wa.gov/Projects/Viaduct/Media/Default/Documents/Parking...

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SR 99 Tunnel ProjectCONSTRUCTION UPDATES

Bertha Begins Her Journey

Three Days Later…

Building a Tunnel Ring

Tracking Bertha’s Progress

Receiving Pit Excavation Progress

Viaduct Column Painting Completed!

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