SR 99 Tunnel Project CONSTRUCTION UPDATES Bertha Begins Her Journey - PowerPoint PPT Presentation
SR 99 Tunnel Project CONSTRUCTION UPDATES Bertha Begins Her Journey Three Days Later Building a Tunnel Ring Tracking Berthas Progress Receiving Pit Excavation Progress Viaduct Column Painting Completed!
SR 99 Tunnel Project CONSTRUCTION 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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