East Side CSO Tunnel Complete

Looking Northbound

Tunneling Complete

Rosie the TBM Inside McLoughlin Shaft prior to cutterhead removal

Cutterhead Removal

The TBM Cutterhead is removed from the McLoughlin Shaft

Rosie the TBM comes to the surface

Tunnel Segments

Alder Shaft

Slurry separation plant workers

Opera Shaft overview

Opera Shaft Groundbreaking

Outfall 28 (SE 18th and Insley)

Outfall 46 breakthrough

Group shot of workers when MTBM broke through at Outfall 46

Outfall 40

Microtunnel Boring Machine (MTBM) suspended over shaft

Opera Shaft

Workers examing hydromill teeth

Opera Shaft

Clam exiting shaft

Opera Shaft

West side of TBM front and tail shield & Bowflex seal before start of tunneling

Opera Shaft

Tunnel Boring Machine (TBM) front shield underside showing push rams and hydraulic lines

Steel Bridge Shaft site

Microtunnel Boring Machine (MTBM) under assembly

East Side CSO tunnel

View of northbound tunnel with inspector

Opera Shaft

Close up overview with front shield and workers

Opera Shaft

The cutterhead of "Rosie" the TBM gets christened with the project team

Opera Shaft

Diver looking out of decompression chamber

Opera Shaft

Conveyor positioning over river

Alder Shaft

Flooded excavated shaft with Montage and Portland Storage Co in background