West Side Big Pipe Photos Photos taken on the West Sid eof the Willamette River Ankeny Shaft Clay Street Shaft Confluent Shaft Greeley Shaft Ground Improvements Nicolai Shaft Oregon Dignitaries Tour the Tunnel Peninsular Force Main Segment Plant Southwest Parallel Interceptor Swan Island Pump Station Tanner Extension Tunnel Boring Machine (TBM) Upshur Shaft West Side CBOs West Side CSO Tunnel OMSI CSO Exhibit Photos taken of the CSO Exhibit at OMSI East Side Big Pipe Project Photos Photos taken of the East Side of the Willamette River East Side CSO Tunnel Shafts Before Construction