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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Suite 1000, Portland, OR 97204

Big Pipe Portal

Big Pipe PortalBig Pipe Portal

Artists from the architecture and design firm rhiza A+D created the "Big Pipe Portal" from materials used in constructing Portland's East Side Big Pipe.

The arch is installed over a section of the Willamette Greenway Trail next to the Swan Island CSO Pump Station as part of the city's Percent for Art Program.

In 2011, Environmental Services connected the pump station with the 6-mile, 22-foot diameter East Side Big Pipe to control combined sewer overflows (CSOs) to the Willamette River. The West Side Big Pipe connected to the pump station in 2006.






Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server. is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.