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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

More Contact Info

Alder Trunk

Updated July 28, 2017

This summer, Environmental Services installed a valve and underground vault at the intersection of SE 7th Avenue and Yamhill Street. The equipment will reduce the rare build-up of air pressure in the public sewer system that can occur during intense rainstorms. The project will help to ensure the sewer system operates safely and efficiently.

Construction Has Been Completed

The project was located near the busy intersection of SE 7th and Yamhill. Construction began on July 10 and took two weeks to complete. This included time to set up, install piping and structures, and then restore pavement disturbed during construction. 

Crews worked at the manhole in the street and installed piping that connects to a new underground pressure valve and vault structure. There were temporary traffic restrictions, including reduced lanes and assistance from flaggers. Parking was temporarily removed around the work area during construction.

Alder Trunk map

For more information

If you have questions about the project, please call or email:

Cheryl Kuck
Community Outreach
Phone: 503-823-7898

If you have a concern or question about a pipe repair near you, please be sure to include your name, property address, and project name (Alder Trunk) in your voicemail and email so we can provide you more details about what happened in front of your property. Also, please write "Alder Trunk" in the subject line of your email.

Other Projects in Your Area

Environmental Services maintains and improves the City’s sewer infrastructure. The SE Alder Pump Station Upgrade Project will improve reliability, increase pumping capacity and help prevent sewage releases to protect public health, water quality and the environment. For more information about that project scheduled to begin in August 2017, visit