Skip to Main Content View Text-Only

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

Subscribe to RSS feed

Most Recent

View Less

N Commercial and N Shaver Sewer Repair Project

Project Overview

City of Portland Environmental Services – your sewer and stormwater utility - is designing a project to replace and construct nearly 750 feet of sewer pipe in your neighborhood. Heavy tree roots have grown into and are clogging and damaging the 102-year-old pipe. This sewer repair project will protect public health and the environment by reducing the possibility of costly breaks, sink holes and sewage releases to homes, businesses and streets. 

N Commercial / N Shaver Sewer Repair Project

Design Changes

In addition to repairing nearly 400 feet of sewer pipe that runs through Unthank Park, an additional 250 feet of new diversion pipe will be constructed on N Mason St between N Kerby and N Commercial Ave to divert stormwater flow.


Environmental Services has completed the design of the project and is currently in the bidding process to select a contractor for construction. Construction is anticipated to start this summer.

Construction Methods

Environmental Services has selected both trenchless and open trench excavation methods for this project. Learn more about these methods at

For More Information

If you have questions, comments, or concerns about business operations, disability issues or medical or business deliveries, please contact Aaron Abrams at 503-823-6006 or To sign up for periodic email updates, email Ning with “North Commercial” in the subject line.