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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

SW Alder-Oak-Taylor Sewer Repair Project

Updated August 21, 2018 - PROJECT COMPLETED

Environmental Services has completed repairs on 900 feet of public sewer pipes in downtown Portland that were 100 to 140 years old and in deteriorating condition. The SW Alder-Oak-Taylor Sewer Repair Project improvements will protect the public and the environment by reducing the possibility of sewage releases to downtown buildings and streets.

Environmental Services appreciates the cooperation and patience shown by downtown property owners, businesses, residents, and the visiting public during this project. Lessons learned from this project will help plan and complete future sewer repairs in the downtown core.

Project Accomplishments

By coordinating with many property owners, businesses, and residents in the project area, Environmental Services completed the following work:

  • Inspected, cleaned, and repaired 820 feet of mainline public sewer pipes
  • Inspected, cleaned, and repaired 80 feet of public sewer service laterals that connect adjacent buildings to the public sewer
  • Investigated 18 sewer service laterals to determine where adjacent buildings are connected to the public sewer
  • Installed 5 sewer cleanouts to provide bypass sewer service during the pipe lining process and to provide access for future sewer maintenance


Repairs were made in three locations (see map).

Project map

Continued Improvements in Downtown Portland

While the SW Alder-Oak-Taylor Sewer Repair Project is now complete, future work in the downtown core will be necessary to repair aging public sewer infrastructure. Visit the webpage at for information on other downtown sewer repair projects in construction and design, or email city outreach staff at Please include your name, business name, location, and phone number in your email so we can provide you specific details about what’s being planned near you.

Project Overview

Including the project description, map and schedule

Community Outreach

Check out current and previous communications about the project