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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 June 29, 2018Button. Click to sign up for email updates

Environmental Services continues construction to repair or replace about 800 feet of public sewer pipes in downtown Portland that are 100 to 140 years old and in deteriorating condition. The sewer pipes are showing signs of cracks, breaks, holes, offset pipe connections, and obstructions, putting the pipes at risk of structural failure. Urgent repairs at three locations shown on the map below will protect the public and the environment by reducing the possibility of sewage releases to buildings and streets.


Repairs will be made in three locations (see map).

Project map


Construction has been completed at two of the three locations:

  • SW Oak Street between SW 1st and 2nd
  • SW Alder Street between SW 2nd and 3rd

Construction continues at the third location:

  • SW Taylor Street between SW 6th and Broadway – The last portion of pipe lining will occur on a service lateral pipe sometime between July and September 2018. The schedule is dependent upon subcontractor schedules, availability of materials, and other factors.

Please note that construction schedules are also weather-dependent. Rain causes increased stormwater in the pipes, which makes it more difficult or impossible to bypass the combined sewage and stormwater flows in order to repair the pipes.

Work Hours

Regular work hours will be 7 a.m. to 6 p.m. Monday through Friday, and Saturdays as needed. The Portland Noise Office granted Environmental Services a Noise Variance to enable the city’s contractors to work at night to complete the pipe lining sewer repair work. Each of the three locations will require up to three nights of work.

Construction Methods and Traffic Impacts

A combination of Cured-in-Place-Pipe Lining and Open Trench Excavation construction methods will be used on this project. Traffic controls will be necessary in the work zones and will create delays. For details on the construction methods and traffic impacts, see the Project Overview.

For More Information

If you have a question or concern, call the project hotline at 503-823-5315, leave a message, and your call will be returned by the next business day.

  • Visit this project webpage for updates using the shortcut
  • Sign up for email updates by clicking the SIGN UP button above and selecting SW Alder-Oak-Taylor Sewer Repair Project from the dropdown menu
  • Call the noise hotline at 503-823-8336 or the Portland Noise Office at 503-823-7350 to report concerns about nighttime construction noise
  • Email city outreach staff
  • For information about other projects in the Central Business District, go to To avoid circling around construction to find parking, please use SmartPark garages; those near our work zones are shown on the project map.

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

Project Overview

Including the project description, map and schedule

Community Outreach

Check out current and previous communications about the project