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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

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Arbor Lodge – Kenton Sewer Repair Project

Updated October 22, 2019Button. Click to sign up for email updates

Environmental Services – your sewer and stormwater utility – continues to design a project in the Arbor Lodge - Kenton Neighborhood area to repair or replace over 2 miles of public sewer pipe that are on average 87 years old and in deteriorated condition. The project will also include repairing or adding about 3,000 feet of service lateral connections from the main sewer line to the curb in front of homes or businesses. Taking these actions now will help protect the public and the environment by reducing the possibility of costly breaks, leaks, blockages and sewage releases to homes, businesses, street, streams, and rivers.


Construction is anticipated to begin in the spring or summer of 2020 and will take about a year and a half to complete all work in the project area.

What's Happening Now?

Over the last several months, we have identified which sewer pipes will be included in the project and how each pipe will be repaired or replaced. Additionally, we have also identified locations where we expect evening or night work will be needed (see map below).

As the design process continues you may see crews in your neighborhood surveying land, accessing sewers from manholes to inspect pipes, and placing temporary paint markings on the pavement to mark the locations of pipes and other underground utilities. To learn more about these activities go to

Repair Locations and Construction Methods:

Construction methods are noted on the project map below. Some will require digging trenches. Others will replace pipes through manholes or access pits to reduce surface disruption.

  • Open Trench Excavation: The contractor excavates a trench, installs a new pipe, fills in the trench and restores the disturbed pavement.
  • Cured-in-Place Pipe Lining (CIPP): Through a manhole, the contractor inserts a flexible liner into the old pipe. The liner hardens, creating a new interior lining.
  • Pipe Bursting: The contractor pushes a bursting head into the sewer line to break apart the old pipe while pulling a new pipe into place behind it.

To learn more about sewer construction methods go to


Evening and Night Work:

While the majority of work throughout the project will occur during the day, up to eight shifts of evening or night work will be needed  to complete Cured-in-Place Pipe-Lining (CIPP) repairs on larger section of mainline sewer pipe (see above map for locations). During the CIPP lining process, work crews insert a flexible liner inside the old pipe. The liner is inflated to press the outer portion firmly against the inside wall of the old pipe. The liner is exposed to heat or ultraviolet light (UV) to “cure” the pipe.  During curing, the liner gradually hardens against the inside of the old pipe forming a rigid, smooth surface that seals cracks and restores the old pipe to near-new condition.

The CIPP process typically takes one day at each location, but due to the size of the main sewer pipe at a few locations, crews will need to work into the evening during the CIPP process to allow the liner to harden completely. On Rosa Parks Way between Fenwick and Concord avenues, two overnight shifts will be needed to complete mainline sewer repairs due to high traffic volumes during the day. Evening and night work will require equipment that generates noise, including sewer cleaning trucks, compressors, generators, pumps, and ventilation fans. Night work will also require lighting of the work zone. Other work will occur at these locations during regular daytime construction hours.

Noise Variance 

Portland noise code allows construction from 7:00 a.m. to 6:00 p.m. Monday through Saturday. Work after 6:00 p.m. and before 7:00 a.m. and all hours on Sundays requires a noise variance from the Portland Noise Office. Environmental Services was granted a noise variance to allow for up to eight evening and night work shifts in specific locations.Shifts can be scheduled by the contractor at any time over the course of the project and may not be consecutive. Residents will be notified before work begins. Below is a summary of evening and night work by locations.

Evening Work – One extended shift at each of the six locations.

Crews will begin the Cured-in-Place Pipe lining process at each location at 7:00 a.m. The shift will end when the liner has hardened completely.  The end time is likely to range between 8:00 p.m. and midnight. 

  1. Alaska Street (Chautauqua Blvd to Chautauqua Pl) – 1 extended shift - all other work at this location will occur during the day.
  2. Chautauqua Blvd (Baldwin to Winchell) – 1 extended shift - all other work at this location will occur during the day.
  3. Greeley Ave (Holman to Rosa Parks) – 1 extended shift - all other work at this location will occur during the day.
  4. Greeley Ave (Rosa Parks to Dekum) – 1 extended shift - all other work at this location will occur during the day.
  5. Greeley Ave (Dekum to Bryant) – 1 extended shift - all other work at this location will occur during the day.
  6. Greeley Ave (Bryant to Buffalo) – 1 extended shift - all other work at this location will occur during the day.

Night Work – Two overnight shifts at one location.

Night work hours are from 9:00 p.m. to 7:00 a.m.

  1. Rosa Parks Way (Fenwick and Concord) – 2 overnight shifts – all other work at this location will occur during the day.

Notification has been sent to homes and businesses located near night work with more details about the proposed noise variance.

For More Information:

Contact Matt Gough by email or phone 503-823-5352. In your email and voicemail messages, please provide your name, property address, and the project name (Arbor Lodge-Kenton).

We would like to hear from you about special events, school activities, and community services in your neighborhood you think might be impacted by this project. Also, we want to know if you have any concerns related to business operations, disability or mobility issues, medical or business deliveries, and proposed night work. Your input will help us minimizes the impact to your neighborhood during construction. Please contact us to share your input.

We will communicate directly with individual property owners expected to be impacted by this project and keep neighbors informed as well. Before and during construction, we will be sending out periodic email updates to keep you posted on the schedule, pre-construction activities, and traffic restrictions. We encourage you to sign up now to receive updates by emailing with “Arbor Lodge - Kenton” in the subject line or clicking the SIGN UP for email updates icon above.