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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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NE 12th/13th and Humboldt Sewer Repair Project

Updated March 10, 2019
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Environmental Services is has completed design of a sewer repair project in the King neighborhood to repair or replace approximately 700 feet of public sewer on NE 12th and 13th avenues between Humboldt and Wygant streets. The project will also replace 27 public lateral connections from the sewer mainline to the curb. These pipes are almost 100 years old, and are deteriorating due to age. This project will reduce the possibility of costly breaks and sewage releases to homes, businesses, and streets.


Construction is anticipated to begin mid to late May 2019 and take about two months to install new public sewer pipe on each block (see map for locations). The city’s contractor will provide notice to adjacent properties one to two weeks before construction begins. All work will occur between 7:00 a.m. and 6:00 p.m., Monday through Friday, with the option of working Saturdays.

Construction Method

Open trench construction will be used to complete all work. Go to to view photos and learn more.  After sewer construction, crews will backfill trenches and apply a temporary asphalt patch. The temporary patch may be in place for several weeks while quality control inspections occur. After all work has met required standards, crews will return to apply a permanent patch.  

What to Expect Before Construction

Project Map

Water Meter Relocation Work: The Water Bureau will be relocating two water meters in the project area to allow for sewer construction.  The Water Bureau will notify residents if there is a disruption to water service.

Tree Trimming: To accommodate the large equipment needed to complete this project, certified arborists will supervise trimming of street trees and some private trees in the project area. The trimming will remove low branches that are overhanging the street to reduce the possibility of large equipment damaging trees and to help ensure public safety. Limbs over the sidewalk will not be trimmed as part of this project. 

Other Pre-construction Activities: Before construction you may also see crews surveying, marking utilities, and bringing equipment and supplies to the project area. Some equipment and materials will be stored on your street or nearby streets overnight.

What to Expect During Construction:

  • Local Access: Local access to all properties will be maintained, but construction activities may impact or delay normal use of your

    driveway. Please allow for extra time for our crews to make the area safe before entering or leaving the construction area.

  • Traffic Delays: You should also expect traffic delays in and near the work area. Please observe traffic control devices and signs, and follow the directions of flaggers if present.

  • Parking Restrictions: On-street parking will be restricted in and near the work zones to create a safe work environment and to stage equipment and materials.

  • Equipment Storage: Some equipment and materials may be stored overnight on your street, nearby streets, or other public right-of-way areas.

  • Noise, Vibration, and Dust: Construction creates noise, vibration, and dust.

  • Periods of Inactivity: Work will be conducted in multiple phases. A variety of factors, including conditions underground, weather, subcontractor schedules, and availability of materials may cause periods of inactivity. 

  • Maintained Service: Water and other utilities will remain in service during construction.

For More Information

If you would like more information about the project or have questions and concerns you’d like to discuss, please call or email:

Matt Gough
Community Outreach 
Phone: 503-823-5352

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 (NE 12th/13th and Humboldt) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also, please write "12th/13th Humboldt" in the subject line of your email. Click SIGN UP to sign up for periodic email updates.