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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

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NE Flanders and 66th Sewer Extension Project

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The City of Portland’s Bureau of Environmental Services is continuing our work to repair and replace critical sewer and stormwater infrastructure. Environmental Services will continue to provide information and updates on construction schedules and activities during the COVID-19 emergency. 

Updated May 7, 2020

Environmental Services – your sewer and stormwater utility – has finished designing a project to extend the public sewer system on NE Flanders Street between NE 66th and 67th avenues. This work is part of the City’s ongoing effort to provide property owners a way to directly and independently connect to the public sewer system in order to meet current City Code requirements.

NE Flanders and 66th project map


Construction is anticipated to start in July or August and will take about two months to complete. We are uncertain of the exact schedule yet, but the properties adjacent to construction zone will receive a door notice from the contractor 5-10 days before construction starts.

Private Sewer Line Connections

Bureau staff has been working directly with property owners in the area who have cesspools or septic tanks, and who have non-conforming private sewer connections that will need to be connected to the new sewer system.

Construction Method

Open trench construction will be used to complete all work. 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. See and click on Open Trench Excavation for details.  

What to Expect During Construction

  • Safe Work Site: Safety is our top priority for every construction site. Stay clear of all construction activities and keeping children, pets and vehicles out of construction areas.
  • Maintained Service: All utilities will remain in service during construction.
  • Noise, Vibration, and Dust: Construction creates noise, vibration and dust and disrupts normal neighborhood activity.
  • Local Access:  The contractor will maintain local access to all properties, but construction may impact normal use of your driveway or entrance to your business. Please observe traffic control signs and follow the directions of flaggers.
  • 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 will be stored on your street or nearby streets overnight.
  • Typical Work Hours: Typical work hours are 7:00 a.m. to 6:00 p.m. Monday through Friday, but the contractor may schedule work during the same hours on Saturdays.
  • Schedule Changes and Inactivity: Schedules may change, and you may see periods of inactivity during construction due to a variety of factors, including conditions underground, weather, traffic impacts, subcontractor schedules, and availability of materials.

For More Information

If you would like to learn more about this project, or have questions or concerns:

  • Click the Sign Up button at the top of the page to sign up for the project email update list
  • Contact Matt Gough at or contact him at 503-823-5352