NE 31st Ave and NE Multnomah St Sewer Project

Sewer and Stormwater
Environmental Services has designed a sewer project to upsize public sewer piping in the Kerns neighborhood. The project will protect public health, property, and the environment by increasing the capacity of the public sewer system.
Construction is anticipated to begin April 2023.

On this Page

Project Area

This project will take place at the intersection of NE 31st Ave and NE Multnomah St between NE Sandy Blvd and NE Wasco St. These improvements will reduce the possibility of sewage releases to homes, business, streets, and rivers by increasing the capacity of the sewer system. See map for project boundary details.   

NE 31st and Multnomah Sewer Project Map

Map of the NE 31st Ave and NE Multnomah St Sewer Project Area

General Schedule

Construction is anticipated to begin in April 2023 and will take up to five months to complete. The contractor will notify nearby residents before construction. 

Construction Methods

The City’s contractor will use open trench excavation. Open trench excavation consists of digging down to and exposing the existing pipe, removing the existing pipe or repair a section of it, installing a new pipe or a section of new pipe, backfilling the trench, and apply a temporary asphalt patch.  Permanant trench paving will occur after construction is complete. 

What to Expect Before Construction

Leading up to construction, crews will be in the project area periodically to perform investigative activities including site visits and evaluation, survey, soil sampling, utility locates, pipe cleaning, and inspection.  

Some investigative activities will require restricting parking and/or closing travel lanes. The traveling public should expect minor traffic delays. Information gathered will help determine the repair locations, and how to minimize construction impacts on residents and businesses.  

What to Expect During Construction    

  • Work Hours: Work will occur Monday through Friday between 7:00 a.m. and 6:00 p.m.
  • 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 could 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.

We Want to Hear from You

Environmental Services will inform residents and businesses about project activities and respond to questions and concerns in a timely manner. We encourage you to:

  • Visit this project webpage regularly for updates. 
  • With questions or comments, please contact Matt Gough by email or phone 503-823-5352.
  • If you have a question or concern, please be sure to include your name, property address, and project name (31st and Multnomah) in your voicemail and email so we can provide you more details about what to expect in front of your property.
  • If your basement sewer backs up or your property or street floods, please report it immediately to the City’s Maintenance Operations hotline at 503-823-1700. It is staffed 24/7, all hours and all days.
Business Impact Survey

If you have a business within the project area, please complete this Business Survey so we can learn more about your business and what needs you may have during construction.

Sign Up for Updates

Sign up for periodic email or text message updates for the NE 31st Ave and NE Multnomah St Sewer Project through our free GovDelivery subscription service. These updates are the best way to stay informed about what’s happening and what to expect. You can also sign up for bulletins on other projects and topics.