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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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NW Westover Road Sewer Repairs

COVID-19

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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 August 4,  2020

Environmental Services continues to provide public sewer improvements to the 100-year-old public sewer pipes in NW Westover Road, NW Summit Avenue, and NW Lovejoy Street. Work includes repairing and replacing public sewer pipes and constructing new maintenance access holes and service laterals that connect private properties to the public sewer.

Location

Sewer repairs are being designed and constructed in NW Westover Road, NW Summit Avenue, and NW Lovejoy Street.

Pipe repair locations

 

Timeline of Sewer Repairs

Below is the timeline of sewer repairs in the neighborhood. 

Urgent Pipe Repair Between NW Westover and NW Summit – Completed January 2020

Earlier this year, in January 2020, crews completed an urgent public sewer repair that was located in private property between NW Westover Road and NW Summit Avenue. 

Small Pipe Repair in NW Westover – Construction in August 2020

In August of 2020, crews will repair a small, 50-foot section of sewer pipe located in NW Westover Road. It is expected to take less than a week to complete.

Pipe Replacement in NW Westover, NW Summit, and NW Lovejoy – Construction in January–December 2021

Beginning in January of 2021, crews will replace and upsize 1,400 feet of sewer pipes located in NW Westover Road, NW Summit Avenue, and NW Lovejoy Street. It will take up to a year to complete. 

This work will help reduce basement sewer backup risk at six properties, reduce surface flooding risk in the area and extend the life of the public sewer system serving the neighborhood.

Survey and Soil Sampling in July

Utility locate markings

Beginning in early July, crews will be in the neighborhood to mark utility locations and then drill holes in street pavement to collect soil, water, and pavement samples at various locations. The information they gather will help them understand underground conditions and determine appropriate construction methods to complete the necessary sewer improvements.

You can expect the following activities and impacts during the soil sampling work:

  • Crews expect to complete soil sampling in one day, beginning at 8:00 a.m. and continuing for four to six hours.
  • The soil sampling holes will be a few inches in diameter and crews will fill them immediately after they complete the drilling.
  • To establish a safe work zone, this work may require temporary traffic controls, restricted travel lanes, and on-street parking removal.
  • This work may cause brief periods of noise, dust, and mild vibration.

During the survey work, crews will paint markings on street pavement, curbs, and sidewalks or place colored flags in the ground to identify underground utilities. See the graphic to the right for what each color means.

Construction Methods

To complete sewer repairs in NW Westover Road, NW Summit Avenue, and NW Lovejoy Street, crews will use a combination of open trench and trenchless construction methods.

Small Pipe Repair in NW Westover – Construction in August 2020

To repair the small, 50-foot sewer pipe in NW Westover Road, crews will use the trenchless method called Cured-in-Place-Pipe Lining (CIPP). This method requires little or no digging and takes significantly less time to complete than other sewer repair methods.

Crews access the sewer pipe using existing maintenance access holes. They insert a flexible liner inside the old pipe and inflate it against the inside wall of the old pipe. They expose the liner to steam, heat, or ultraviolet light 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. 

To learn more about the CIPP method, visit www.portlandoregon.gov/bes/pipelining.

Pipe Replacement in NW Westover, NW Summit, and NW Lovejoy – Construction in January–December 2021

To replace and upsize the 1,400 feet of sewer pipes in NW Westover Road, NW Summit Avenue, and NW Lovejoy Street (currently scheduled for January–December 2021), crews will use the Open Trench Excavation method. This method requires digging a trench to expose the deteriorated pipes and replace them with new and larger pipes. 

After replacing the sewer pipes, crews will backfill the trenches and apply temporary asphalt patches. After all work has passed inspection, crews will return to restore the patched trenches with final paving. Crews will grind down the temporary asphalt patches to remove any cracks, ruts, and imperfections. Then they will place a two-inch layer of asphalt paving on top of the surface to fill any holes and level it off. The broad trenches where crews had to dig in the street will have a fresh new asphalt surface. The rest of the street, where digging dig not occur during construction, will remain as it was before construction began.

To learn more about the Open Trench method, visit www.portlandoregon.gov/bes/opentrench

For More Information

Environmental Services will work directly with the community throughout the course of the project. Community outreach staff will listen to your suggestions and respond to your concerns. We encourage you to sign up now for email updates about the project. Click the SIGN UP button above and select NW Westover Sewer Repairs from the dropdown menu.

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

Ning Jiang
Community Outreach
Phone: 503-823-6006
Email: Ning.Jiang@portlandoregon.gov

If you have a concern or question about the pipe repair near you, please be sure to include your name, property address, and project name (NW Westover) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also let us know if you have concerns such as medical deliveries, medical access needs, and special events on your street that might be affected by construction.