In 2019, Environmental Services was originally slated to repair the sewer pipe within the undeveloped right-of-way between SW College and SW Upper Hall streets but had complications. The project went back to the drawing board to have further investigations to try and figure out the best avenue to repair the sewer in such a complicated area. Design is now complete and will begin construction November 3.
Construction is anticipated to be complete in January 2024.
What's Happening Now
All work is weather-dependent and subject to change.
Week of December 11 and 18:
The following construction activities will occur during work hours between 7 a.m. and 6 p.m., Monday through Friday.
- Continue CIPP on sewer mainline.
- CIPP sewer connection to private property.
- Install coconut matting/erosion control to wall.
NO WORK SCHEDULED FOR DECEMBER 25, 2023, TO JANUARY 1, 2024.
Week of January 2:
- Clean up and post-videotape sewer lines.
Method of Construction
Crews will repair the sewer pipes using a trenchless method called cured-in-place-pipe lining (CIPP). CIPP involves inserting a flexible liner inside the old pipe, inflating the liner, and exposing it to heat or ultraviolet light to “cure” and harden the liner inside the pipe.
Although sewer, water, and other utilities are expected to remain in service during construction, you may be requested to limit water usage during some stages of construction. We will notify residents in advance if they need to limit water use.
To learn more about this sewer construction method, go to portland.gov/bes/cipp.
What to Expect During Construction
A brief guide on what you can expect during construction projects conducted by Environmental Services and their contractors can be found at portland.gov/bes/constructionimpacts.
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This project will help protect the health of the Willamette River Watershed.