1120 SW 5th Avenue, Room 1000, Portland, OR 97204
Updated March 15, 2017
Environmental Services has completed design and is preparing for construction to repair about 360 feet of concrete public sewer pipes in N Schmeer Road at the intersection and west of N Vancouver Avenue. Engineers have identified potential schedule restrictions, determined necessary traffic controls, and selected appropriate construction methods for this project.
Construction is anticipated to begin in June 2017 and last about three months. In general, work will occur from 7:00 a.m. to 6:00 p.m. Monday through Friday, and the same hours on Saturday as needed.
If the work zone requires flaggers to control traffic, then available hours will be from 8:00 a.m. to 4:00 p.m. Monday through Saturday. This will reduce traffic delays during peak commute hours.
Access to driveways and properties will be provided at all times, although there may be delays. The goal will be to maintain one traffic lane in each direction at all times on Vancouver Way, Schmeer Road, and Vancouver Avenue – and to maintain all turn movements at the intersection of Schmeer Road and Vancouver Avenue. If the contractor can do that, then available work hours with lane restrictions will be 7:00 a.m. to 6:00 p.m., Monday through Saturday.
If it is necessary for the city's contractor to employ flaggers to control traffic, then additional lane restrictions may be required. Available work hours may be shortened from 8:00 a.m. to 4:00 p.m., Monday through Saturday. When flaggers are present, they will assist pedestrians at all open crosswalks at the intersection of Schmeer Road and Vancouver Avenue.
Sanitary sewage flowing through the manhole and pipes has corroded the concrete. This project will employ a combination of open trench and trenchless construction methods to make necessary repairs. Using open trench excavation, crews will replace the manhole and install new equipment to minimize corrosion. This is the traditional and most common method of sewer construction. It consists of excavating down to and exposing the existing pipe and manhole, replacing it, then backfilling the trench.
To repair the sewer pipes, the city will employ a method called cured-in-place-pipe lining (CIPP). Work crews access the sewer from manholes to insert a flexible liner inside the old pipe. Hot water or steam inflates and cures the liner, which gradually hardens to form a rigid, smooth surface that seals cracks and restores the pipe to near-new condition.
People who live and work near a CIPP repair project can sometimes smell a chemical odor during the pipe-lining work. The odor is from the chemical styrene, which is in the resin liner installed inside the pipe. The odor dissipates quickly once the installation process is complete. The amount of airborne styrene produced by the lining process is not expected to cause health issues for workers or the public.
To learn more and view photos about sewer construction methods, click here.
Prior to any construction, project staff will work closely with adjacent businesses and residents to discuss impacts and identify strategies to minimize disruptions to those who live, work or travel in the area.
If you would like more information about the project or have questions and concerns you’d like to discuss, please call or email:
Please include your name, business name, property address, and project name (N Schmeer and Vancouver) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also, please write "N Schmeer" in the subject line of your email. Click SIGN UP! to sign up for periodic email updates.
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