1120 SW 5th Avenue, Room 1000, Portland, OR 97204
Environmental Services has completed this phase of a project to repair 100- to 140-year-old public sewer pipes in SW Yamhill and SW Morrison Streets in downtown Portland that were in deteriorating condition. The repairs will protect the public and the environment by reducing the possibility of sewage releases to buildings and streets.
Environmental Services set out to do a large-scale sewer repair project in a short amount of time. TriMet’s MAX Improvement Project gave us the rare chance to work on underground sewer pipes that cannot be accessed while overhead high-voltage power lines are live and light rail trains are running.
In the three weeks that light rail was out of service, the city’s contractor was able to accomplish the following repairs and address immediate needs to extend the life span of sewer pipes in the project area:
Environmental Services appreciates the cooperation and patience shown by downtown businesses, residents, and the visiting public during this process. In addition, the project team gathered valuable technical information in talking with property managers within the project area, and this information will be used to inform future work in the downtown core.
Minor project-related repairs, such as sidewalk restoration, brick restoration in intersections, and project area cleanup are continuing. With the Rose Festival Moratorium restricting downtown construction through June 12, some minor repairs will be completed after the Moratorium.
Nine areas in this project were identified as high risk, where crews were not able to safely bypass sewage flows from adjacent buildings to repair the mainline public sewer pipe within the three-week construction window. Environmental Services will work with contractors to determine how to complete those repairs in the future.
While the majority of the project was able to be accomplished in the short time period, some future work will be necessary to ensure high quality infrastructure for our community, including:
Some of this work may occur within the next year. Work that can wait and can benefit from the lessons learned in this project may be included in longer term planning to reduce the impacts on the surrounding community.
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, property address and project name (SW Yamhill-Morrison) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also, please write "SW Yamhill-Morrison" in the subject line of your email.
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