Updated December 4, 2018

City of Portland Environmental Services – your sewer and stormwater utility - is designing a project to repair nearly 260 feet of 130-year-old public sewer pipe under NW Northrup St between NW 22nd and NW 21st Ave. Heavy tree roots have grown into the pipe and are clogging and damaging the pipe, posing significant risks to the sewer line and the street car tracks running above it should the line fail.

Environmental Services will repair the existing sewer main and laterals using mainly a trenchless construction method. This sewer improvement will reduce the possibility of costly breaks, sink holes and sewage releases to homes, businesses and streets.

Surveying beginning soon

In the coming weeks, survey crews will be in the neighborhood to take topographical measurements and locate and mark underground utilities by painting stripes on streets and sidewalks or placing colored flags in landscaped areas. Each color indicates what is buried below. Blue for water, yellow for natural gas, green for sewer, red for electrical, etc.

For More Information

We are working in close coordination with Good Samaritan Hospital to ensure that operations are not disrupted. Contact Ning Jiang at Environmental Services at 503-823-6006 or Ning.Jiang@portlandoregon.gov if you have questions or concerns, such as maintaining driveway access, business operations, medical deliveries, etc. during construction.

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