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SE Stark Trunk Sewer Project

Sewer and Stormwater
Environmental Services is designing a project to repair large-diameter concrete sewer pipes along SE Stark Street between SE 3rd Avenue and the Willamette River. Repairs will increase the sewer’s resiliency, extend its service life for 50 years or more, and help prevent sewage releases.
Design began in January 2021. Construction is expected to begin in May 2022 and take a year to complete.
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This project also includes installing a sewer/stormwater diversion structure that will redirect combined sewer (stormwater and sewage) from the Stark Trunk to the Willamette River during heavy rain events, reducing the likelihood of sewage releases into building basements and streets. 

Project Area

What's Happening Now

Work crews will periodically be in the study area to perform investigative (pre-construction) activities. Activities include site visits and evaluation, survey, utility locates, soil sampling, and geotechnical investigations.

Some investigative activities will require restricting parking and closing travel lanes. The traveling public should expect minor traffic delays. 

Information gathered will help determine the repair locations, construction methods, and how to minimize construction impacts on residents and businesses. 

We Want to Hear from You

Environmental Services will inform residents about project activities and respond to questions and concerns in a timely manner.   

Sewer Emergency: In the event of a sewer backup or basement flooding, call the Maintenance hotline immediately at 503-823-1700. It is staffed all hours and all days, 24/7.  

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Sign up for regular email updates at SE Stark Trunk Sewer Project