Most City offices closed Wednesday, June 19, to observe Juneteenth

The City of Portland recognizes Juneteenth as a formal day of remembrance to honor Black American history and the end of slavery in the United States. Learn about Juneteenth.

Sheridan Trunk Sewer Project - Duniway Park

Sewer and Stormwater
Environmental Services is designing a project to repair or replace several hundred feet of aging, large-diameter public sewer pipes in Duniway Park. Having provided over 100 years of service, the pipes require repairs to maintain reliable sewer service and protect public health and the environment.
Construction is currently scheduled to begin July 2025 and will take up to two years to complete.

The project also includes relocating a mainline public sewer pipe from private property south of Sam Jackson Road near Duniway Park. Relocating the pipe will improve sewage flows and increase accessibility for future maintenance.

Project Area

The project is located in Duniway Park and in SW Sam Jackson Park Road just west of Duniway Park.  

Sewer Pipe work locations in Duniway Park

What's Happening Now

Work crews will periodically be in the project area to perform investigative activities. Activities include site visits and evaluation, soil sampling, survey, utility locates, pipe cleaning and inspection. Some investigative activities may require restricting parking and closing travel lanes. 

Information gathered will help determine the repair locations, select construction methods, and minimize construction impacts on residents, park users, and businesses.

Duniway Park Impacts and Restoration – What We’ve Heard from You

Sewer construction will require excavating parts of Duniway Park and the Lilac Garden. Neighbors, park users, and community groups have been asking what this means for the park and the Lilac Garden, in particular.  We are working with Portland Parks & Recreation to develop plans to minimize impacts during construction and restore disturbed areas to their previous condition or better. Once more information is available, we will host a community meeting and share information online about park impacts and draft restoration plans.

We Want to Hear from You

We would like to hear from you about special events, school activities, and community services in your neighborhood you think might be impacted by this project. Also, we want to know if you have any question or concerns related to how this project might impact your use of Duniway Park. Your input will help us minimize the impact to your neighborhood during construction.  Please email your questions, comments, and concerns to Matt Gough or call him at 503-823-5352.

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This project will help protect the health of the Williamette River Watershed.