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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info

Project Details

Environmental Services is designing a project in the Humboldt neighborhood to repair over 17,000 feet of sewer pipes. The project will improve sewer and stormwater infrastructure, increase sewer capacity, and reduce the risks of street flooding and sewage releases to homes, businesses and streets. Environmental Services plans to begin construction in Humboldt, plus a few blocks in Overlook and Arbor Lodge, in fall 2016. Construction will take about a year to complete.

Project Area

The map below shows the general project boundaries and pipe locations proposed for repair or replacement. The current design proposes construction only on the streets indicated with bold highlights on the map. There may be traffic control, construction signage or increased traffic volume and parking on nearby streets.

Humboldt Project Map

Noise Variance

The map above also indicates locations where the project will require some night work. Portland noise code allows construction from 7:00 a.m. to 6:00 p.m. Monday through Saturday. Because some of the work will extend a few hours beyond 6:00 p.m., Portland's Noise Office granted the Humboldt project a noise permit. Homes and businesses near these locations will receive a separate notification before night work takes place. 

What's Happening Now

  • Design is completed and construction will begin in the fall 2016, and continue for about a year.
  • Survey crews will be marking the utility easement along alleys where work will occur. 

Construction Methods

The contractor will use open trench excavation, pipe bursting, and cured-in-place pipe-lining (CIPP) to repair, replace, and install sewer pipe fo this project. Visit the Construction Methods web page at for more information about each method and to view photos.

For More Information

The city will update neighbors at regular meetings of the Humboldt Neighborhood Association and smaller informational gatherings in the neighborhood. For information on location, check the association's website at

We will also send periodic email updates to alert you to construction schedules, traffic controls, parking impacts and other impacts throughout the design and construction of this sewer repair project. To be added to the project's email update list, email Rhetta Drennan with "Humboldt" in the subject line. If you have any questions or concerns, contact Rhetta at 503-823-6006.

Please let us know as soon as possible if you have concerns such as business operations, disability issues or medical or business deliveries.