The existing sewer pipes are in very poor condition and at risk of failure. This project will feature six primary improvements in two phases:
Phase One - N Delaware/Madrona Park:
- Pipe replacement southeast of Adidas from N Delaware in Madrona Park.
- Pipe repair along N Delaware next to Adidas, south of Alberta.
Phase Two - N Going/Greeley/Humboldt:
- Pipe abandonment along the Madrona Park bluff using grout to fill the pipe.
- New pipe installation in N Greeley using open trench excavation.
- Pipe repair in N Going between N Greeley and N Concord, using a trenchless method of repair.
- Pipe replacement along N Humboldt St from Adidas/Madrona Park moving east (160 ft) using a trenchless method.
Project Area
The map below illustrates the project area where sewer repairs will take place. This project is in the Overlook Neighborhood and is along N Going Street, N Greeley Avenue, N Humboldt Street, and N Delaware Street and Madrona Park in the Overlook Neighborhood.
Design and Schedule Updates:
Phase One – N Delaware/Madrona Park
The portion of the project along N Delaware south of N Alberta Street and in Madrona Park is working with a contractor to confirm the method of construction and to deliver a schedule of the work. More information will be provided as soon as we know more. Work is tentatively scheduled to begin mid-summer 2025 and may take up to a month to complete.
Phase Two – N Going/Greeley/ Humboldt
The project team has made some changes that will reduce construction effects for neighbors living on N Humboldt Street. Upon closer inspection, the pipe is in better shape than expected. Environmental Services will use a trenchless method to repair a short section of pipe (about 160 feet) at the west end of Humboldt near Madrona Park instead of open trench construction between Madrona Park and Gay Avenue.
Work on N Greeley Avenue and N Going Street will take place at night. Environmental Services will pursue a noise permit and do additional outreach before night work begins. Phase Two construction is not anticipated to begin until fall of 2026 and may take a year and a half to complete the entire project.
Learn more at the April 14 Overlook Neighborhood Association meeting
We’ll be sharing more information about the project design, the phases, and schedules at the April 14 Overlook Neighborhood Association Meeting.
What: Overlook Neighborhood Association monthly meeting.
When: April 14, 2025 from 6:30‐7:30 pm
Where: Neighbors can attend in‐person at The Stacks Coffeehouse (1831 NE Killingsworth Street) or virtually.
We Want to Hear from You
Please let us know if you have a concern or question about the project. Be sure to include your name, property address, and project name (N Going and Greeley Sewer Project) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also, please write “N Going and Greeley” in the subject line of your email.
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.
Sign Up for Updates
Sign up for periodic email or text message updates for the N Going and Greeley Sewer Project through our free GovDelivery subscription service. These updates are the best way to stay informed about what’s happening and what to expect. You can also sign up for bulletins on other projects and topics.
Please Take the Business Survey
If you have a business within the project area, please complete this questionnaire so we can learn more about your business and what needs you may have during construction.
This project will help protect the health of the Willamette River Watershed.