Skip to Main Content View Text-Only

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

Slabtown Sewer Replacement Project

Environmental Services is designing a sewer replacement project in the Slabtown district in northwest Portland (see map). The project will increase sewer system capacity, strengthen the overall system, and protect water quality and the environment.

Slabtown Sewer Project Map

Project Scope and Schedule

This project will replace and upsize the public sewers in streets, repair laterals that connect properties to the sewer system, replace stormwater inlets and inlet pipes, and repair several manholes throughout the project area. Construction is expected to begin fall 2017. We will continue to be in touch with more specific information as the project evolves.

We want to hear from you

We could like to know about the access needs at homes and businesses in the area, as well as any parking concerns, delivery schedules or other information you would like to share. Please feel free to fill out our online business survey or contact us directly (information below).

Utility Locates

Intermittently, city crews will conduct a simple excavation process to drill holes and remove debris from proposed construction areas in order to locate utilities and determine other underground conditions. What the engineers learn from this process will help them determine construction locations and methods.

What to Expect

Utility locates are scheduled intermittently. Work crews will drill eight-inch wide holes in street pavement and unpaved public right-of-way areas at five locations (see map). Crews will fill the holes immediately after the drilling is completed. There may be brief periods of noise, dust and mild vibration during drilling.

Each location should not take more than a day. There will be temporary lane closures as well as on-street parking removed within the project area. There will be flaggers to provide access to through traffic, but expect that there may be some delays.

Keep in mind that schedules are always subject to changes due to weather, equipment or other issues.

For More Information

With questions, comments or concerns about business operations, medical issues or deliveries, please contact Ashley Tjaden at or 503-823-5281. To sign up for periodic email updates, email Ashley with “Slabtown” in the subject line.

Slabtown Sewer Project Business Survey

Environmental Services is seeking feedback from businesses in the project area