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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

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Slabtown Sewer Replacement Project

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Updated April 25, 2018

Environmental Services began construction in March 2018 to repair 8,400 feet (more than one and a half miles) of sewer main in streets, some of which are more than 115 years old and deteriorating due to age. Our crews will repair service connections that connect properties to the sewer system, replace stormwater inlets and inlet pipes, and repair or replace more than 46 manholes throughout the project area. Taking these actions now will help protect the public and the environment by reducing the possibility of costly breaks, leaks, blockages and sewage releases to homes, businesses and streets.

project map with night work indicated

Construction Schedule 

Construction started in early March to install waterlines on NW Savier and 15th, NW 14th and Quimby, and NW Pettygrove and 17th. The water work is now complete and crews have begun the sewer work. The entire project will take about a year to complete.

April 23 – May 11

  • Our crews are constructing the main sewer line on NW 14th and Savier, and on NW Savier between 14th and 15th avenues.

Construction Methods

Open trench construction will be used for this project. Open trench construction is the traditional and most common method of sewer construction and consists of excavating the existing pipe, replacing or repairing it, and the refilling the trench. For more details and photos about this and other construction methods, visit

To learn what to expect during construction, visit

We want to hear from you

We would 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).

For More Information

With questions, comments or concerns about business operations, medical issues or deliveries, please contact Debbie Caselton at or 503-823-2831. To sign up for periodic email updates, click the Sign Up! button or email Debbie with “Slabtown” in the subject line.

Slabtown Sewer Project Business Survey

Environmental Services is seeking feedback from businesses in the project area