Sunnyside South Green Street and Sewer Project

Sewer and Stormwater
Environmental Services is constructing a project that will install and upsize public sewer pipes, as well as construct green street planters, in the Sunnyside neighborhood. These improvements will increase sewer capacity, relieve sewer backups, and reduce street flooding.
Photo shows curb marker saying: Green street managing stormwater with maintenance hotline 503-823-1700.
Construction is mostly complete except some ADA ramps and paving.

Project Area

The map below illustrates where this project is constructing sewer improvements and green street planters. This map also shows what methods of construction are proposed as well as where all of the new ADA ramps are being built.

Simplified map of Sunnyside South Green Street and Sewer Project with methods of construction, locations of ADA ramps, and green street planters.

General Schedule 

This project will be constructed along with the Ladd’s Addition project nearby. Construction has begun in the Sunnyside neighborhood. Construction of both projects is expected to be completed in the spring of 2024. Learn more about the Ladd’s Addition Project.

What's Happening Now

All work is weather-dependent and subject to change.

Week of May 27 (No work on Monday due to Holiday):

Construction will occur during work hours between 7 a.m. and 6 p.m., Monday through Friday at the following locations: 

  • Paving at the following locations:
    • SE Cesar Chavez Blvd and SE Salmon St (east side).
    • SE 30th Ave and SE Taylor St.
    • SE Cesar Chavez Blvd and SE Madison St (west side)
    • SE 33rd Ave and SE Madison St.
  • Crews are finishing up their list of items to complete the project in the entire project area.

What to Expect During Construction

A brief guide on what you can expect during construction projects conducted by Environmental Services and their contractors can be found at Construction Impacts.

We Want to Hear from You

Please let us know if you have any questions regarding the sewer pipes or green street planters. Be sure to include your name, property address, and project name (Sunnyside South) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also, please write “Sunnyside South” in the subject line of your email.

Construction Methods

The city plans to use two different methods to construct this project:

  • Open trench excavation is the most traditional and most common method of sewer construction. This method consists of excavating down to and exposing the existing pipe (if there is one), so that it can be installed, repaired, or replaced. The trench is then backfilled and temporarily paved until the pipe is quality control tested.
  • Cured-in-Place Pipe Lining (CIPP) is a trenchless method of sewer construction. It requires little or no digging and significantly less time to complete than other sewer repair methods. CIPP involves inserting a flexible liner inside the existing pipe, inflating the liner, and exposing it to heat or ultraviolet light to “cure,” or harden the liner inside the pipe.

Learn more about construction methods.

Project Background

The purpose of this project is to relieve basement sewer backup risk, reduce street flooding, and overall risk to the large sewer trunk in the project area. To that end, this project will upsize or repair portions of the public sewer main line to increase its capacity to handle combined sewer and stormwater. It will also build green street planters that help slow, filter, and cleanse stormwater from the streets.   

The project is designed to accomplish the following sewer and stormwater improvements:  

  • Replace or repair 9,000 feet of public sewer mainline pipe, ranging in size from 8 inches to 21 inches in diameter. 
  • Construct or replace 228 sewer service connections (laterals) that connect private sewer lines to the public sewer in the street; this will involve 3,700 feet of lateral sewer pipe.  
  • Install almost 800 feet of pipe for storm drains. 
  • Install or replace 137 storm drains. 
  • Construct 25 green street planters. 
  • Construct or replace 137 maintenance holes.
  • Construct 44 ADA ramps.

Sign Up for Updates

Sign up for weekly email or text message updates for the Sunnyside South Green Street and 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. 

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