Skip to Main Content View Text-Only

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

More Contact Info

Alder Pump Station

Updated March 17, 2018Button. Click to sign up for email updates

Environmental Services has completed demolition of the Alder Pump Station and micropile drilling as part of the seismic portion of the Alder Pump Station Upgrade Project. Crews have begun forming and casting the concrete pile caps, which will form the new foundation for the pump station about 30 feet below grade.

The city constructed the pump station at SE Water Avenue and SE Alder Street in 1952. This upgrade project will improve reliability, increase pumping capacity, and help prevent sewage releases to protect public health, water quality, and the environment. For details about the improvements to be made, click here.


Construction of upgrades will go through several phases and continue through the summer of 2019. Typical work hours will be 7 a.m. to 6 p.m. Monday through Friday, with construction the same hours on Saturday if needed.

Project map

Construction Progress

The city's contractor is making steady progress on the project:

  • Crews have completed demolition of the pump station both above and below ground.
  • Crews have completed the installation of micropiles for the foundation system to help support the new pump station. 
  • Crews have begun forming and casting the concrete pile caps, which will form the new foundation for the pump station about 30 feet below grade.
  • The bypass pumping system installed last November continues to ensure uninterrupted sewer service throughout the construction of upgrades to the pump station.
  • Combined sewer and stormwater flows are being diverted to other parts of the sewer system. These pipes have the capacity to handle increased flows while the new pump station is under construction.

Anticipated Traffic Controls

Different phases of this project may require different traffic controls as upgrades on the site and frontage improvements in the public right-of-way are completed. The general traffic control plan is as follows:

  • Allow access to private driveways at all times
  • Employ flaggers to direct bicyclists away from the work area but not into the flow of motor vehicle traffic and to direct pedestrians to safe crossings and open sidewalks
  • Establish traffic controls so that traffic queues do not extend into the railroad track zones
  • Maintain a one-way, westbound travel lane on SE Alder Street to SE Water Avenue
  • Maintain two-way traffic on SE Water Avenue
  • Remove on-street parking in the work zone

For More Information

If you would like more information about the project or have questions and concerns you’d like to discuss, please call or email:

Cheryl Kuck
Community Outreach
Phone: 503-823-7898

If you have a concern or question about the work near you, please be sure to include your name, business name, property address, and project name (Alder Pump Station) in your voicemail and email so we can provide you more details about what to expect in front of your property. Also, please write "AlderPS" in the subject line of your email. Click SIGN UP to sign up for periodic email updates, and select Alder Pump Station Upgrade Project from the dropdown menu.

Project Overview

Including the project description, map and schedule

Community Outreach

Check out current and previous communications about the project

Stay Informed

Sign up for email updates and other project notifications