Alki Pump Station 38 Improvements Project

Photo of Alki beach
Alki Beach

Project Description

Improving Service Reliability in Your Neighborhood

SPU operates a pump station in north end of Alki Beach Park, which helps to move drainage and wastewater from the surrounding area to the treatment plant. This pump station, known as Pump Station 38, has required significant maintenance and is in need of improvements. In addition, Pump Station (PS) 38 has experienced a significant increase in flows over recent years which cause the air compressors to run more frequently and for longer periods.

For this project, SPU will convert current pump station from an airlift type station to a more standard pump station. This conversion will reduce risk of failure, improve system reliability and performance, and reduce maintenance requirements and costs.

In addition to the improvements in and around the pump station, SPU is working with an artist to complete an art installation at the area around the pump station.

Learn more about the proposed concept for the art installation and the City of Seattle's Public Art Program.  


Pump Station 38 is located in West Seattle's Alki Beach Park near 1411 Alki Ave SW.

What's Happening Now?

Currently, SPU is in the process of designing necessary improvements to the below-ground pump station. In addition, the artist is further developing the concept for the art installation based on input from the community and in coordination with SPU.

Please review the Project Overview to learn more about this pump station improvement project and check out a video on the Proposed Art Installation.

You can also sign up for the project email list to receive project updates.

Community Benefits

  • Increase flow capacity of Pump Station 38
  • Reduce the risk of station failure
  • Ensure the pump station is compliant with existing codes
  • Make the station safer for maintenance crews
  • Install a new public art piece

Anticipated Impacts

  • Construction noise, dirt, dust, and vibration
  • Slowed vehicle traffic
  • Equipment, signage, and materials will be staged in or near the work area
  • Partial road closure and parking restrictions near the work area
  • Access restrictions to the walking and biking path along Alki Beach Park

Community Engagement

No meetings are scheduled at this time. We encourage you to sign up for the project email list to receive up-to-date information throughout design and construction.


Early 2020

  • Perform design work for this pump station conversion project
  • Bring the artist onboard
  • Continue design work
  • Engage the community with the project and artist concept

Late 2020

  • Finalize pump station design and
  • Continue updating community on project and artist concept


  • Pre-construction outreach to community
  • Construction is scheduled to occur
  • SPU to continue providing construction updates to community.

*Tentative schedule as of June 2020. 

Public Art

Seattle Public Utilities, in coordination with the City of Seattle Office of Arts & Culture (ARTS) is working with an artist to create an art installation as part of this project. View video overview of the art concept.

Artist, Sarah Thompson Moore, developed this proposed artwork for the Seattle Public Utilities Alki Pump Station 38 Improvement Project. The artwork seeks to create an engaging and thoughtful space in which visitors can participate in the richly layered story of this well-loved site.

Photo of Alki beach with proposed art rendered over it
Alki Beach with proposed artwork rendering

Inspired by a topographical map of Seattle printed in 1894, the proposed design calls to mind patterns in nature such as; the rippling of water, growth rings in a tree, shellfish, and even fingerprints. The artwork is intended to become an inviting destination for trail-goers to explore themes of connection to place, history, nature and human influence; specific to Alki Beach.

Rendered map of Alki beach shoreline
Alki Beach topographical rendered map example

The design will interact with the natural environment by using iridescent and light refractive materials. The interplay between the colors and patterns of the artwork and the elements of nature will make each visit a unique experience. Drawing visitors to the site, the artwork creates awareness about how the City cares for its water and an opportunity for the community to look into the hidden work taking place below their feet.

Photo of Alki beach with closer view of proposed art rendered over it
Alki Beach with proposed artwork rendering, closer view

The utility boxes have the potential to extend the design while sharing the natural history and present-day use of the site through the artwork.