Duwamish Substation: South Seattle (Puget Sound Steward Led)

The Duwamish Substation is one of many stations distributing energy to homes around the greater Seattle area.  The land and water surrounding the substation provide critical food and shelter for a variety of animals living there.  One animal that supports many of the other animals in our Puget Sound ecosystem are salmon. Salmon use the area to slowly transition between freshwater and saltwater.  It’s is important that the nearby riverbank be lush with healthy native plants because they provide homes for the bugs that salmon like to eat and they filter polluted rainwater that runs off roads, parking lots and roofs.  By removing invasive species and planting natives, we will be providing a more suitable habitat for salmon and the many other animals that live in the area.  Please join us to help restore this habitat.


The Basics

EarthCorps supplies gloves, tools, water and snack bars. We will teach you everything you need to know about tool use, safety, forest health, and the importance of the work you will be doing. No experience necessary, just come ready to learn something new! Be sure to sign in at registration when you arrive.

This video may give you a better idea of what to expect.

For your safety and comfort please bring:

  • Clothing that can get dirty (because it will!)
  • Long pants and long sleeves (helps protect against prickly plants)
  • Sturdy shoes that can handle some mud (closed toed shoes are required such as work boots, hiking boots, rubber boots, etc.NO sandals, flats or heels)
  • Rain gear and warm layers -OR- sun protection (check the weather!)
  • Sack lunch and snacks (to refuel)
  • Full water bottle (we will have a jug on-site for re-fills)
  • Travel mug for tea/coffee
  • If you have a favorite pair of gloves, feel free to bring them (otherwise we're happy to provide a pair)
The event will happen rain or shine!

What will volunteers be doing at the event?

While the exact tasks can vary, our projects focus on improving the forests and parks in our local cities. Healthy and thriving forests are vital to our community because they absorb and filter rain water, produce clean oxygen, provide living spaces for wildlife, and create a place for people to connect with the outdoors.
In order to help create healthy forests, the work can include:
  • Removing aggressive weeds (like English Ivy or Himalayan Blackberry)
  • Maintaining areas where these weeds have been removed (weeding or spreading mulch)
  • Planting trees and shrubs during the rainy season (often ~Oct.-Feb.)


If you are coming as a group, the group leaders are expected to have an active role in our events. After registering your group, please get in touch with volunteer@earthcorps.org to make sure everything is in order. On the day of the event, make yourself known to the staff (in bright yellow vests) and arrive early in order to help guide your group members.

Youth Policy

Youth under the age of 14 must be accompanied by a parent, guardian, or responsible adult. All volunteers between the ages of 14 and 17 that are not with a parent or guardian must bring a filled out Youth Waiver the day of the event.
Youth and school groups are welcome to attend; leaders should contact the Volunteer Team to take care of all necessary preparations. 


Driving Directions to Seattle City Light - Duwamish Substation on the Duwamish River
W Marginal Place S, Seattle, WA
From the North on I5:
  • Heading South on I 5, at exit 158, take ramp right for Boeing Access Rd toward E Marginal Way.
  • Turn right onto S Boeing Access Rd.
  • Turn right onto E Marginal Way S.
  • Turn left onto S 102nd St. and go over the bridge through Boeing Company parking lots.
  • Turn right onto West Marginal Pl S.
  • Just before the City Light power substation, look for a small pull out on the right in front of a tall metal fence and park there.  Look for EarthCorps event signs.
From the South:
  • From I-5 Northbound take exit 156 and merge onto Hwy 599 towards Tukwila/W. Marginal Way.  Hwy 599 turns into Hwy 99. 
  • Take the W. Marginal Place S exit and turn left onto W. Marginal Pl. S.
  • Just before the City Light power substation, look for a small pull out on the right in front of a tall metal fence and park there.  Look for EarthCorps event signs.

No upcoming volunteer events for this location