Willow Creek Fish Passage Restoration Project
Updated: March 14, 2025
What's Happening Now?
Willow Creek Fish Passage Restoration Project Ribbon Cutting Celebration!
The Seattle Department of Transportation (SDOT) is excited to invite you to the grand opening celebration for the Willow Creek Fish Passage Restoration Project, Thursday, March 27! We’ll have a couple speakers from SDOT and Parks share words about the project. We’ll also have light refreshments and some giveaways. Please join the celebration!
WHAT Celebrate the grand opening of the Willow Creek Fish Passage Restoration Project
WHEN Thursday, March 27, from 4PM-5PM
WHERE 2510 NE 100th St, Seattle, WA 98125
WHO You and all your neighbors. Please share this event widely with your neighbors and networks.
Click here to learn more about the celebration.
Thank you to all the neighbors for your patience during construction!
Project Background
In summer of 2021, The Seattle Department of Transportation (SDOT) completed construction of the Northgate Pedestrian and Bicycle Bridge over I-5 in the Northgate neighborhood of North Seattle. The Bridge runs over and through the North Watercourse, which is a tributary to the South Branch of Thornton Creek. The Bridge project has impacted the North Watercourse by decreasing habitat and retaining the barrier to fish passage.
Upon completion of this project, we chose to mitigate for these impacts off-site at Willow Creek, which is located at NE 100th Street near Lake City Way. The proposed changes consist of re-routing the creek and removing two culverts, one of which is currently a partial blockage to fish passage.
Project Maps
Pictured: Existing Conditions at NE 100th St
Pictured: The changes proposed to Willow Creek and the west end of NE 100th St
Project Library
- Construction Notice (April 2024)
- SEPA DNS (April 2023)
- SEPA Environmental Checklist (April 2023)
- Notice of Section 4(f) de minimis Finding (April 2023)
- 4(f) Mailer (April 2023)
- Construction Notice (November 2021)