Project Timeline

Over the past few years, SPU has focused on designing a more natural solution for sediment management in Dead Horse Canyon. This body of work was added to the project scope in 2019 to replace the proposed sediment pond at the corner of Rainier Ave S and 68th Ave S. The shift to a more natural approach requires SPU to expand restoration into Dead Horse Canyon, so the project is now comprised of two design packages – the original Lower Taylor Creek project area, and the Dead Horse Canyon project area. Together these two geographic areas are now collectively called the Taylor Creek Restoration Project.

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The scope and level of development for each project area are different:

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1. Lower Taylor Creek – design includes restoration of the lower creek channel and Lake Washington shoreline, replacement of the Rainier Ave S. culvert, and construction of added floodplain habitat immediately upstream of the culvert. This area is at 90% design.

2. Upper Taylor Creek/Dead Horse Canyon – design includes sediment management and ravine stabilization in Dead Horse Canyon. One design was developed to 60% design, but we are now evaluating new approaches and design options for sediment management in response to community feedback.

 

Despite being at a more advanced stage, further design of the lower project area is on hold pending advancement of a sediment management design for the upper project area that is supported by the property owner (Parks), the community, and regulatory agencies (responsible for project permitting). After community outreach and a decision on the sediment management strategy in the canyon, the project team would move into the design phase for the upper project area, including applying for the appropriate environmental permits. Construction is tentatively expected to begin in 2026 and is dependent upon when the full design is ready to apply for permits.