Notice of Action Taken
Notice of Action Taken
Notice of Action Taken
Date of Issuance: January 7, 2026
Action Deadline: Any action to set aside, enjoin, review, or otherwise challenge such action on the grounds of non-compliance with the provisions of chapter 43.21C RCW (State Environmental Policy Act) shall be commenced on or before 4:30 p.m. on February 4, 2026.
Description of Agency Action: The King County Department of Natural Resources and Parks decided to proceed with the Soos Creek Trail Phase 5A Extension following this Notice of Action Taken. King County Department of Natural Resources and Parks will obtain the required permits and proceed with this project.
Description of Proposal: The Soos Creek Trail Phase 5A Extension Project (Project) proposes to construct a recreational shared-use trail to extend the existing Soos Creek Trail system, as well as a new sidewalk. The proposed trail length and sidewalk length are approximately 2,400 feet and 250 feet, respectively. Construction activities will include land clearing, tree removal, earthwork excavation and imported fill, asphalt concrete paving, concrete boardwalk, structural retaining wall installation, stormwater and drainage improvements, and construction of other trail amenities including critical areas mitigation planting. The project will implement the mitigation sequencing outlined in RMC 4-3-050L(b) and KCC 21A.24.125(A). Construction will result in minor unavoidable temporary and permanent impacts to wetlands and wetland/stream buffer which will be offset through purchase of appropriate credits from the King County Mitigation Reserves Program.
Location of Proposal: City of Renton and Unincorporated King County, near SE 192nd Street and 124th Avenue SE. Section 33, Township 23 North, Range 5 East, Willamette Meridian.
Type of Environmental Review under the State Environmental Policy Act (SEPA): The King County Department of Natural Resource and Parks is the SEPA lead agency for the proposal and reviewed project information, prepared a SEPA Environmental Checklist, and determined that the project does not have probable significant adverse impacts on the environment, which resulted in issuance of a Determination of Non-significance on September 30, 2025 with a 14-day comment period that ended on October 14, 2025. A SEPA environmental impact statement (EIS) is not required under Revised Code of Washington (RCW) 43.21C.030(2)(c).
Document Availability: This information is available to the public on request (for a nominal photocopying fee). It is also available on the King County website at: http://www.king county.gov/parks/publicnotices
Name of Agency, proponent or applicant giving notice: King County Department of Natural Resources and Parks
Contact Person:
Tom Early, Capital Project Manager
206-477-7372 (SEPA)
KCParks.SEPA@kingcounty.gov
Responsible Official: Warren Jimenez, Division Director, Parks and Recreation Division
Notice of Action Taken
Date of Issuance: January 7, 2026
Action Deadline: Any action to set aside, enjoin, review, or otherwise challenge such action on the grounds of non-compliance with the provisions of chapter 43.21C RCW (State Environmental Policy Act) shall be commenced on or before 4:30 p.m. on February 4, 2026.
Description of Agency Action: The King County Department of Natural Resources and Parks decided to proceed with the Soos Creek Trail Phase 5A Extension following this Notice of Action Taken. King County Department of Natural Resources and Parks will obtain the required permits and proceed with this project.
Description of Proposal: The Soos Creek Trail Phase 5A Extension Project (Project) proposes to construct a recreational shared-use trail to extend the existing Soos Creek Trail system, as well as a new sidewalk. The proposed trail length and sidewalk length are approximately 2,400 feet and 250 feet, respectively. Construction activities will include land clearing, tree removal, earthwork excavation and imported fill, asphalt concrete paving, concrete boardwalk, structural retaining wall installation, stormwater and drainage improvements, and construction of other trail amenities including critical areas mitigation planting. The project will implement the mitigation sequencing outlined in RMC 4-3-050L(b) and KCC 21A.24.125(A). Construction will result in minor unavoidable temporary and permanent impacts to wetlands and wetland/stream buffer which will be offset through purchase of appropriate credits from the King County Mitigation Reserves Program.
Location of Proposal: City of Renton and Unincorporated King County, near SE 192nd Street and 124th Avenue SE. Section 33, Township 23 North, Range 5 East, Willamette Meridian.
Type of Environmental Review under the State Environmental Policy Act (SEPA): The King County Department of Natural Resource and Parks is the SEPA lead agency for the proposal and reviewed project information, prepared a SEPA Environmental Checklist, and determined that the project does not have probable significant adverse impacts on the environment, which resulted in issuance of a Determination of Non-significance on September 30, 2025 with a 14-day comment period that ended on October 14, 2025. A SEPA environmental impact statement (EIS) is not required under Revised Code of Washington (RCW) 43.21C.030(2)(c).
Document Availability: This information is available to the public on request (for a nominal photocopying fee). It is also available on the King County website at: http://www.king county.gov/parks/publicnotices
Name of Agency, proponent or applicant giving notice: King County Department of Natural Resources and Parks
Contact Person:
Tom Early, Capital Project Manager
206-477-7372 (SEPA)
KCParks.SEPA@kingcounty.gov
Responsible Official: Warren Jimenez, Division Director, Parks and Recreation Division
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