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Green to Cedar River Trail
South Interim Trail
Location: 8-mile corridor between SE Kent Kangley Road in Maple Valley and Flaming Geyser State Park, just south of the Black Diamond city limits.
Recent Activity:
Green to Cedars Rivers South Interim Trail Segment A
November 2023 update: King County Parks is issuing a Determination of Non-Significance (DNS) under the State Environmental Policy Act (SEPA) for the Green to Cedars Rivers South Interim Trail Segment A. Comments regarding this DNS will be accepted via email, writing, or telephone until 4:30 pm on December 5, 2023. Please see the DNS for instructions on how to submit comments. The following documents are available related to this proposal:
This interim trail will be approximately 2 miles long and travel from SE Kent Kangley Road to the Black Diamond Open Space (BDOS) trailhead parking lot. It will include a pedestrian bridge crossing at the BNSF railroad and four safe trail crossings at SE 271st Place, SE 276th Street, SE 280th Street, and 288th Ave South.
Construction will begin once permits and a construction maintenance agreement with the railroad are acquired. This project is currently anticipated to advertise for construction in Spring 2024. View the interim trail Map.
Ravensdale Fish Barrier Removal
Project title: SR 169 - Ravensdale Creek - Fish Passage
Location: SR 169 in Maple Valley, Black Diamond Open Space, and the Green to Cedar Rivers Trail south of SE 288th Street.
Duration: Summer 2021 – Fall 2022
Reason: Fish passage improvement
King County Parks is partnering with WSDOT to improve fish passage within Ravensdale Creek. This project will remove two culverts within the Black Diamond Open Space (BDOS) and one culvert under the SR 169 highway. The culvert east of the Green to Cedar Rivers Trail will be removed and the creek will be restored. The culvert under the trail will be removed and replaced with a pedestrian trail bridge. The culvert under SR 169 will be removed and replaced with a new bridge. The old road bed through BDOS (which served as the main road prior to SR 169 construction) will be temporarily utilized for a vehicular traffic bypass while the SR 169 bridge is being reconstructed. This bypass will provide a direct route through the area in lieu of a lengthy detour and it will be restored with native plantings after the SR 169 bridge is constructed. WSDOT is managing the design, permitting, and construction of the project.
Recent activity:
The contractor will complete the majority of the work on the Ravensdale fish barrier removal project at SR 169 and the Black Diamond Open Space by the end of September 2022. The new bridge at SR 169 was completed early this year. More recently, a new pedestrian bridge along the Green to Cedar River Trail was installed after the existing culvert within the railroad embankment was removed. In total, three fish barriers (culverts) were removed and the stream channel was improved for fish habitat. Water is once again flowing within Ravensdale Creek as the contractor preps the project site for landscape planting and restoration, which will begin in October. This project was completed in December 2022.
Other:
King County received a grant from the state of Washington’s Recreation and Conservation Office (RCO) through the Brian Abbott Fish Barrier Removal Board for the King County portion (the two culverts in BDOS) of this project.
North Segment
Location:
3 miles beginning at the Cedar River Trail to SE Kent Kangley Road
Project update:
King County Parks is moving forward with this important trail project that will upgrade the Green to Cedar Rivers Trail to Regional Trail standards, including a 12-foot wide paved trail. This upgrade will make the trail accessible for all ages and abilities while connecting communities, inspiring healthy living and supporting a sustainable future. The north segment of the trail is currently a 10-foot wide gravel trail that is accompanied by a narrower side trail in some sections of the corridor.
Recent Activity
SEPA was completed in summer 2018. The timeline for final design and construction of the north segment is not yet determined, pending funding and permitting.
Design:
Technical Reports:
Check back here to review all technical reports for this segment once available.
Public Outreach:
Neighborhood Meeting Summaries:
- Stakeholder Meeting 1 (July 2015)
- Community Meeting 1 (Jan 2017)
- King County Powerpoint Presentation (Jan 2017)
- Community Meeting 2 (April 2017)
- Online Open House Summary (May 2017)
- Open House and Trail Walk (Aug 2017)