King County Parks has initiated the design of a one-mile segment of the Foothills Trail (formerly known as the Enumclaw Plateau Trail) along right-of-way owned by King County Parks. The trail segment begins at 252nd Avenue South, just outside and south of Enumclaw, and continues along a former railroad route and utilizes the abandoned historic Boise Creek Bridge on its way to the White River.
King County Parks has worked in partnership with the Cities of Enumclaw and Buckley as well as Pierce County to secure funding to construct a pedestrian bridge across the White River. This will connect the Foothills Trail in Buckley and the Pierce County Regional Trail System.
The trail construction project is scheduled to take place during 2018 while the bridge is scheduled to be set in place the following year. For more details read this informational handout.
Visit the Project Information by Segment section to view the latest in design, outreach, technical reports and more. We'll keep all our Foothills Trail neighbors and stakeholders up to date as construction progresses.
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Visit the Trail History section to learn more about the trail's history, resources about the project history, and project scope and timeline.
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The Foothills Trail, much like all of our Regional Trails System trails, is a work in progress requiring constant management and upkeep. We always welcome constructive suggestion about trail maintenance, or safety from our users. Be sure to let us know if you see something on the trail that you think we can improve by downloading and using the app SeeClickFix.
The Missing Link – The White River separates the completed portions of the Foothills Trail in Enumclaw and Buckley. These local governments, along with King and Pierce County Parks, are working together under an inter-local agreement to construct a new pedestrian/multi-use bridge and 1 miles of trail to complete this vital community amenity. Funding for the preliminary design of the entire corridor and construction of the North Segment was proposed as part of the 2014-2019 King County Parks, Trails, and Open Space Replacement Levy.
Historic Transportation Route – The trail alignment diverges from the former BNSF railroad grade to follow the old Highway 410 alignment across the historic Boise Creek Bridge and will utilize three (3) abandoned highway piers across the White River to support the new pedestrian bridge connection to Pierce County. This alignment was decommissioned in 1949 for the modern day bridge and Highway 410 alignment just downstream over the White River.
Why is King County developing the Foothills Trail? – The Foothills Trail is part of a larger vision of mobility and access to all residents of King County. Not only does our Regional Trails System provide a connection between locations, it also connects people to healthy living, recreational opportunities, mental health, stress reduction and much, much more.
South King County is an area that is historically under served. In line with the King County Strategic Plan, trails in south King County are being prioritized to give those neighbors more access to recreational opportunities.
Economic Development and Tourism – The connection of the Foothills Trail system in Pierce and King counties will help stimulate economic development in the cities of Enumclaw and Buckley as additional trail users visit both cities and spur business development adjacent to the trail.
Health and Safety– Completing the new bridge and trail system will provide an alternative emergency route for pedestrians and vehicles in the event the SR 410 bridge at Buckley becomes impassable during a catastrophic event. Without an alternative crossing, access to the nearest hospital (currently located in Enumclaw) for citizens in the Buckley area could take up to 30 minutes or longer during an emergency. For life-threatening injuries, including those associated with residents of the Rainier School for the developmentally disabled, this presents a critical life-safety issue that this project can successfully mitigate.
Sense of Community – The trail connection will provide an important community link between the Enumclaw and Buckley area communities by providing a safe, separated, non-motorized transportation corridor for walkers and cyclists that currently isn’t available using the existing SR 410 bridge.
King County Parks is initiating the design and construction of a one-mile segment of the Foothills Trail (formerly known as the Enumclaw Plateau Trail) along right-of-way owned by King County Parks. The trail segment begins at 252nd Avenue South, just outside and south of Enumclaw, and continues along a former railroad route to its terminus just north of Mud Mountain Road. King County Parks is working with the Cities of Enumclaw and Buckley to construct a bridge across the White River to connect both sides of the Foothills Trail.
King County Parks completed Phase I in 2010 of Foothill Trail development, constructing a soft surface trail on a one-mile segment of the trail from 252nd Ave S to just north of Mud Mountain Road near Enumclaw. Phase I also included improving the crossing at 252nd Ave S and installing a new pedestrian footbridge over a small stream that bisects the trail. For more information read this handout.
Construction update: This project is currently in the design phase. You can view the current 60% design plans below.
- Delineation Report
- Habitat Assessment
- Boise Creek Arch Bridge Evaluation Report
- Cultural Resources
- Geotechnical Report
- Mud Mountain Road Crossing Options Report
- Bridge Comparison Matrix
- 2008 Feasibility Study with Route Options
- SEPA DNS
- SEPA Checklist
White River Historical Footprint Documentation:
- 1906 Drawing
- 1937 Aerial Photo - East
- 1937 Aerial Photo - West
- 2012 100yr and 500yr Floodplain Map
- 2013 Flood Insurance Study
- 2016 River Google Earth Photo
Public Outreach: Check here to review all public outreach communication once available.
Neighborhood Meeting Summaries: Check here to view any summaries of neighborhood meeting minutes once available.
Project Manager: Chris Erickson