Westside Trail
In DesignA planned 20-mile regional trail connecting Beaverton to Lake Oswego through the Tualatin Hills, with most segments built but key gaps remaining.
Agency: THPRD / Washington County
The Westside Trail is a 20-mile north–south multi-use path running through the Tualatin Hills from Beaverton to Lake Oswego. THPRD is the primary builder and operator. Most segments are built, but critical gaps—including a freeway crossing—remain unfunded or in design.
Why It Matters
The Westside Trail is the only continuous north-south off-street route through the Tualatin Hills. Completing it would give cyclists a protected spine connecting communities from Beaverton to Lake Oswego without using arterials like Murray, Hall, or Scholls Ferry.
Current Status
What’s Built
Most of the trail corridor through the Tualatin Hills is open. Notable completed sections include:
- Segment 18 (1 mile, Rock Creek Trail to Kaiser Road) — open, with over 400 feet of raised wooden boardwalk through Bronson Creek wetlands
- Segments through Westside Linear Park, Murrayhill Park, Hart Meadows, Summercrest, and Barrows parks
Key Gaps and Active Projects
Bridge over US-26 (in design — $18M estimated, construction ~2030)
The biggest gap is a crossing of US Highway 26 (Sunset Highway) between SW Greenbrier Parkway and NW Cornell Road. THPRD is designing a dedicated pedestrian and bicycle bridge with $1.9M in Metro Parks Bond funding secured. See the Westside Trail Bridge project page for full details.
SW 155th / Sexton Mountain connector (approved, awaiting construction)
A short 0.15-mile soft-surface trail connecting the Westside Trail to SW Sexton Mountain Drive near SW 155th Ave. Concept plan approved by THPRD Board in January 2022.
Beaverton Creek Trail — Segments 3 & 4 (construction planned 2025–2026)
A 1.5-mile off-street trail connecting the Westside Trail to SW Hocken Avenue through central Beaverton, running alongside the TriMet MAX corridor. Funded with $2,055,647 in Metro Regional Flexible Funds.
Get Involved
- THPRD Board of Directors meetings: key votes on trail projects happen here
- Washington County commissioners and the county MSTIP fund contribute capital for some segments
- See Get Involved for how to show up effectively to planning meetings
Resources
- THPRD Westside Trail
- THPRD: Westside Trail Bridge over US-26
- THPRD: Beaverton Creek Trail Segments 3 & 4
- Washington County Transportation
Know of an update, gap, or resource to add? See the About section for ways to reach us.