Welcome to the Westside Trail

In the Summer of 2024, Metro collaborated with local agencies and partners to compile a list of "shovel-ready" projects that were vital to building out the regional trail system.

What Is The Westside Trail?

The Westside Trail is more than the portion that King City will have, but our piece is the most foundational.

When it's complete, the Westside Trail will be a 25-mile pathway connecting the Tualatin River to the Willamette River through a series of multi-use trails.

The foundational southern piece will be the 0.8-mile portion in King City, which will create the final connector to the Tualatin River and, in the far future, be completed with a bike and pedestrian bridge spanning the Tualatin River. Once completed, the bridge will connect the Westside Trail to the northern end of the Ice Age Tonquin Trail, and together they will span roughly 25 miles.

This trail will directly serve the residents of King City, Tigard, Tualatin, and unincorporated Washington County. It will provide much-needed park space, active recreation, and access to the Tualatin River via the kayak and boat launch.

Priorities include a paved, ADA-compliant trail that is easily accessible to all community members, plus additional nearby parking for easy access to the trail and the Tualatin River kayak and paddle launch.

A map of the Westside Trail Segment 1, courtesy of Max Carter, King City City Planner.

Where is the Project Currently?

When this project started in 2024, its original concept included many amenities residents identified as important at multiple open houses and feedback events. The amenities included a BMX or skate park, field space for organized sports, community garden spaces, a dog park, and another children's playground. All of those amenities put the project at a cost of $10-$12 million.

One half of the old version of the Westside Trail with all amenities

The second half of the Westside Trail with all the amenities

Other concerns with this plan included increased traffic, impacts on the nearby neighborhood, encroaching on private property, additional amenities taking away from the trail's main focus, and overdevelopment that could impact local wildlife habitat and natural areas.

With these concerns in mind, the City spent the past year reviewing the trail's concept plan and what was needed versus what was desired.

A revised version of the Westside trail plan with no amenities and no encroachment

The second half of the revised version of the Westside Trail plan with no amenities and no encroachment

The new version simplifies the project and drastically reduces costs while keeping the trail's intent intact: a pathway that connects people to nature and is usable by everyone.

Why it All Matters:

Currently, the area that will be the Westside Trail looks like this:

Current condition of the area as of September 2026

Now, imagine an area that could look like this:

A recreated image of a potential Westside Trail path

The Westside Trail would not just be a route for hikers and backpackers looking to complete the full 25-mile trail, but an inviting walking path for King City and nearby residents to enjoy, while also helping pollinators through native plants and other vegetation.

A graphic that explains the merits of the Westside Trail section for King City

Want to learn more about the Westside Trail Project?

Contact Max Carter, City Planner: mcarter@ci.king-city.or.us