King Street Station Plaza
A heavily used public space in Seattle calls for a pathway surface that feels appropriate to its historic surroundings, while accommodating a steady flow of people.
EXPLORE TRAILBINDER →Stabilize Loose Aggregates with PolyFirm
Bring the texture and character of natural aggregate into contemporary landscape design, with hard-wearing, permeable pathways made for everyday use.
20 Years of Pacific Northwest Installations
Featured projects
Across parks, civic spaces, campuses, and cultural landscapes, aggregate is frequently chosen for its understated appearance. These projects show how that material character can become part of a more considered pathway design.
Olympic Sculpture Park
At Seattle’s Olympic Sculpture Park, long, sloped gravel paths connect visitors to the waterfront. Without stabilization, rainwater moving downhill can displace aggregate, cut ruts into the walking surface, and leave depressions or potholes that require repeated repair. TrailBinder helps hold the chosen aggregate together, retaining the natural appearance of the paths while making them more practical to maintain under heavy pedestrian use.
EXPLORE TRAILBINDER →Washington Park Arboretum
Within the arboretum, natural-looking pathways are essential to the experience of the landscape. Aggregate stabilization supports the design while leaving room for maintenance and seasonal care.
EXPLORE TRAILBINDER →20 years in the Pacific Northwest.
ABOUT POLYFIRMAdditional installations
TrailBinder has also been used in parks, schools, civic projects, and cultural landscapes throughout the Pacific Northwest.
Parks & Recreation
- Seattle Arboretum — Pagoda Walkway and Washington Lake Path
- Seattle Parks & Recreation — over a dozen park projects
- Bellevue Parks & Recreation
- Saltwater State Park, Des Moines, Washington
- Kubota Garden, Seattle
Educational Institutions
- Seattle School District — Nathan Hale High School
- Seattle School District — Hamilton Middle School
- Seattle School District — Meadowdale Elementary School
- Evergreen State College, Olympia
Public Works & Civic
- Seattle Public Works — King Street Station
- Seattle Public Works — Madison Valley Stormwater Collection Park
- Bothell Civic Center
- Mukilteo Historic Lighthouse Project
Cultural & Entertainment
- Seattle Art Museum — Olympic Sculpture Park
- Chateau Ste. Michelle Performance Center, Woodinville
Why designers specify TrailBinder
Selecting the right aggregate is about more than color or texture. A good pathway detail also has to account for the people who will use it, the conditions they will encounter, and the maintenance that can reasonably be provided over time.
Retain the material character
Choose the color, grading, and texture that belong in the landscape, without replacing natural aggregate with a visually unrelated paving material.
Address day-to-day use
Reduce loose material displacement and create a more cohesive pedestrian surface when the base and aggregate are properly prepared.
Account for the years ahead
Plan for inspection, localized repairs, and periodic reapplication, rather than assuming the surface will never need attention.
Start with the pathway you want to build.
Look at the system, review the materials, and estimate the quantities before discussing the details of your project.