A woman jogs down the slope of a paved asphalt path bordered by a rock wall and a black chainlink fence. The shady area is surrounded by trees and other foliage. A yellow bike with A gravel path is seen in a closeup with the wheels of a bike visible in the background. A park bench in the foreground is installed on a concrete pad next to a paved asphalt path. A rock wall can be seen in the distance of the shady forested scene. A bridge with a steel railing passes over a culvert surrounded by large landscape rocks. A gravel trail disappears over a hill and farther into the woods. A rock wall runs next to a paved road. A log can be seen in the foreground of the shady forest scene

Washington Park Arboretum

Date: April 2016-April 2018
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Description

The Washington Park Arboretum is a 230-acre special-purpose park with the purpose of educating and providing recreation. Seattle Parks and Recreations (SPR) added rock walls and irrigation ditches lining the new multi-use/loop trail. The loop trail is a $7.8 million portion of a 20-year, $45 million master plan for the arboretum.

Washington Rock supplied materials to Ohno Construction and AAA Contractors for the project.

Materials

230 Tons of 2-Man Landscape Rock
150 Tons of 3-Man Landscape Rock
225 Tons of 2"-4" Quarry Spalls
Trail Mix
5/8" Minus

Highlights

Washington Rock's Landscape Rock and Quarry Spalls were used to create the sprawling rock walls throughout the new 1.2-mile trail. The rockery was an important aspect of the new trail. The plans originally called for concrete walls, but the rock walls allowed the arboretum to save money during a construction boom.

Our Trail Mix gravel and 5/8" Minus gravel have also been used to pave the hiking trails. The distinct blue color of our rock contrasts beautifully with the newly restored forest and wetland areas.

Portions of the rock wall were photographed for a Seattle Times article and UW News.

Related Projects

Woodland Garden

Gig Harbor Demonstration Garden

Lakewold Gardens