It runs along two sides of the Seattle City Light Union Street Substation, on Post Alley between Union and University Streets.

[1] In 2003, Stewart Oksenhorn of The Aspen Times wrote, "What might be [Sperry's] most impressive work was designed as functional art.

In the mid-'80s, Sperry won a competition sponsored by the Seattle Arts Commission Percent for Art Program, which resulted in 1988's Seattle Garden, a 334-foot long installation bordering a downtown Seattle power substation.

The aim was to prevent kids from climbing onto the substation grounds.

Sperry's sharp-edged, flower-inspired metal work not only served the purpose, but also beautified the neighborhood.