View PDF
completed: 2004
size: 420 lf span
construction cost: $10 million
role: Job Captain
phases of involvement: PD, SD, DD, initial CD
architect: Johnson Architecture & Planning
contractor: Sordoni-Skanska
A 420 foot pedestrian bridge linking the Elliott Avenue transportation corridor to Centennial Park and Amgen Research and Development Center (now Expedia). The bridge is formed by a single clear span arch supported by a pair of canted archtes, creating an abstract sculpture of the double helix DNA form and symbol of the Amgen corporation’s achievements in the field of biotechnology. The bridge is clad in stainless steel mesh and tensioned fabric membrane as it crosses the BNSF railway lines below.
Project Awards:
2007 Honor Award for Design Excellence, Helix Pedestrian Bridge, AIA-Seattle
2004 Krentz Award for Outstanding Steel Structure, Helix Pedestrian Bridge
