Skip directly to content

Tukwila Extension/Boeing Access Road

RailWorks constructed the direct fixaton track on the aerial guideway.
Project Highlights 
  • Constructed 10+ miles of DF track
  • Installed 2 double crossovers and 32 insulated joints
  • Constructed 6,000 track feet of DF on the guideway
Seattle and Tukwila, Washington
Sound Transit
Business Unit 
RailWorks Track Systems
Project Description 

RailWorks served as a subcontractor to PCL Construction Services and performed track construction and related services.

Project Scope 

RailWorks constructed 10.28 miles of direct fixation track including 2 each double crossovers and 32 field–bonded insulated joints from the Boeing Access Road to the Tukwila light rail extension (C755) in Seattle. The Extension from Tukwila to the Port of Seattle property (C410) included constructing an additional 3,000 guideway feet (6,000 tf).

Unique Features 

The construction environment included an aerial guideway through suburban and industrial areas, crossing the Duwamish River and a BNSF classification yard, 3 flash butt welding sites with limited access throughout the project.