Lynnwood Link Extension

Unlocked a potential $2 million in funds for the project

8.5 miles of new track connected to the existing transit network

Up to 55,000 projected daily riders by 2026

Challenges

To expand transit service and reduce journey times for travelers, Sound Transit is adding 8.5 miles of double track and four new light rail stations.
Sound Transit has taken on a role beyond providing transit; it is supporting regional growth and fostering livable communities, including transit-oriented development (TOD).
Sound Transit needed final design support for the rail system elements including traction power substations, overhead catenary, train control, and communication systems.
Vehicle procurement support and other engineered elements needed to work with other systems already in service, all contributing to overall alignment design supporting livable communities.

Identified potential funding sources and assisted with the development of application packages for various grant programs, including those particularly linked to TOD.
Provided train control, traction power, and overhead catenary design for the light rail system along the alignment.
Designed communications elements, including network access layer, telephone, radio, closed-circuit television, public address, variable message signs, and access control systems for rooms and public spaces.
Supported Sound Transit with the procurement of the light rail vehicles, including technical specifications, inspections, testing, and commissioning services.

Developed a compelling grant application package that successfully secured commitment from a housing developer to improve light access to watercourse, regardless of outside funding.
Created the workplan and resulting content to unlock funding contributions toward the project.
Design and project development resulted in seamless interfaces between existing and new components for successful operation of all systems elements.
Successful procurement of 162 light rail vehicles designed to operate throughout the current systems, the new Lynnwood and East Link (2 Line), and all future systems expansion alignments.