Project map and summary

Map of the West Seattle Link Extension
Map of the West Seattle Link Extension

Take a virtual ride on the West Seattle Link Extension here. 

West Seattle Link Extension project updates

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Overview

The West Seattle Link Extension will add three new stations at SODO, Delridge, and Alaska Junction, providing fast and reliable light rail connections to West Seattle neighborhoods.  This project is part of the regional transit system expansion approved by voters in November 2016. 

Current project status

We're now in the final design phase, the stage where detailed engineering plans are developed.  

In July, we reached 30% design completion. This milestone represents a significant step in advancing the project’s engineering and design, allowing project teams to move into the details of the future route, stations, and other elements.  

Learn more background on the video in our Platform blog post. 

The video is a first look at the future light rail from SODO to West Seattle. As project design continues over the coming months, our team will invite ideas and feedback from our communities. Look out for more! 

Learn more about what goes on during the design phase in Sound Transit’s capital delivery megaprojects. 

Project updates reduce costs and community impacts  

Over the past 18 months, work on the West Seattle Link Extension project has focused on identifying, evaluating, and implementing measures to reduce the project cost and community impacts, and maintain rider experience on the future Link line.  

The most notable change to the West Seattle Link Extension is the removal of Avalon Station. Eliminating Avalon Station shifts more of the route to a tunnel. In turn, this also reduces the project cost and community impacts, and the number of properties needed for construction. In total, we identified over $2 billion in cost savings, while keeping stations at SODO, Delridge, and Alaska Junction. In the coming months, we will work to confirm these design refinements with the Federal Transit Administration. 

Where can I learn more as a property owner? 

Where can I learn more as a project neighbor? 

  • Visit the project’s online open house to learn more about how the West Seattle Link Extension reached the design phase. If you have any questions or would like to set up a meeting to learn more, contact the project team at westseattlelink@soundtransit.org.
A rendering of the future light rail bridge crossing Duwamish Waterway to West Seattle
A rendering of the future light rail bridge crossing the Duwamish Waterway, looking west toward West Seattle. The bridge will carry Link light rail trains between SODO and West Seattle. 

What’s next for the project?  

Sound Transit will continue engaging communities on station design and access projects, development near stations, public art, and construction planning.  

We will contact affected property owners, tenants, and businesses as more information becomes available. We are committed to working closely with affected residents and businesses throughout the process to provide individualized support, relocation assistance, and benefits.  

For more frequent updates as the project progresses, visit the WSLE online open house.