Sounder South Capacity Expansion
Improvements to serve more Sounder South riders

News and updates

A new future for Sounder? Tell us how the S Line can work better for you

Sound Transit is updating the Strategic Plan for Sounder South, and we want to hear from you. Would new Sounder trips at midday, in the evenings, or on weekends work better for you? Or does the…

Sound Transit to update Sounder South Strategic Plan

With evolving changes in ridership patterns caused by work-from-home and hybrid schedules, it's time to revisit the assumptions and priorities from the 2020 Sounder South Strategic Plan.

Your input will inform next steps for improvements

This spring we asked for your feedback on proposed improvements at King Street Station, including a longer platform, adding more stairs and elevators, and a concourse above the platform. Through an…

Reminder: share your feedback on potential station improvements

Thank you to everyone who has visited our online open house or drop-in session! If you haven’t given us your input yet, visit us online by May 10. As part of the Sounder South Capacity Expansion…

Online open house for King Street Station platform area improvements kicks off today

King Street Station in Seattle is a primary destination for Sounder passengers, but the station can feel crowded, especially on the stairs and in the elevators during peak commute times. Additionally…

Share your feedback on potential King Street Station improvements

As a primary destination for Sounder riders, King Street Station can sometimes feel crowded, especially on stairs and in elevators. The current platform also isn’t long enough to serve the 10-car…

Sound Transit Board acts on realignment

In early 2020, the Board launched a process called realignment to review options for addressing the significant affordability gap, most recently forecasted at $6.5 billion, affecting our future…

Sounder South Capacity Expansion web photo

Update on Sounder South Capacity Expansion

In early 2019, Sound Transit began planning for the voter-approved Sounder South Capacity Expansion program, to meet growing demand on Sounder and improve the rider experience. In early 2020, we…

Sounder South Capacity Expansion Project Update Hero Image

What we heard during winter outreach

In January, Sound Transit released the Draft Strategic Development and Implementation Plan, which outlined an approach to delivering the Sounder South Capacity Expansion. The draft plan described…

Illustration showing Sounder train in Seattle.

Upcoming weekend Sounder trains: Feb. 25, 22 and Mar. 1

Sound Transit is running Sounder special event trains on three upcoming weekends: Saturday, Feb. 15: Seattle Dragons vs. Tampa Bay Vipers Saturday, Feb. 22: Seattle Dragons vs. Dallas Renegades…