Sounder South Capacity Expansion
Improvements to serve more Sounder South riders

News and updates

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…

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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…

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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…

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Sounder South Capacity Expansion Online Open House

The Sounder South Capacity Expansion Project wants to hear from you! We have launched our first outreach effort for 2020 with our online open house. Learn about potential investments in Sounder…

Sounder South Hero image riders exiting the train

Reminder: share your feedback on Sounder South Capacity Expansion draft plan by Feb. 6

Last fall we shared with you options for expanding capacity on Sounder South to serve growing demand over the coming years. We’ve incorporated your feedback along with results of technical analysis…

Learn about potential investments in the Sounder South line

Sounder has provided reliable, traffic-free service for Puget Sound residents for nearly 20 years. As highway congestion has more than doubled across the region, commuters are looking for other…

Sounder South Hero image riders exiting the train

Draft plan for expanding Sounder South capacity released

Last fall we shared with you options for expanding capacity on Sounder South to serve growing demand over the coming years. We’ve incorporated your feedback along with results of technical analysis…

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What we heard during fall outreach

In September 2019, Sound Transit hosted an online open house and 11 drop-in sessions to share information on possible Sounder South improvements and gather community feedback on priorities. We…