Sounder South Capacity Expansion Project Update

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Project update

Sounder Train

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. Through that plan, which forecasted strong ridership growth during peak periods, Sound Transit prioritized longer trains over potential new trips. In August of 2021, the Sound Transit Board approved a new schedule for transit expansion projects which designated longer trains and potential new trips as Tier 3 projects, to be completed by 2036 (longer trains) and 2046 (potential new trips).

On May 11, the Sound Transit System Expansion Committee approved action for staff to update the Sounder South Strategic Plan. Through research, peer comparisons, and public outreach, we will consider whether potential additional trips should be prioritized over longer trains. We'll also evaluate whether any new trips should run mid-day, evenings, or on weekends, bearing in mind that any new trips require negotiation with BNSF Railway.

Stay tuned for public outreach later this year, where you can share your input about priorities for Sounder South.

More project info: soundtransit.org/sounder-capacity
Get in touch: melanie.mayock@soundtransit.org or 206-698-4877