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Sounder extension to DuPont
Every fact on this page is free. Exact values, dates, award detail and the procurement route open in the United States edition — one edition is free with one email. Open your free edition · Open this record in the Atlas
- Buyer
- Central Puget Sound Regional Transit Authority (Sound Transit)
- Where
- Washington · Tacoma
- Segments
- Track, Signalling, Civil works, Stations & depots
- Technology areas
- Track & civil, Signalling & train control
- Status
- Planned — Funded through the planning phase only in the updated ST3 System Plan; final design and construction of the remainder are listed as not currently affordable within existing resources.
- Value band
- $5–25m
- Currency
- USD
- Key dates (month)
- St3 plan update May 2026 · Alternative services study solicitation 2026 · Early planning directed 2027
Status in full
Read more
Funded through the planning phase only in the updated ST3 System Plan; final design and construction of the remainder are listed as not currently affordable within existing resources. Resolution R2026-11 directs early planning and design work to begin in 2027. The Quarterly Procurement Look Ahead carries a Sounder DuPont Extension alternative services study for the fourth quarter of 2026 to evaluate the market potential of a new type of high-capacity service between DuPont and Tacoma, ridership potential and operations feasibility between DuPont and Seattle.
Next step
Withheld in the free surface
- Full scope
- Exact value
- How the figure was arrived at
- Key dates (3)
- Published bidders
Full detail withheld: 5 fields. In the United States edition · See a fully open example
4 sources · all primary
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Resolution No. R2026-11, Updating the ST3 System Plan (Board final action 28 May 2026), with Attachment A tables 1-3 and the updated sources-and-uses summary (published 2026-05-28 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · 2026 Adopted Budget and Financial Plan — agency overview, transit operating budgets by mode, project budgets, Transit Improvement Plan and Appendix I project and programme detail pages (published 2026-03-23 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Quarterly Procurement Look Ahead — upcoming architectural, engineering and construction procurements over the next 18 to 24 months, last updated July 2026 (published 2026-07 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Motion No. M2026-14, Contract Modification with David Evans & Associates for the Sounder South Capacity Expansion and Sounder DuPont Extension projects - Sounder Rail and Signals Improvement Project (published 2026-04-09 · checked 2026-09-14)
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|---|---|---|---|---|
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