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West Seattle Link Extension four stations
West Seattle Link Extension — 4.1 miles and four stations from downtown Seattle to the Alaska Junction, without the Avalon Station
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 · Seattle
- Segments
- Civil works, Track, Signalling, Stations & depots, Electrification
- Technology areas
- Track & civil, Signalling & train control
- Status
- Planned — A fully funded project in the updated ST3 System Plan adopted in May 2026, advancing to final design.
- Value band
- over $1bn
- Currency
- USD
- Key dates (month)
- Record of decision April 2025 · St3 plan update May 2026 · Budget amendment final design June 2026 · Budget amendment row August 2026
Status in full
Read more
A fully funded project in the updated ST3 System Plan adopted in May 2026, advancing to final design. Two construction procurements are live: the W100 SODO Station package is open for bids to September 2026 and the W200 Duwamish River Crossing and Aerial Guideway package closed for submittals in July 2026. Construction has not been let and these figures are programme and budget-authority figures, not contract values.
Next step
Withheld in the free surface
- Full scope
- Exact value
- How the figure was arrived at
- Key dates (4)
- Published bidders
Full detail withheld: 5 fields. In the United States edition · See a fully open example
7 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) · Resolution No. R2026-14, Budget Amendments for West Seattle Link Extension and Ballard Link Extension Consultant Services Contracts (published 2026-06-25 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Resolution No. R2026-19, Budget Amendments for West Seattle Link Extension Right of Way Acquisition and Construction Support Services (published 2026-08-27 · 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)
- ● Federal Transit Administration · Capital Investment Grant (CIG) Dashboard, CIG-Public-Dashboard-09-11-2026.pdf (data last updated 09/10/2026) (published 2026-09-11 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Motion No. M2026-22, Contract Modification for Jacobs Engineering Group for Engineering Design Services for the West Seattle Link Extension project (published 2026-06-25 · checked 2026-09-14)
Related tenders
Same buyer first, then the same segment in this market.
| Tender | Buyer | Status | Value band | Next key date |
|---|---|---|---|---|
| Sound Transit Link light rail vehicle simulator | Sound Transit | Open | value not published | Published August 2026 |
| Sound Transit Series 3 light rail vehicles | Sound Transit | Bids closed | value not published | |
| West Seattle Link Extension W100 SODO Station | Sound Transit | Bids closed | value not published | Published August 2026 |
Show all 6 related tenders
| Tender | Buyer | Status | Value band | Next key date |
|---|---|---|---|---|
| Sounder commuter rail HVAC overhaul | Sound Transit | Open | value not published | Published July 2026 |
| Ballard Link Extension civil engineering design | Sound Transit | Pre-bid | no value published (pre-solicitation notice) | |
| West Seattle Link Extension W200 Duwamish River Crossing | Sound Transit | Bids closed | value not published | Bids closed July 2026 · award expected |
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Compiled by Watchtower to editorial standards the Managing Partner sets and enforces. Public record only — every datum carries its source.