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Operations and Maintenance Facility South design-build
Operations and Maintenance Facility South — progressive design-build contract with Hoffman Construction Company of Washington, including the main line and test track
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
- Stations & depots, Civil works, Track, Electrification, Signalling
- Technology areas
- Track & civil, Signalling & train control, Predictive maintenance
- Status
- In execution — The Board authorised the contract in March 2026.
- Value band
- $100–500m
- Currency
- USD
- Key dates (month)
- Committee recommendation March 2026 · Awarded March 2026 · Baseline budget action anticipated 2028 · Contract start May 2026 · Contract expiration phase12 March 2027
Status in full
Read more
The Board authorised the contract in March 2026. Final design is in progress on a progressive design-build basis for Phase 1, which covers final design and pre-construction services; Sound Transit's System Expansion Monthly Status Report of September 2026 records the project at 30 per cent complete in design. A future Board action is anticipated in 2028 to set the project's baseline budget and authorise funding to complete the construction phase.
Next step
Withheld in the free surface
- Full scope
- Exact value
- How the figure was arrived at
- Key dates (5)
- Published bidders
Full detail withheld: 5 fields. In the United States edition · See a fully open example
6 sources · all primary
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Motion No. M2026-11, Progressive Design-Build Contract with Hoffman Construction Company of Washington for the Operations and Maintenance Facility South project (Board final action 26 March 2026) (published 2026-03-26 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Resolution No. R2026-05, Budget Amendment for the Operations and Maintenance Facility South Project Progressive Design-Build Contract (published 2026-03-26 · checked 2026-09-14)
- ● 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) · Open and Closed Contracts Awarded in Excess of $100,000 (trailing 12 months), generated 8/3/2026 (published 2026-08-03 · checked 2026-09-14)
- ● Central Puget Sound Regional Transit Authority (Sound Transit) · Presentation - System Expansion Monthly Status Report, System Expansion Committee 10 September 2026 (published 2026-09-10 · 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)
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