A $14.8 billion naval dry dock at Bremerton, a $14.41 billion Columbia River bridge programme shared with Oregon, a $12.6 billion light rail line to Ballard and the world's first floating-bridge railway — completed across Lake Washington in March 2026 — headline Washington's public pipeline.
*How to read the total: the sum of the published figures in the list below. Bases differ by project — most are total cost estimates, some are federal grants, program totals, or construction contracts as awarded. Each project's expanded view labels its own basis. We add them up with the labels showing rather than pretend they're all the same kind of number.
Hover a pin for the project snapshot. Pin numbers match the project list below. Locations are approximate (nearest city or corridor midpoint) on a schematic state outline.
Click any project to expand its full record — description, owner, dates, funding, the law behind it, and its source. Filter by who owns it and where it stands, or sort by cost.
16 major public projects are listed. The counted figures sum to $60,593,000,000 (≈$60.59B) — and the sum needs its caveats printed with it: three Sound Transit extensions (Everett, Tacoma Dome and West Seattle) publish only cost ranges, so they are listed at null and contribute nothing to the total; the two largest records are programme framings, the Navy's $14.8B Bremerton modernization and the IBR programme's $14.41B P-70 total, the second of which is only $5.68B funded today. Bases differ and are labelled on every record: programme totals, published project totals, committed funding and one amended project budget. This is a majors list, not a census: WSDOT's work programme, Sound Transit's full capital plan and the state's capital budget carry hundreds of smaller projects below this page's $10M published-figure threshold.
Bi-state bridges — one listed here, one pointed to: the Interstate Bridge Replacement Program (I-5, Vancouver–Portland) is listed on this page at its full published programme total of $14.41B under the bi-state rule, with Oregon's joint delivery and funding role disclosed on the record; Oregon's page carries the pointer, not a duplicate. The second case runs the other way: the Hood River–White Salmon Bridge replacement (Hood River, OR – White Salmon/Bingen, WA) is listed on Oregon's page — Washington carries this pointer only. Its published picture, for the record: a $1.12B replacement for the 1924 steel truss bridge, at about 60% design with a federal Record of Decision in November 2025, $125M committed by Washington matched by $125M from Oregon, a $200M federal INFRA grant, a roughly $532M Bridge Investment Program request pending, and a targeted opening in 2031–2032.
Deliberately excluded — private builds, however large: Washington's biggest construction is substantially private and stays off this page. Named exclusions: Microsoft, Amazon and Google data centers and campus work (including the Columbia Basin data-center build-out), Amazon's Bellevue and Seattle office towers, the Seattle Kraken and Mariners facilities work, casino and resort construction by private developers, private utility generation by investor-owned utilities in their commercial capacity, and private housing and logistics development statewide. Purchases, operations and unpriced plans are not builds and are named rather than listed.
Tribal-government projects — documented, excluded-but-named (scope decision pending): federally recognised tribal governments are sovereign governments, but they sit outside this page's current owner rule (federal / state / public university / public city-county), so their projects are documented here in full rather than listed, pending a scope decision. The documented case: the Puyallup Tribe of Indians' Emerald Queen Casino & Hotel in Tacoma — a $372M estimated construction cost in the Tribe's own reporting ($400M as opened, June 2020), 310,000 sq ft with a 21,000 sq ft, 2,000-seat event centre — a completed tribal-government build of a scale that would rank on this page if the owner rule covered it. Also documented: the Tribe's subsequent Tacoma administration building (95,000 sq ft) and 200,000 sq ft parking garage on East 29th Street, broken ground in 2023 for completion in 2024, for which no published project cost was verified. Tribal partnership is separately visible inside a listed record: two Tacoma Dome Link stations and much of its route lie within the Puyallup Reservation, with agency–Tribe coordination stated on that record.
Completed in a prior year, however large: Sound Transit's Federal Way Link Extension ($2.5B, opened December 6, 2025 — the prior-year completion that most nearly made this page), Lynnwood Link Extension (about $3.0–3.1B, opened August 30, 2024), the East Link starter line (opened April 2024, inside the East Link budget counted once on this page at its 2026 completion) and Downtown Redmond Link (opened May 10, 2025); the Alaskan Way Viaduct replacement programme ($3.3B; SR 99 tunnel opened February 4, 2019, with waterfront work completing into the 2020s); and the Mukilteo ferry terminal (opened December 2020). Two 2026 completions ARE listed under the current ruling — the Crosslake Connection (March 28, 2026) and the SEA Gateway Project (January 2026) — with their opening dates printed on their records.