I-5 Bridge Megaproject Advances, Signaling Years of Subcontractor Work
A generational infrastructure job just took its first real step toward the construction phase. ENR reports that the Interstate Bridge Replacement (IBR) program has issued a request for qualifications for the initial $3.9 billion phase of what will ultimately be a $14.4 billion effort to rebuild the aging I-5 corridor between Portland, Oregon, and Vancouver, Washington.
Background
The current Columbia River crossing consists of two lift-span bridges, one built in 1917 for horse-and-buggy traffic and a second added in 1958. Both sit on timber piles driven into sandy soil, a foundation type that engineers consider a serious seismic risk, according to ENR. Together the spans now carry more than 140,000 vehicles and $132 million in goods every day, a load never contemplated when the older span was designed.
The replacement effort has a long, difficult history. An earlier attempt, the Columbia River Crossing project, ran from 2005 to 2013 before the Washington State Senate pulled funding over disputes about design, transit and cost. The current program was revived in November 2019 when Oregon and Washington governors signed a bi-state agreement to restart the work, ENR reports.
The project cleared a major regulatory hurdle in July when the Federal Highway Administration and Federal Transit Administration issued an amended record of decision, closing out the National Environmental Policy Act review after responses to more than 9,000 public comments, according to IBR interim administrator Carley Francis. That clearance opened the door to this week’s RFQ.
Cost has been a persistent flashpoint. ENR notes the bridge estimate has grown by roughly $2 billion since 2022, with program officials attributing the jump to inflation and market-driven increases in construction bids. That escalation reportedly caught public officials off guard earlier this year, though both governors have since reaffirmed their commitment to funding the gap. Washington Gov. Bob Ferguson said delaying the project “has never made costs go down,” while Oregon Gov. Tina Kotek said “it’s time to start building.”
Analysis
Splitting the program into phases was a deliberate move to keep federal money from lapsing. Federal grant funding tied to the project would be forfeited if construction doesn’t begin in 2026, a deadline that appears to be driving the pace of procurement right now. With $5.7 billion already lined up from state contributions, federal grants and future tolling, the first phase has enough committed funding to move, even though the full $14.4 billion program is not yet fully financed.
The choice of progressive design-build, administered by the Washington State Department of Transportation working with Oregon DOT, is notable for how it structures subcontractor opportunity. Unlike a traditional low-bid design-bid-build job, progressive design-build brings the general contractor and designer on board early, then builds out the subcontractor packages as design matures. That means firms won’t see detailed scopes and pricing until well after the design-builder is selected, which the program expects by mid-2027.
The scale of the physical work also points to sustained, diversified demand. The plan calls for two new single-level, fixed-span bridges, each carrying three through lanes plus an auxiliary lane in both directions, safety shoulders built for bus-on-shoulder service, decking designed to accommodate future light rail on the southbound span, and a separated shared-use path on the northbound structure. First-phase scope includes the new river bridge itself, connections into I-5 in both states, a Hayden Island and State Route 14 tie-in, transit system design work, toll infrastructure ahead of 2028 collection, and demolition of the existing bridges. That is a rare combination of marine, structural, civil and systems work concentrated in one corridor for years at a stretch.
What It Means for Subcontractors
- Mark the RFQ submission deadline of Sept. 30, 2026. The formal request for proposals follows in November, with design-builder selection expected mid-2027, design starting immediately after, and construction beginning in 2028, so lower-tier subcontract packages likely won’t firm up until late 2027 or 2028.
- Marine and foundation contractors should track the river bridge replacement scope closely given the seismic-resilience requirements and the timber-pile failure risk cited for the existing structure, likely driving demand for specialized deep foundation and marine construction work.
- Civil and highway contractors in the Portland-Vancouver corridor should watch for packages tied to the Hayden Island and State Route 14 interchange connections and the I-5 tie-ins in both Oregon and Washington, part of the first phase’s $3.9 billion scope.
- Firms with transit systems or light rail decking experience have a specific opening: the design calls for southbound decking compatible with future light rail addition, a scope detail that will need specialized structural and systems subcontractors.
- Toll infrastructure contractors should note the 2028 tolling start date, which means toll system design, procurement and installation work needs to be substantially complete before then.
- General contractors and major subs should prepare for progressive design-build teaming now, since WSDOT and ODOT are shortlisting qualified firms this fall before detailed proposals and pricing are requested in November.
