The High Cost of Hiding: Why IBR’s Delayed Revenue Study Is a $15 Billion Warning Sign

The High Cost of Hiding: Why IBR’s Delayed Revenue Study Is a $15 Billion Warning Sign

City Observatory —
City Observatory —Apr 14, 2026

Key Takeaways

  • IGA delayed to June 2027, six months past original deadline
  • Project cost now $12‑$15 billion, up from $5‑$7.5 billion
  • Toll revenue target $1.25 billion likely unattainable without higher rates
  • Current I‑5 bridge traffic 127,000 VPD, below IBR’s 142,000 claim
  • Rising 30‑year rates cut borrowing capacity, increasing toll pressure

Pulse Analysis

The Interstate Bridge Project’s decision to push back its Investment Grade Analysis (IGA) until mid‑2027 raises red flags for investors and policymakers. The IGA is the benchmark that independent analysts use to validate traffic volumes and revenue streams before issuing revenue bonds. By postponing this study, IBR deprives lenders of the data needed to price debt accurately, forcing the states to rely on optimistic internal forecasts that have historically proved unreliable. In a climate of tightening credit markets, the delay could inflate borrowing costs and jeopardize the $12‑$15 billion financing plan.

Historically, similar projects have seen IGA findings dramatically reshape expectations. The 2013 Columbia River Crossing analysis slashed projected traffic by nearly half and doubled minimum tolls, prompting a reassessment of the project's viability. IBR now faces comparable headwinds: current traffic counts on the I‑5 bridges sit at 127,000 vehicles per day—well below the 142,000 figure used in promotional materials—and post‑pandemic work‑from‑home trends further dampen growth. Coupled with a near‑doubling of the 30‑year Treasury rate to roughly 5%, the revenue‑backed bond market will demand higher yields, translating into steeper tolls for drivers.

For legislators and the public, the stakes are clear. Higher tolls not only burden commuters but also risk diverting traffic to alternative routes, undermining the projected revenue base. Transparency on the IGA’s preliminary results would allow policymakers to adjust financing structures, explore alternative revenue sources, or reconsider the project's scale before construction locks in costs. Prompt release of the IGA, even in draft form, is essential to maintain fiscal responsibility and public trust in this multi‑billion‑dollar infrastructure venture.

The High Cost of Hiding: Why IBR’s Delayed Revenue Study is a $15 Billion Warning Sign

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