
Bob Ortblad offers further analysis of I-5 Bridge replacement costs
Editor’s note: Opinions expressed in this letter to the editor are those of the author alone and do not reflect the editorial position of ClarkCountyToday.com
Washington Representative John Ley’s recent article, “Can $10 tolls be coming to the Interstate Bridge?” significantly underestimates potential toll costs, which could be closer to $20.

The Interstate Bridge Replacement Program’s (IBR) “2023 Financial Plan” appears overly optimistic, starting with a $1 billion shortfall: $6.5 billion in funds minus an estimated $7.5 billion in costs equals a $1.0 billion deficit. Furthermore, a $1 billion grant from the Federal Transit Administration faces a low chance of success due to low ridership numbers, impractical elevated stations, and park-and-ride garages situated near the freeway, which promote additional vehicle miles traveled (VMT) and contribute to urban sprawl. To compensate for the expected shortfall from the loss of a Federal Transit Administration grant, the Washington Legislature is proposing $2.5 billion in toll bonds, which is a $1.3 billion increase over the IBR’s original plan.
The IBR’s last cost estimate was issued in 2022, with a new estimate slated for release in July 2025, after the sessions of both Washington and Oregon legislatures conclude. Recent tariffs and cost escalations are likely to raise the total by a conservative 25%, pushing the estimated cost to around $9.4 billion. Both Washington and Oregon are facing transportation budget crises, with little hope for additional federal funding. Thus, the only remaining source of funds appears to be $5 billion in tolls, potentially driving tolls up to an exorbitant $20 per crossing.
The IBR needs a more cost-effective design. It should cancel plans to widen five miles of freeway and reconstruct five interchanges, two massive bridge approaches, and an oversized bridge. A more viable solution would involve preserving the current bridges, which have six lanes, and constructing an immersed tunnel with four or six additional lanes. This alternative would be more cost-effective and offer many environmental and safety benefits.
Bob Ortblad MSCE, MBA
Seattle
Also read:
- C-TRAN: Light rail funding addressed again; changes are coming to C-TRAN board compositionC-TRAN approved new language tied to the Interstate Bridge Replacement Program that shields smaller cities from light rail operating costs while shifting potential financial responsibility toward Vancouver and the urban growth area.
- City of Washougal advances overcrossing design for 32nd St Rail Crossing ProjectWashougal officials have selected an overcrossing design for the 32nd Street Rail Crossing Project, aiming to improve safety and reduce traffic delays caused by frequent train blockages.
- Opinion: Trails, roadways and crosswalksDoug Dahl explains how Washington law treats hiking trails that cross roadways and whether pedestrians automatically have the right-of-way.
- Expect delays on northbound I-205 in Vancouver for guardrail repairs March 4WSDOT will close the left lane of northbound I-205 in Vancouver from 10 a.m. to 2 p.m. March 4 for guardrail repairs between Exit 36 and the northbound I-5 on-ramp.
- Letter: IBR’s money pitBob Ortblad argues the Interstate Bridge Replacement Program is withholding a higher cost estimate while moving forward with limited funding and an unclear construction timeline.






