Bob Ortblad scrutinizes IBR ramp design

Editor’s note: Opinions expressed in this letter to the editor are those of the author alone and may not reflect the editorial position of ClarkCountyToday.com
Three years ago, I created and posted a graphic of a possible “Shared Use Path.” The graphic accurately depicted the difficulty of a 100-foot climb to the bridge level. Interstate Bridge Replacement Program (IBR) officials were not happy with my depiction and promised to consider future multiple ramp designs.

The latest of these designs was presented at an IBR workshop on August 27, 2025, by Knight Architects, a costly firm from London. Knight’s design has a grade of 4%, is about a half-mile-long, with turns totaling 810-degrees.

A small model of the shared use path was presented to an IBR architectural advisory group in October.
IBR October newsletter https://mailchi.mp/interstatebridge/ibroctober2025newsletter

Knight Architects’ ramp design may have been inspired by a Disney Cruise water slide. For an average walker or biker, the distance, grade, and turns will make the climb exhausting and disorienting. The descent will be terrifying. Knight Architects has a $1.4 million contract; how much was wasted on this flawed design and model?
Bob Ortblad MSCE, MBA
Seattle
Also read:
- Washington Rep. John Ley warns ballooning bridge budget needs reality checkRep. John Ley says the IBR ballooned from a $44M contract to a $13B–$15B project, with phase one still $2.2B short.
- POLL: The IBR project is described as only 30% designed and 30% funded after more than six years of work. How confident are you in the current management of the IBR program?IBR’s cost has climbed from $3.2–$4.8B to $15.2B while the project remains 30% designed and 30% funded.
- Opinion: Two bridges, one expanding billBracchi traces how the IBR’s estimated cost grew from roughly $3B to $14.4B as Vancouver’s Bridge Shelter adds millions in annual operating costs alongside existing homelessness programs.
- Letter: IBR’s top truck speed 20 mph?Bob Ortblad used AI analysis to flag speed and safety concerns in the IBR’s temporary six-lane temporary diversion design.
- Opinion: Stop rewarding fiscal mismanagement on the IBR; enough is enoughRep. John Ley argues the $15.2B IBR project is underfunded, years behind schedule, and should strip out its $3.5B transit component.






