Consultants, ODOT flag immediate queuing and overpass clearance problems at Main Street interchange

Jun 11, 2026

The IAMP update team and ODOT told the advisory committee the westbound off‑ramp is experiencing queuing and sight‑distance limits and the Main Street overpass has height constraints with recent bridge strikes; these issues are being elevated from 'long‑term' to nearer‑term priorities in the update.

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Consultants told the advisory committee that some capacity and sight‑distance issues at the westbound off‑ramp are already manifesting in queuing and "queue spillback" during peak periods. "That off ramp has some vehicle queuing, issues... It's not a it's not a future need. It's a today need," Matt Hugart said while summarizing findings carried forward from the 2009 IAMP and the 2025 TSP.

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