Seattle Now How to survive 'Revive I-5'
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Jan 28, 2026 Yinhai Wang, transportation engineering professor and director of TRAC at UW, offers expert analysis on the Revive I-5 project. He walks through why the Ship Canal Bridge needs long repairs. He explains regional ripple effects, which local streets will see detours, and practical commuting strategies to cope with multi-year lane closures.
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Ship Canal Bridge Is A Regional Bottleneck
- The Ship Canal Bridge carries roughly 240,000 vehicles per day and closures create regional ripple effects.
- Closing two lanes on I-5 will push demand onto parallel streets and other corridors until drivers adapt.
Local Commute Informs Perspective
- Yinhai Wang lives on the east side and notices limited personal impact because he uses 520 Bridge.
- He expects southbound I-5 travelers to face larger delays initially due to reversible lane changes.
Traffic Disruptions Spread Systemwide
- Traffic problems spread through the network and are rarely isolated to one segment.
- Drivers will search new routes and traffic will stabilize only after people find preferred alternatives.