Crash shuts down multiple lanes on SB I-405 near Bellevue during monday morning commute

A collision on southbound I-405 just north of State Route (SR) 520 blocked multiple lanes in Bellevue on Monday morning, the Washington State Department of Transportation (WSDOT) confirmed.

At approximately 2:30 a.m., WSDOT announced the collision was blocking two right lanes on SB 405.

Lanes blocked on SB I-405 near Bellevue

More than an hour later, WSDOT updated that three right lanes were blocked just before 4 a.m.

UPDATE: Three right lanes of southbound I-405 remain blocked just north of SR 520 in @bellevuewa due to a collision.

Traffic is getting by using the Express Toll Lanes.

There is no estimate to reopen all lanes on southbound I-405. Please use caution and expect delays. https://t.co/J55AlGGtgj pic.twitter.com/QuFVuHd6bo

— WSDOT Traffic (@wsdot_traffic) August 4, 2025

Traffic continued to bypass the collision using the Express Toll Lanes.

At approximately 6 a.m., WSDOT confirmed all lanes had reopened.

CLEARED: All lanes have reopened on southbound I-405 near SR 520.

Please continue to expect delays in the area while the backups clear. https://t.co/JO2LdgmTyO

— WSDOT Traffic (@wsdot_traffic) August 4, 2025

WSDOT advised to use caution when driving through the area and expect delays while the backups clear.

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