Bridge deck concerns close two lanes of First Avenue South bridge in Seattle

Washington State Department of Transportation sent this bulletin at 02/19/2026 06:00 PM PST

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Bridge deck concerns close two lanes of First Avenue South bridge in Seattle
02/19/2026 05:30 AM PST

SEATTLE – Two lanes of the northbound State Route 99 First Avenue South bridge over the Duwamish River are closed until further notice following a bridge inspection on Wednesday, Feb. 18, that identified concerns with the steel grid deck.