Three-day closure of northbound SR 99 First Avenue South bridge begins March 9 for temporary repairs

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03/04/2026 10:36 AM PST

SEATTLE – The Washington State Department of Transportation will begin temporary repairs on the northbound State Route 99 First Avenue South bridge during a three-day closure of all northbound lanes from 5 a.m. Monday, March 9, through 8 p.m. Wednesday, March 11.