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SR 99 Seattle: Both directions of the Alaskan Way Viaduct/SR 99 between the West Seattle Bridge and the south end of the Battery Street Tunnel will be closed for approximately two weeks beginning at 12:01 a.m. Friday, April 29, for tunneling work. On-ramps will start to close at 10 p.m. Thursday, April 28.I-5 Marysville: Northbound I-5 before SR 528 will be reduced to two narrower lanes from 9:30 p.m. Friday, April 29, to 5 a.m. Monday, May 2, for expansion joint replacement work. Traffic may be reduced to one lane overnight Friday and overnight Sunday. This work is weather dependent.
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King County Special Events
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