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SR 99/Alaskan Way Viaduct Seattle: Both directions of the Alaskan Way Viaduct/SR 99 between the West Seattle Bridge and the south end of the Battery Street Tunnel closed on Friday, April 29, for approximately two weeks for tunneling work.I-5 Marysville: Northbound I-5 before SR 528 is reduced to three narrower lanes with a speed limit of 45 mph for expansion joint replacement work. Traffic will be reduced to two narrower lanes and the northbound SR 529 on-ramp will be closed from 9:30 p.m. Friday, May 6, to 5 a.m. Monday, May 9. Traffic may be reduced to one lane overnight Friday and overnight Sunday.Montlake Boulevard East/SR 513: Both directions of Montlake Boulevard East/SR 513 at the Montlake Bridge will be closed from 10 a.m. to 4 p.m. Saturday, May 7, for the opening day of Seattle’s boating season. The westbound SR 520 off-ramp and left-turn lane of the eastbound SR 520 off-ramp to Montlake Boulevard East/SR 513 will also be closed. A signed detour will be in place.
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