(UPDATED 8:41 PM with more traffic effects tonight, and tomorrow)
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Drive 99? Note that the weekend closure mentioned on the sign is NOT the only Highway 99 closure ahead:
TONIGHT: Highway 99/Alaskan Way Viaduct is CLOSED SOUTHBOUND OVERNIGHT.
EARLY SATURDAY TILL EARLY MONDAY: 99/Viaduct is closed both ways, 6 am Saturday till 5 am Monday (if it reopens earlier, we’ll publish an update).
THEN, TWO WEEKS LATER: The Viaduct/99 will close again from 11 pm Friday, April 6th, till 5 am Monday, April 9th.
ADDED 8:41 PM: Sorry to have not had this all in one place sooner but there are a variety of things to note for tonight, and tomorrow, besides tonight’s overnight 99/Viaduct closure. First, from the weekly lookahead:
*Tonight, per SDOT: “The 1st Ave S off-ramp from the West Seattle Bridge will be closed overnight. The 4th Ave off-ramp will remain open from the Spokane Street Viaduct for access to the SODO and downtown area.”
*Also tonight, per SDOT: “The northbound on-ramp from S Royal Brougham Way to the Alaskan Way Viaduct (SR99) will be closed overnight.”
*And more for tonight: “A single eastbound lane on the Spokane Street Viaduct will be closed overnight. Access to I-5 will be maintained.”
*Yet more for tonight: “Eastbound S Spokane St will be closed between East Marginal Way S and 1st Ave S each night.”
*And for Friday morning, this too from SDOT, announced late today: “Tomorrow morning, March 23, motorists traveling in the vicinity of the Seattle Center may encounter heavier traffic than usual. Between the hours of 9 a.m. and 1 p.m. a crowd of 3,500 or more will be attending a private event at the Key Arena. Traffic could build in the area as early as 7 a.m. and likely will impact the morning commute between the Center grounds and I-5. Charter buses will be unloading and loading attendees during the event on streets near the Key Arena.” (Multiple WSB’ers tell us the “private event” is the Amazon all-hands meeting.)
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