(Live view from the east-facing WS Bridge camera; see other cameras on the WSB Traffic page)
3:16 PM: Thanks to everybody who’s texted and tweeted about this: A multiple-vehicle crash on the eastbound bridge around the 1st Avenue South Exit is backing up traffic – compounding the challenges of the Viaduct and southbound I-5 ramp closures. One texter says it appears to be “in the left lane eastbound right after 1st Ave. S. exit.” No other details yet – just getting the warning out for starters. Note that the Viaduct closure is scheduled to end at 5 pm, so the exit to northbound 99 should open then (another 99 closure is scheduled 6 am-noon tomorrow).

3:48 PM UPDATE: Some are asking about the low bridge. This camera’s the only view we have – it shows the west entrance to the eastbound low bridge, in the background, and has been looking fairly backed up:

4:17 PM: The high bridge is still backed up but the low bridge looks to be in better shape (one commenter on Facebook said it appeared to have marine traffic going through earlier).

4:26 PM: Some of the pressure’s being taken off with the slightly early reopening of Highway 99 – all cameras show the exit from the eastbound bridge has been reopened, and traffic is moving on Viaduct/99:

Thanks again to everyone who helped with updates (as long as you can do so safely – no texting/calling if you’re driving, please, we can wait to hear till you get where you’re going!) – 206-293-6302 any time.

6:26 PM UPDATE: We just read the fine print on the later WSDOT confirmation that 99 was open: They are now saying the previously announced Sunday morning closure is no longer needed – not the 99/Viaduct stretch, anyway; there IS still a 6 am-11 am closure planned *north* of Battery St. Tunnel for the Hot Chocolate run.