11:55 AM: Thanks to Jeff for the tip – confirmed by SDOT, which tweeted the image above: A broken-down truck is blocking the left lane on the eastbound West Seattle Bridge just past 1st Avenue S., and that’s extra trouble given the unavailability of the “low bridge” as a detour. So if you have to head east, you might want to wait a while.

UPDATE: SDOT says this was cleared just before 1 pm.