4:40 PM: Thanks for the tip! A reader called about this just as we were hearing the SPD dispatch. As you can see, this is blocking 2+ lanes of the eastbound West Seattle Bridge, and police aren’t there yet.
4:48 PM: Police have arrived and have the eastbound bridge down to one lane. They say the truck has lost a wheel, so they’re calling two tow trucks including a flatbed. No report of injuries.