First, earlier today, a big rig dumped a tractor onto the road near Arcata:

@HumCHPUpdates
HumCHPUpdates 1185R BOBCAT UPSIDE DOWN IN THE #1. #May02CHP0097
May 02 via Humboldt CHP (via LoCO)FavoriteRetweetReply

That’s all cleared up. Now, according to multiple callers, a fallen eucalypus tree is blocking lanes on Broadway in Eureka. Somewhere in the neighborhood of here:

Map

Traffic all backed up to hell, we are told.

UPDATE, 12:52 p.m.:

@silygirl0
Melissa Culbertson @LCOutpost the line of cars backed up going north bound on 101 by the mall is crazy!! #streetreporting
May 02 via Twitter for iPhoneFavoriteRetweetReply

UPDATE, 3:25 p.m.:

Cleaning up the wreckage. (Thanks, @silygirl0!):

http://yfrog.com/h6qjnmfj