Crash involving semi truck reported on I-580 in Carson City.
Update 7:30 a.m.: All lanes of traffic are now open. Crews remain in the median clearing the scene.
•••
I-580 between the William Street exit and Fairview exit is backed up this morning after a crash involving a semi-truck. One lane is open in both directions as the scene is being worked on.
The crash happened about 5:30 a.m.