Crews are working on the Lowry Hill tunnel after a milk tanker struck a median and overturned, spilling the white liquid all over the highway.
The truck was going westbound at about 11:15 a.m. when it hit the concrete barrier and flipped over, authorities said.
Three other vehicles were involved in the crash; the truck driver and another person were taken to the hospital.
But no need to cry over spilled milk (sorry) -- no serious injuries were reported.
The westbound lanes were reopened after briefly closing, and traffic was still slow-moving this afternoon.