10 a.m. update: The Green County Sheriff's Office reports County N is reopened.

MONROE — A portion of County N just north of Monroe is closed to traffic while crews clean up after a milk truck crashed into a power pole early Wednesday.

The male driver was taken by ambulance to Monroe Clinic for treatment of non-life threatening injuries, said Monroe Fire Chief Dan Smits.

County N is closed to traffic between County C and Wisconsin 81, according to the Green County Sheriff's Office. Drivers are advised to use County J or Wis. 69 for the time being.

The closure is expected to last until at least 10 a.m.

Smits said the accident happened shortly after 4 a.m. in the N3500 block of County N, near Iliff Road. The tanker landed on its side in the ditch.

Authorities were alerted to the crash by a 911 caller who reported hearing a vehicle crash on the road, said Green County Chief Deputy Tom Moczynski. The caller also reported there was "some really heavy fog" in the area.

Green County remains under a dense fog advisory until 10 a.m. Wednesday.

As of 8 a.m., Smits said some crews were still on scene but his firefighters had left. The milk tank had to be pumped out first, then tow companies responded to pull the tanker truck back onto its wheels.

"They did a phenomenal job," Smits said. "They just now tipped it. ... They just uprighted it in seconds."

Alliant Energy was responding to replace the power pole, he said. It was still standing upright but the impact of the truck had cracked it in half.